TransCanada Reports First Quarter Comparable Earnings of $328 Million or $0.48 Per Share, Invested $1.3 Billion to Advance $22 Billion Capital Program

CALGARY, ALBERTA--(Marketwire - April 30, 2010) - TransCanada Corporation (TSX:TRP) (NYSE:TRP) (TransCanada or the Company) today announced comparable earnings for first quarter 2010 of $328 million or $0.48 per share. Net income applicable to common shares was $296 million or $0.43 per share. TransCanada's Board of Directors also declared a quarterly dividend of $0.40 per common share for the quarter ending June 30, 2010, equivalent to $1.60 per share on an annualized basis.

"TransCanada's pipeline, power and gas storage businesses posted solid results against the backdrop of an economy that is slowly moving toward recovery," says Hal Kvisle, TransCanada's president and chief executive officer. "The company's disciplined, low-risk approach produced comparable earnings of $328 million - within five per cent of our earnings in the first quarter of last year. Weaker power prices and higher business development costs associated with advancing the Alaska Pipeline Project contributed to the slightly lower business unit results. On a per share basis, lower reported earnings were primarily due to an increase in the number of shares outstanding resulting from our prudent approach to financing our unprecedented capital program."

"TransCanada continues to make excellent progress on an outstanding suite of major projects that are part of our $22 billion capital program," Kvisle added. "We look forward to first oil reaching refineries in Wood River and Patoka, Illinois through our Keystone pipeline system in the coming months. The North Central Corridor gas pipeline is now operating, our Halton Hills generating station is nearing completion and construction is set to begin this summer on our Groundbirch gas pipeline that will bring B.C. shale gas to market."

"As we invest in the future today, our large scale, long life projects will drive long term growth in earnings and cash flow as they become operational."

First Quarter Highlights

(All financial figures are unaudited and in Canadian dollars unless noted otherwise)

- Comparable earnings of $328 million or $0.48 per share

- Net income applicable to common shares of $296 million or $0.43 per share

- Common share dividend of $0.40 per share for the quarter ending June 30, 2010

- Comparable earnings before interest, taxes, depreciation and amortization (EBITDA) of $1,001 million

- Funds generated from operations of $723 million

- Invested $1.3 billion to advance unprecedented $22 billion capital program

Comparable earnings for first quarter 2010 were $328 million ($0.48 per share) compared to $343 million ($0.55 per share) in first quarter 2009. The decrease in comparable earnings was primarily due to lower realized power prices in Western Power, lower earnings from Bruce A as a result of lower volumes and higher operating costs associated with planned and unplanned outages, and higher business development costs on the Alaska pipeline project. Partially offsetting these decreases were higher earnings from U.S. Power relating to higher capacity payments in New York, higher earnings from Natural Gas Storage, earnings from Portlands which was placed in service in April 2009 and lower net interest expense from increased capitalization of interest related to the Company's large capital growth program.

Comparable earnings in first quarter 2010, on a per share basis, were reduced by the dilutive impact of an 11 per cent increase in the average number of common shares outstanding following the issuance of 58.4 million common shares in second quarter 2009. Proceeds from this offering were used to partially fund capital growth projects, including the acquisition of additional interests in Keystone, for general corporate purposes and to repay short term debt. TransCanada's $22 billion capital program is expected to generate significant cash flow and earnings over the next five years as projects commence operations.

Notable recent developments in Pipelines, Energy and Corporate include:

Pipelines:

- In March 2010, the National Energy Board of Canada (NEB) approved the Company's application to construct and operate the Canadian portion of the Keystone Gulf Coast Expansion. It was a significant milestone in advancing the project. The Keystone expansion will be the first pipeline to directly connect a growing and reliable supply of Canadian crude oil to the largest refining market in North America. Shippers have committed crude oil that amounts to 75 per cent of the expansion capacity for an average term of 17 years. This long term commitment illustrates the value the project has to TransCanada and the overall market. Facility permits for the U.S. portion of the Keystone expansion are expected by late 2010.

- Commissioning of the first phase of Keystone, extending from Hardisty, Alberta to Wood River and Patoka, Illinois with an initial capacity of 435,000 barrels per day (Bbl/d) continued in the first quarter of 2010 and it is expected to be placed in service in second quarter 2010. Contracted volumes of 217,500 Bbl/d will increase to 910,000 Bbl/d from 2010 through to 2013 as the Cushing and Gulf Coast phases become operational. Based on these current long-term commitments, TransCanada expects Keystone to generate EBITDA of approximately US$1.2 billion in 2013 - its first full year of commercial operation. If volumes were to increase to 1.1 million Bbl/d, the full commercial design of the system, Keystone would generate annual EBITDA of approximately US$1.5 billion. In the future, Keystone could be economically expanded from 1.1 million Bbl/d to 1.5 million Bbl/d to meet market demand.

- The open season for the Alaska Pipeline Project was launched April 30, 2010. Potential shippers have 90 days to assess the merits of the open season - from May through July 2010. The Alaska Pipeline Project will provide information to potential shippers in Alaska and Canada about the project's anticipated engineering design, commercial terms, estimated project costs and timelines. It is typical on a project of this size for bids from shippers to be conditional. The Alaska Pipeline Project will work with shippers over the summer and fall to resolve any issues within the project's control. Other key issues such as Alaska fiscal terms and natural gas resource access at Point Thomson will need to be resolved between shippers and the State of Alaska. The results of the open season are expected to be available near the end of 2010.

- TransCanada and the other partners involved in the Mackenzie Gas Pipeline Project continue to pursue approval of the proposed project. The focus is on obtaining regulatory approval and the Canadian government's support of an acceptable fiscal framework. The NEB recently concluded the final argument hearings for the project and is expected to release its conclusions on the project's application in September 2010.

- In March 2010, TransCanada received approval from the NEB to construct and operate the Groundbirch pipeline. It will be a 77 kilometre (km) (48-mile) natural gas pipeline that will extend the Alberta System, connecting to natural gas supplies in the Montney shale gas formation in northeast B.C. Construction of the Groundbirch pipeline is expected to begin in July 2010 and should be complete by November 2010. The approximate $200 million project has firm transportation contracts that will reach 1.1 billion cubic feet per day (Bcf/d) by 2014.

- TransCanada's Horn River project which includes 72 km (45-mile) of new pipe and the 83 km (52-mile) Ekwan pipeline to be acquired from Encana Corporation will bring B.C. shale gas to market through the Alberta System. The Ekwan pipeline acquisition is expected to close in September 2011. In April 2010, the NEB announced that it will hold a public hearing process on an application TransCanada filed in February 2010 for approval to construct and operate the Horn River project. The public hearing process is scheduled to begin in October 2010. Subject to regulatory approvals, the approximate $310 million Horn River project with commitments for contracted gas of 503 mmcf/d is expected to be operational in second quarter 2012.

- TransCanada's 160 km (99-mile) Red Earth section of the North Central Corridor (NCC) pipeline is now operating. The 140 km (87-mile) North Star section was completed in 2009, along with two compressor stations. The NCC is a 300 km (186-mile) expansion of the Alberta System that provides needed capacity to accommodate increasing natural gas supply in northwest Alberta and northeast B.C. and growing markets in Alberta. The pipeline will initially move about 800 mmcf/d of gas, with total capability of about 1.6 Bcf/d. The project was completed ahead of schedule and under budget of approximately $800 million.

- Bison received its Federal Energy Regulatory Commission certificate of public convenience and necessity on April 9, 2010. Construction is expected to begin in second quarter 2010 on the 487 km (303-mile) natural gas pipeline that has shipping commitments for approximately 407 mmcf/d of gas. The approximate US$600 million project is expected to be in service in fourth quarter 2010.

Energy:

- Construction of the 683 megawatt (MW) Halton Hills Generating Station in Ontario is substantially complete. Commissioning activities have begun and the facility is on schedule to begin operating in third quarter 2010. The commissioning team has safely used compressed air and nitrogen to blow clean the high pressure pipeline that supplies natural gas to the plant.

- Construction continues on the 575 MW Coolidge Generating Station. The generating station is anticipated to be in service by the summer of 2011.

- TransCanada continues to review the results of the open seasons on the proposed Zephyr and Chinook power transmission line projects and expects to finalize those results in second quarter 2010. Each project would be capable of delivering primarily renewable wind-generated power originating in Wyoming (Zephyr) and Montana (Chinook) to Nevada to access California and other desert southwest U.S. markets.

Corporate:

- On April 15, 2010, Hal Kvisle announced his retirement as president and chief executive officer effective June 30, 2010. Russ Girling, currently chief operating officer, will succeed Mr. Kvisle as president and chief executive officer on July 1, 2010.

- The Board of Directors of TransCanada declared a quarterly dividend of $0.40 per share for the quarter ending June 30, 2010, on TransCanada's outstanding common shares.

- In March 2010, TransCanada completed a public offering of 14 million Series 3 cumulative redeemable first preferred shares, including the full exercise of an underwriters' over-allotment option of two million shares. The preferred shares were issued at $25 per share, resulting in gross proceeds of $350 million. The initial dividend rate is fixed for five years at four per cent per annum payable quarterly. The net proceeds of this offering were used to partially fund capital projects, for general corporate purposes and to repay short-term debt.

- TransCanada is well positioned to fund its existing capital program through its growing internally-generated cash flow, its dividend reinvestment and share purchase plan, and its continued access to capital markets. TransCanada will also continue to examine opportunities for portfolio management, including a greater role for TC PipeLines, LP in financing its capital program.

Teleconference - Audio and Slide Presentation:

TransCanada will hold a teleconference and webcast to discuss its 2010 first quarter financial results. Hal Kvisle, TransCanada president and chief executive officer and Greg Lohnes, executive vice-president and chief financial officer, along with other members of the TransCanada executive leadership team, will discuss the financial results and company developments, including its $22 billion capital program, before opening the call to questions from analysts and members of the media.

Event:

TransCanada first quarter 2010 financial results teleconference and webcast

Date:

Friday, April 30, 2010

Time:

1 p.m. mountain daylight time (MDT) /3 p.m. eastern daylight time (EDT)

How:

To participate in the teleconference, please call 866.223.7781 or 416.340.8018 (Toronto area). Please dial in 10 minutes prior to the start of the call. No pass code is required. A live webcast of the teleconference will also be available on TransCanada's website at www.transcanada.com.

A replay of the teleconference will be available two hours after the conclusion of the call until midnight (EDT) May 7, 2010. Please call 800.408.3053 or 416.695.5800 (Toronto area) and enter pass code 3375460#. The webcast will be archived and available for replay at www.transcanada.com.

With more than 50 years' experience, TransCanada is a leader in the responsible development and reliable operation of North American energy infrastructure including natural gas and oil pipelines, power generation and gas storage facilities. TransCanada's network of wholly owned natural gas pipelines extends more than 60,000 kilometres (37,000 miles), tapping into virtually all major gas supply basins in North America. TransCanada is one of the continent's largest providers of gas storage and related services with approximately 380 billion cubic feet of storage capacity. A growing independent power producer, TransCanada owns, or has interests in, over 11,700 megawatts of power generation in Canada and the United States. TransCanada is developing one of North America's largest oil delivery systems. TransCanada's common shares trade on the Toronto and New York stock exchanges under the symbol TRP. For more information visit: www.transcanada.com

Forward-Looking Information

This news release may contain certain information that is forward-looking and is subject to important risks and uncertainties. The words "anticipate", "expect", "believe", "may", "should", "estimate", "project", "outlook", "forecast" or other similar words are used to identify such forward looking information. Forward-looking statements in this document are intended to provide TransCanada security holders and potential investors with information regarding TransCanada and its subsidiaries, including management's assessment of TransCanada's and its subsidiaries' future financial and operational plans and outlook. Forward-looking statements in this document may include, among others, statements regarding the anticipated business prospects, projects and financial performance of TransCanada and its subsidiaries, expectations or projections about the future, strategies and goals for growth and expansion, expected and future cash flows, costs, schedules, including anticipated construction and completion dates, operating and financial results and expected impact of future commitments and contingent liabilities.
All forward-looking statements reflect TransCanada's beliefs and assumptions based on information available at the time the statements were made. Actual results or events may differ from those predicted in these forward looking statements. Factors that could cause actual results or events to differ materially from current expectations include, among others, the ability of TransCanada to successfully implement its strategic initiatives and whether such strategic initiatives will yield the expected benefits, the operating performance of the Company's pipeline and energy assets, the availability and price of energy commodities, capacity payments, regulatory processes and decisions, changes in environmental and other laws and regulations, competitive factors in the pipeline and energy sectors, construction and completion of capital projects, labour, equipment and material costs, access to capital markets, interest and currency exchange rates, technological developments and economic conditions in North America. By its nature, forward-looking information is subject to various risks and uncertainties, which could cause TransCanada's actual results and experience to differ materially from the anticipated results or expectations expressed. Additional information on these and other factors is available in the reports filed by TransCanada with Canadian securities regulators and with the U.S. Securities and Exchange Commission. Readers are cautioned not to place undue reliance on this forward-looking information, which is given as of the date it is expressed in this news release or otherwise, and not to use future-oriented information or financial outlooks for anything other than their intended purpose. TransCanada undertakes no obligation to update publicly or revise any forward-looking information, whether as a result of new information, future events or otherwise, except as required by law.

Non-GAAP Measures

TransCanada uses the measures "comparable earnings", "comparable earnings per share", "earnings before interest, taxes, depreciation and amortization" (EBITDA), "comparable EBITDA", "earnings before interest and taxes" (EBIT), "comparable EBIT" and "funds generated from operations" in this news release. These measures do not have any standardized meaning prescribed by Canadian generally accepted accounting principles (GAAP). They are, therefore, considered to be non-GAAP measures and may not be comparable to similar measures presented by other entities. Management of TransCanada uses these non-GAAP measures to improve its ability to compare financial results among reporting periods and to enhance its understanding of operating performance, liquidity and ability to generate funds to finance operations. These non-GAAP measures are also provided to readers as additional information on TransCanada's operating performance, liquidity and ability to generate funds to finance operations.

EBITDA is an approximate measure of the Company's pre-tax operating cash flow. EBITDA comprises earnings before deducting interest and other financial charges, income taxes, depreciation and amortization, non-controlling interests and preferred share dividends. EBIT is a measure of the Company's earnings from ongoing operations. EBIT comprises earnings before deducting interest and other financial charges, income taxes, non-controlling interests and preferred share dividends.

Management uses the measures of comparable earnings, comparable EBITDA and comparable EBIT to better evaluate trends in the Company's underlying operations. Comparable earnings, comparable EBITDA and comparable EBIT comprise net income applicable to common shares, EBITDA and EBIT, respectively, adjusted for specific items that are significant, but are not reflective of the Company's underlying operations in the period. Specific items are subjective, however, management uses its judgement and informed decision-making when identifying items to be excluded in calculating comparable earnings, comparable EBITDA and comparable EBIT, some of which may recur. Specific items may include but are not limited to certain income tax refunds and adjustments, gains or losses on sales of assets, legal and bankruptcy settlements, and certain fair value adjustments. The "Consolidated Results of Operations" table in the "Management's Discussion and Analysis" presents a reconciliation of comparable earnings, comparable EBITDA, comparable EBIT and EBIT to net income and net income applicable to common shares. Comparable earnings per common share is calculated by dividing comparable earnings by the weighted average number of common shares outstanding for the period.

Funds generated from operations comprises net cash provided by operations before changes in operating working capital. A reconciliation of funds generated from operations to net cash provided by operations is presented in the First Quarter 2010 Financial Highlights table in this news release.

First Quarter 2010 Financial Highlights

Operating Results
                                                      Three months ended
(unaudited)                                                  March 31
(millions of dollars)                                   2010           2009
----------------------------------------------------------------------------

Revenues                                               1,955          2,179

Comparable EBITDA(1)                                   1,001          1,131

Comparable EBIT(1)                                       658            785

EBIT(1)                                                  609            772

Net Income                                               303            334

Net Income Applicable to Common Shares                   296            334

Comparable Earnings(1)                                   328            343
Cash Flows
 Funds generated from operations(1)                      723            766
 Decrease in operating working capital                   109             82
                                                     -----------------------
 Net cash provided by operations                         832            848
                                                     -----------------------
                                                     -----------------------

Capital Expenditures                                   1,276          1,123
Acquisitions, Net of Cash
Acquired                                                   -            134
                                                     -----------------------
                                                     -----------------------


Common Share Statistics
                                                       Three months ended
                                                             March 31
(unaudited)                                             2010           2009
----------------------------------------------------------------------------

Net Income Per Share - Basic                           $0.43          $0.54

Comparable Earnings Per Share(1)                       $0.48          $0.55

Dividends Declared Per Share                           $0.40          $0.38

Basic Common Shares Outstanding
(millions)
 Average for the period                                  686            618
 End of period                                           687            619
                                                     -----------------------
                                                     -----------------------

(1) Refer to the Non-GAAP Measures section in this news release for further
    discussion of comparable EBITDA, comparable EBIT, EBIT, comparable
    earnings, funds generated from operations and comparable earnings per
    share.

TRANSCANADA CORPORATION - FIRST QUARTER 2010

Quarterly Report to Shareholders

Management's Discussion and Analysis

Management's Discussion and Analysis (MD&A) dated April 29, 2010 should be read in conjunction with the accompanying unaudited Consolidated Financial Statements of TransCanada Corporation (TransCanada or the Company) for the three months ended March 31, 2010. It should also be read in conjunction with the audited Consolidated Financial Statements and notes thereto, and the MD&A contained in TransCanada's 2009 Annual Report for the year ended December 31, 2009. Additional information relating to TransCanada, including the Company's Annual Information Form and other continuous disclosure documents, is available on SEDAR at www.sedar.com under TransCanada Corporation. Unless otherwise indicated, "TransCanada" or "the Company" includes TransCanada Corporation and its subsidiaries. Amounts are stated in Canadian dollars unless otherwise indicated. Capitalized and abbreviated terms that are used but not otherwise defined herein are identified in the Glossary of Terms contained in TransCanada's 2009 Annual Report.

Forward-Looking Information

This MD&A may contain certain information that is forward looking and is subject to important risks and uncertainties. The words "anticipate", "expect", "believe", "may", "should", "estimate", "project", "outlook", "forecast" or other similar words are used to identify such forward-looking information. Forward-looking statements in this document are intended to provide TransCanada security holders and potential investors with information regarding TransCanada and its subsidiaries, including management's assessment of TransCanada's and its subsidiaries' future financial and operational plans and outlook. Forward-looking statements in this document may include, among others, statements regarding the anticipated business prospects, projects and financial performance of TransCanada and its subsidiaries, expectations or projections about the future, strategies and goals for growth and expansion, expected and future cash flows, costs, schedules (including anticipated construction and completion dates), operating and financial results, and expected impact of future commitments and contingent liabilities.
All forward-looking statements reflect TransCanada's beliefs and assumptions based on information available at the time the statements were made. Actual results or events may differ from those predicted in these forward-looking statements. Factors that could cause actual results or events to differ materially from current expectations include, among others, the ability of TransCanada to successfully implement its strategic initiatives and whether such strategic initiatives will yield the expected benefits, the operating performance of the Company's pipeline and energy assets, the availability and price of energy commodities, capacity payments, regulatory processes and decisions, changes in environmental and other laws and regulations, competitive factors in the pipeline and energy sectors, construction and completion of capital projects, labour, equipment and material costs, access to capital markets, interest and currency exchange rates, technological developments and economic conditions in North America. By its nature, forward-looking information is subject to various risks and uncertainties, which could cause TransCanada's actual results and experience to differ materially from the anticipated results or expectations expressed. Additional information on these and other factors is available in the reports filed by TransCanada with Canadian securities regulators and with the U.S. Securities and Exchange Commission (SEC). Readers are cautioned not to place undue reliance on this forward-looking information, which is given as of the date it is expressed in this MD&A or otherwise, and not to use future-oriented information or financial outlooks for anything other than their intended purpose. TransCanada undertakes no obligation to update publicly or revise any forward-looking information, whether as a result of new information, future events or otherwise, except as required by law.

Non-GAAP Measures

TransCanada uses the measures Comparable Earnings, Comparable Earnings Per Share, Earnings Before Interest, Taxes, Depreciation and Amortization (EBITDA), Comparable EBITDA, Earnings Before Interest and Taxes (EBIT), Comparable EBIT and Funds Generated from Operations in this MD&A. These measures do not have any standardized meaning prescribed by Canadian generally accepted accounting principles (GAAP). They are, therefore, considered to be non-GAAP measures and may not be comparable to similar measures presented by other entities. Management of TransCanada uses these non-GAAP measures to improve its ability to compare financial results among reporting periods and to enhance its understanding of operating performance, liquidity and ability to generate funds to finance operations. These non-GAAP measures are also provided to readers as additional information on TransCanada's operating performance, liquidity and ability to generate funds to finance operations.

EBITDA is an approximate measure of the Company's pre-tax operating cash flow. EBITDA comprises earnings before deducting interest and other financial charges, income taxes, depreciation and amortization, non-controlling interests and preferred share dividends. EBIT is a measure of the Company's earnings from ongoing operations. EBIT comprises earnings before deducting interest and other financial charges, income taxes, non-controlling interests and preferred share dividends.

Management uses the measures of Comparable Earnings, Comparable EBITDA and Comparable EBIT to better evaluate trends in the Company's underlying operations. Comparable Earnings, Comparable EBITDA and Comparable EBIT comprise Net Income Applicable to Common Shares, EBITDA and EBIT, respectively, adjusted for specific items that are significant but are not reflective of the Company's underlying operations in the period. Specific items are subjective, however, management uses its judgement and informed decision-making when identifying items to be excluded in calculating Comparable Earnings, Comparable EBITDA and Comparable EBIT, some of which may recur. Specific items may include but are not limited to certain income tax refunds and adjustments, gains or losses on sales of assets, legal and bankruptcy settlements, and certain fair value adjustments. The table in the Consolidated Results of Operations section of this MD&A presents a reconciliation of Comparable Earnings, Comparable EBITDA, Comparable EBIT and EBIT to Net Income and Net Income Applicable to Common Shares. Comparable Earnings Per Share is calculated by dividing Comparable Earnings by the weighted average number of common shares outstanding for the period.

Funds Generated from Operations comprises Net Cash Provided by Operations before changes in operating working capital. A reconciliation of Funds Generated from Operations to Net Cash Provided by Operations is presented in the Funds Generated from Operations table in the Liquidity and Capital Resources section of this MD&A.

Consolidated Results of Operations

Reconciliation of Comparable Earnings, Comparable EBITDA, Comparable EBIT and EBIT to Net Income

For the three months ended March 31
(unaudited)(millions
 of dollars except     Pipelines       Energy       Corporate       Total
 per share amounts)   2010   2009   2010   2009   2010   2009   2010   2009
----------------------------------------------------------------------------

Comparable EBITDA(1)   768    871    259    290    (26)   (30) 1,001  1,131
Depreciation and
 amortization         (253)  (260)   (90)   (86)     -      -   (343)  (346)
                      ------------------------------------------------------
Comparable EBIT(1)     515    611    169    204    (26)   (30)   658    785
Specific items:
 Fair value
 adjustments of
 U.S. Power
 derivative
 contracts               -      -    (28)     -      -      -    (28)     -
 Fair value
  adjustments of
  natural gas
  inventory in storage
  and forward
  contracts              -      -    (21)   (13)     -      -    (21)   (13)
                      ------------------------------------------------------
EBIT(1)                515    611    120    191    (26)   (30)   609    772
                      ----------------------------------------
                      ----------------------------------------
Interest expense                                                (182)  (295)
Interest expense of
 joint ventures                                                  (16)   (14)
Interest income and other                                         24     22
Income taxes                                                    (101)  (116)
Non-controlling interests                                        (31)   (35)

                                                              --------------
Net Income                                                       303    334
Preferred share dividends                                         (7)     -

                                                              --------------
Net Income Applicable to                                         296    334
Common Shares

Specific items (net of tax):
 Fair value adjustments of U.S. Power derivative contracts        17      -
 Fair value adjustments of natural gas inventory in storage and
  forward contracts                                               15      9
                                                              --------------
Comparable Earnings(1)                                           328    343
                                                              --------------
                                                              --------------

Net Income Per Share - Basic and Diluted(2)                   $ 0.43 $ 0.54
                                                              --------------
                                                              --------------

(1) Refer to the Non-GAAP Measures section in this   MD&A for further
    discussion of Comparable EBITDA, Comparable EBIT, EBIT, Comparable
    Earnings and Comparable Earnings Per Share.

(2) For the three months ended March 31
    (unaudited)                                                 2010   2009
    ------------------------------------------------------------------------
    ------------------------------------------------------------------------

    Net Income Per Share                                      $ 0.43 $ 0.54

    Specific items (net of tax):
     Fair value adjustments of U.S. Power derivative contracts  0.03      -
     Fair value adjustments of natural gas inventory in storage
      and forward contracts                                     0.02   0.01
                                                              --------------
    Comparable Earnings Per Share(1)                          $ 0.48 $ 0.55
                                                              --------------
                                                              --------------

TransCanada's Net Income was $303 million and Net Income Applicable to Common Shares was $296 million or $0.43 per share in first quarter 2010 compared to $334 million or $0.54 per share in first quarter 2009. The $38 million decrease in Net Income Applicable to Common Shares reflected:

- decreased EBIT from Pipelines primarily due to the negative impact of a weaker U.S. dollar, lower revenues from certain Other U.S. Pipelines, and higher business development costs relating to the Alaska pipeline project;

- decreased EBIT from Energy primarily due to reduced realized power prices in Western Power, lower volumes and higher operating costs at Bruce A, and lower contracted earnings at Becancour, partially offset by increased capacity payments at Ravenswood, higher third-party storage revenues for Natural Gas Storage and incremental earnings from Portlands Energy which went into service in April 2009; and

- decreased Interest Expense primarily due to increased capitalized interest and the positive effect of a weaker U.S. dollar on U.S. dollar-denominated interest.

The decrease in Net Income Per Share in first quarter 2010 was also impacted by an 11 per cent increase in the average number of common shares outstanding, in first quarter 2010 compared to first quarter 2009, following the Company's issuance of 58.4 million common shares in second quarter 2009.

Comparable Earnings in first quarter 2010 decreased $15 million or $0.07 per share to $328 million or $0.48 per share, compared to $343 million or $0.55 per share for the same period in 2009. Comparable Earnings in first quarter 2010 excluded net unrealized after tax losses of $17 million ($28 million pre-tax) resulting from changes in the fair value of certain U.S. Power derivative contracts. Effective January 1, 2010, these unrealized losses have been removed from Comparable Earnings as they are not representative of amounts that will be realized on settlement of the contracts. Comparative amounts in 2009 were not material and therefore were not excluded from the computation of Comparable Earnings. Comparable Earnings in first quarter 2010 and 2009 also excluded net unrealized after tax losses of $15 million ($21 million pre-tax) and $9 million ($13 million pre-tax), respectively, resulting from changes in the fair value of proprietary natural gas inventory in storage and natural gas forward purchase and sale contracts.

On a consolidated basis, the impact of changes in the value of the U.S. dollar on U.S. Pipelines and Energy EBIT is largely offset by the impact on U.S. dollar-denominated interest. The resultant net exposure is managed using derivatives, effectively reducing the Company's exposure to changes in foreign exchange rates. The average U.S. dollar exchange rate for the three months ended March 31, 2010 was 1.04 (2009 - 1.25).

Results from each of the segments for first quarter 2010 are discussed further in the Pipelines, Energy and Corporate sections of this MD&A.

Pipelines

Pipelines' Comparable EBIT and EBIT were $515 million in first quarter 2010 compared to $611 million for the same period in 2009.

Pipelines Results
                                                        Three months ended
(unaudited)                                                   March 31
(millions of dollars)                                   2010           2009
----------------------------------------------------------------------------

Canadian Pipelines
Canadian Mainline                                        265            284
Alberta System                                           175            168
Foothills                                                 33             34
Other (TQM, Ventures LP)                                  13             19
                                                     -----------------------
Canadian Pipelines Comparable EBITDA(1)                  486            505
                                                     -----------------------

U.S. Pipelines
ANR                                                      120            133
GTN(2)                                                    45             61
Great Lakes                                               33             44
PipeLines LP(2)(3)                                        26             29
Iroquois                                                  19             23
Portland(4)                                               10             14
International (Tamazunchale,
TransGas, Gas Pacifico/INNERGY)                           10             13
General, administrative and
 support costs(5)                                         (6)            (3)
Non-controlling interests(6)                              48             60
                                                     -----------------------
U.S. Pipelines Comparable
EBITDA(1)                                                305            374
                                                     -----------------------
Business Development Comparable
EBITDA(1)                                                (23)            (8)
                                                     -----------------------

Pipelines Comparable EBITDA(1)                           768            871
Depreciation and amortization                           (253)          (260)
                                                     -----------------------

Pipelines Comparable EBIT and EBIT(1)                    515            611
                                                     -----------------------
                                                     -----------------------

(1) Refer to the Non-GAAP Measures section in this MD&A for further
    discussion of Comparable EBITDA, Comparable EBIT and EBIT.
(2) GTN's results include North Baja until July 1, 2009 when it was sold to
    PipeLines LP.
(3) PipeLines LP's results reflect TransCanada's ownership interest in
    PipeLines LP of 38.2 per cent in first quarter 2010 (first quarter 2009
    - 32.1 per cent). 
(4) Portland's results reflect TransCanada's 61.7 per cent ownership
    interest.
(5) Represents certain costs associated with supporting the Company's
    Canadian and U.S. Pipelines.
(6) Non-controlling interests reflects Comparable EBITDA for the portions of
    PipeLines LP and Portland not owned by TransCanada.


Net Income for Wholly Owned Canadian Pipelines

                                                        Three months ended
(unaudited)                                                   March 31
(millions of dollars)                                   2010           2009
----------------------------------------------------------------------------

Canadian Mainline                                         66             66
Alberta System                                            38             39
Foothills                                                  6              6
                                                     -----------------------
                                                     -----------------------

Canadian Pipelines

Canadian Mainline's Comparable EBITDA for first quarter 2010 of $265 million decreased $19 million compared to the same period in 2009 primarily due to lower revenues as a result of lower income taxes and financial charges in the 2010 tolls, which are recovered on a flow-through basis and do not impact net income. The decrease in financial charges was primarily due to higher cost debt that matured in 2009.

The Alberta System's net income was $38 million in first quarter 2010 compared to $39 million in first quarter 2009. The impact of a higher average investment base in first quarter 2010 was offset by lower earnings due to the expiration of the 2008-2009 Revenue Requirement Settlement. Net income in 2010 reflects a rate of return on common equity (ROE) of 8.75 per cent on a deemed common equity of 35 per cent.

The Alberta System's Comparable EBITDA was $175 million in first quarter 2010 compared to $168 million in the same quarter of 2009. The increase was due to higher revenues as a result of a higher return associated with an increased average investment base and a recovery of increased depreciation and income taxes, partially offset by lower earnings due to the expiration of the 2008-2009 Revenue Requirement Settlement. Depreciation and income taxes are recovered on a flow-through basis and do not impact net income.

Comparable EBITDA from Other Canadian Pipelines was $13 million for first quarter 2010 compared to $19 million for the same period in 2009. The decrease in first quarter 2010 was primarily due to an adjustment recorded in first quarter 2009 for a National Energy Board of Canada (NEB) decision to retroactively increase TQM's allowed rate of return on capital for 2008 and 2007.

U.S. Pipelines

ANR's Comparable EBITDA for first quarter 2010 of $120 million decreased $13 million compared to $133 million for the same period in 2009 primarily due to the negative impact of a weaker U.S. dollar, partially offset by lower operating, maintenance and administration (OM&A) costs and increased incidental natural gas and condensate sales.

GTN's Comparable EBITDA for first quarter 2010 decreased $16 million from the same period in 2009 primarily due to the negative impact of a weaker U.S. dollar and the sale of North Baja to PipeLines LP in July 2009.

Comparable EBITDA for the remainder of the U.S. Pipelines was $140 million for first quarter 2010 compared to $180 million for the same period in 2009. The decrease was primarily due to the negative impact of a weaker U.S. dollar on U.S. Pipelines operations and lower revenues from Great Lakes, Northern Border and Portland, partially offset by the acquisition of North Baja by PipeLines LP.

Business Development

Pipelines' Business Development Comparable EBITDA losses increased $15 million in first quarter 2010 compared to the same period in 2009 primarily due to higher business development costs related to the continued advancement of the Alaska pipeline project. The State of Alaska has agreed to reimburse certain of TransCanada's eligible pre-construction costs, as they are incurred and approved by the state, to a maximum of US$500 million. Such reimbursements are shared proportionately with ExxonMobil, TransCanada's joint venture partner in developing the Alaska pipeline project.

Operating Statistics

Three months
 ended March     Canadian       Alberta
 31             Mainline(1)    System(2)    Foothills    ANR(3)     GTN(3)
(unaudited)    2010   2009    2010  2009   2010  2009 2010 2009   2010 2009
----------------------------------------------------------------------------

Average
 investment
 base
($millions)   6,629  6,590   4,956 4,586    677   725  n/a  n/a    n/a  n/a
Delivery
volumes
(Bcf)
 Total          560    646     938 1,027    328   323  447  491    207  195
 Average
  per day       6.2    7.2    10.4  11.4    3.6   3.6  5.0  5.5    2.3  2.2
----------------------------------------------------------------------------
----------------------------------------------------------------------------
 

(1) Canadian Mainline's throughput volumes in the above table reflect
    physical deliveries to domestic and export markets. Throughput volumes
    reported in previous years reflected contract deliveries, however,
    customer contracting patterns have changed in recent years making
    physical deliveries a better measure of system utilization. Canadian
    Mainline's physical receipts originating at the Alberta border and in
    Saskatchewan for the three months ended March 31, 2010 were 385 billion
    cubic feet (Bcf) (2009 - 472 Bcf); average per day was 4.3 Bcf (2009 -
    5.3 Bcf).
(2) Field receipt volumes for the Alberta System for the three months ended
    March 31, 2010 were 855 Bcf (2009 - 909 Bcf); average per day was 9.5
    Bcf (2009 - 10.1 Bcf).
(3) ANR's and GTN's results are not impacted by average investment base as
    these systems operate under fixed rate models approved by the U.S.
    Federal Energy Regulatory Commission.

Capitalized Project Costs

As at March 31, 2010, TransCanada had advanced $144 million to the Aboriginal Pipeline Group (APG) with respect to the Mackenzie Gas Pipeline Project (MGP). TransCanada and the other co-venture companies involved in the MGP continue to pursue approval of the proposed project, focusing on obtaining regulatory approval and the Canadian government's support of an acceptable fiscal framework. The NEB recently concluded the final argument hearings for the project and is expected to release its conclusions on the project's application in September 2010. Project timing continues to be uncertain. In the event the co-venture group is unable to reach an agreement with the government on an acceptable fiscal framework, the parties will need to determine the appropriate next steps for the project. For TransCanada, this may result in a reassessment of the carrying amount of the APG advances.

Energy

Energy's Comparable EBIT was $169 million in first quarter 2010 compared to $204 million in first quarter 2009. Comparable EBIT in first quarter 2010 excluded net unrealized losses of $28 million resulting from changes in the fair value of certain U.S. Power derivative contracts. Comparable EBIT in first quarter 2010 and 2009 also excluded net unrealized losses of $21 million and $13 million, respectively, from changes in the fair value of proprietary natural gas inventory in storage and natural gas forward purchase and sale contracts. Items excluded from Comparable Earnings are discussed further under the headings U.S. Power and Natural Gas Storage in this section.

Energy Results

                                                        Three months ended
(unaudited)                                                  March 31
(millions of dollars)                                  2010            2009
----------------------------------------------------------------------------

Canadian Power
Western Power                                            42              93
Eastern Power(1)                                         52              52
Bruce Power                                              63              99
General, administrative and support costs               (10)             (8)
                                                   -------------------------
Canadian Power Comparable EBITDA(2)                     147             236
                                                   -------------------------

U.S. Power
Northeast Power(3)                                       75              42
General, administrative and support costs                (9)            (12)
                                                   -------------------------
U.S. Power Comparable EBITDA(2)                          66              30
                                                   -------------------------

Natural Gas Storage
Alberta Storage                                          53              39
General, administrative and support costs                (2)             (3)
                                                   -------------------------
Natural Gas Storage Comparable EBITDA(2)                 51              36
                                                   -------------------------

Business Development Comparable EBITDA(2)                (5)            (12)
                                                   -------------------------

Energy Comparable EBITDA(2)                             259             290
Depreciation and amortization                           (90)            (86)
                                                   -------------------------
Energy Comparable EBIT(2)                               169             204
Specific items:
 Fair value adjustments of U.S.
  Power derivative contracts                            (28)              -
 Fair value adjustments of natural gas inventory in
  storage and forward contracts                         (21)            (13)
                                                   -------------------------
Energy EBIT(2)                                          120             191
                                                   -------------------------
                                                   -------------------------

(1) Includes Portlands Energy effective April 2009.
(2) Refer to the Non-GAAP Measures section in this MD&A for further
    discussion of Comparable EBITDA, Comparable EBIT and EBIT.
(3) Includes phase one of Kibby Wind effective October 2009.


Western and Eastern Canadian Power

Western and Eastern Canadian Power Comparable EBITDA(1)(2)

                                                        Three months ended
(unaudited)                                                  March 31
(millions of dollars)                                   2010           2009
----------------------------------------------------------------------------

Revenues
 Western power                                           164            215
 Eastern power                                            67             69
 Other(3)                                                 22             12
                                                     -----------------------
                                                         253            296
                                                     -----------------------
Commodity Purchases Resold
 Western power                                          (106)           (98)
 Other(3)(4)                                              (5)            (9)
                                                     -----------------------
                                                        (111)          (107)
                                                     -----------------------

Plant operating costs and other                          (48)           (44)
General, administrative and support costs                (10)            (8)
                                                     -----------------------
Comparable EBITDA(1)                                      84            137
                                                     -----------------------
                                                     -----------------------

(1) Refer to the Non-GAAP Measures section in this MD&A for further
    discussion of Comparable EBITDA.
(2) Includes Portlands Energy effective April 2009.
(3) Includes sales of excess natural gas purchased for generation and
    thermal carbon black. Effective January 1, 2010, the net impact of
    derivatives used to purchase and sell natural gas to manage Western and
    Eastern Power's assets is presented on a net basis in Other Revenues.
    Comparative results for 2009 reflect amounts reclassified from Other
    Commodity Purchases Resold to Other Revenues.
(4) Includes the cost of excess natural gas not used in operations.


Western and Eastern Canadian Power Operating Statistics(1)

                                                   Three months ended March
                                                                31
(unaudited)                                             2010           2009
----------------------------------------------------------------------------

Sales Volumes (GWh)
Supply
 Generation
  Western Power                                          585            605
  Eastern Power                                          429            355
 Purchased
  Sundance A & B and
    Sheerness PPAs                                     2,655          2,440
  Other purchases                                        149            185
                                                ----------------------------
                                                       3,818          3,585
                                                ----------------------------
                                                ----------------------------
Sales
 Contracted
  Western Power                                        2,269          2,053
  Eastern Power                                          445            391
 Spot
  Western Power                                        1,104          1,141
                                                ----------------------------
                                                       3,818          3,585
                                                ----------------------------
                                                ----------------------------
Plant Availability
Western Power(2)                                         95%            91%
Eastern Power                                            96%            97%
                                                ----------------------------
                                                ----------------------------

(1) Includes Portlands Energy effective April 2009.
(2) Excludes facilities that provide power to TransCanada under PPAs.

Western Power's Comparable EBITDA of $42 million and Power Revenues of $164 million in first quarter 2010 both decreased $51 million compared to the same period in 2009. These decreases were primarily due to lower revenues from the Alberta power portfolio resulting from lower overall realized power prices, partially offset by higher volumes of power sold. Average spot market power prices in Alberta decreased 35 per cent to $41 per megawatt hour (MWh) in first quarter 2010 compared to $63 per MWh in first quarter 2009.

Western Power's Commodity Purchases Resold increased $8 million in first quarter 2010 compared to the same period in 2009 primarily due to higher purchased power volumes under the Alberta power purchase arrangements (PPAs).

Eastern Power's Comparable EBITDA of $52 million in first quarter 2010 was consistent with the same period in 2009. Increased revenues due to incremental earnings from Portlands Energy, which went in service in April 2009, were offset by lower contracted earnings from Becancour.

Plant Operating Costs and Other, which includes fuel gas consumed in generation, of $48 million for first quarter 2010 increased from the same period in 2009 primarily due to incremental fuel consumed at Portlands Energy, partially offset by lower prices for natural gas fuel in Western Power.

Western Power manages the sale of its supply volumes on a portfolio basis. A portion of its supply is sold into the spot market to assure supply in the case of an unexpected plant outage. The overall amount of spot market volumes is dependent upon the ability to transact in forward sales markets at acceptable contract terms. This approach to portfolio management helps to minimize costs in situations where Western Power would otherwise have to purchase electricity in the open market to fulfill its contractual sales obligations. Approximately 67 per cent of Western Power sales volumes were sold under contract in first quarter 2010, compared to 64 per cent in first quarter 2009. To reduce its exposure to spot market prices on uncontracted volumes, as at March 31, 2010, Western Power had entered into fixed-price power sales contracts to sell approximately 7,000 gigawatt hours (GWh) for the remainder of 2010 and 6,100 GWh for 2011.

Eastern Power is focused on selling power under long-term contracts. In first quarter 2010 and 2009, all of Eastern Power's sales volumes were sold under contract and are expected to continue to be 100 per cent sold under contract for 2010 and 2011.

Bruce Power

Bruce Power Results

(TransCanada's proportionate share)
(unaudited)                                     Three months ended March 31
(millions of dollars unless otherwise indicated)        2010           2009
----------------------------------------------------------------------------

Revenues(1)                                              225            221
Operating Expenses                                      (162)          (122)
                                               -----------------------------
Comparable EBITDA(2)                                      63             99
                                               -----------------------------
                                               -----------------------------

Bruce A Comparable EBITDA(2)                              13             41
Bruce B Comparable EBITDA(2)                              50             58
                                               -----------------------------
Comparable EBITDA(2)                                      63             99
                                               -----------------------------
                                               -----------------------------

Bruce Power - Other Information
Plant availability
 Bruce A                                                  65%            97%
 Bruce B                                                  98%            96%
 Combined Bruce Power                                     87%            96%
Planned outage days
 Bruce A                                                  35              -
 Bruce B                                                   -              -
Unplanned outage days
 Bruce A                                                  26              5
 Bruce B                                                   6              8
Sales volumes (GWh)
 Bruce A                                                 989          1,495
 Bruce B                                               2,155          2,139
                                               -----------------------------
                                                       3,144          3,634
                                               -----------------------------
Results per MWh
 Bruce A power revenues                             $     64       $     63
 Bruce B power revenues(3)                          $     58       $     52
 Combined Bruce Power revenues                      $     60       $     57
Percentage of Bruce B output sold to spot
 market(4)                                                78%            36%
                                               -----------------------------
                                               -----------------------------

(1) Revenues include Bruce A's fuel cost recoveries of $5 million for the
    three months ended March 31, 2010 (2009 - $10 million). Revenues also
    include Bruce B unrealized losses of $1 million as a result of changes
    in the fair value of power derivatives for the three months ended March
    31, 2010 (2009 - $2 million gain).
(2) Refer to the Non-GAAP Measures section in this MD&A for further
    discussion of Comparable EBITDA.
(3) Includes revenues received under the floor price mechanism and contract
    settlements. 
(4) All of Bruce B's output is covered by the floor price mechanism,
    including volumes sold to the spot market.

TransCanada's proportionate share of Bruce Power's Comparable EBITDA decreased $36 million to $63 million in first quarter 2010 compared to $99 million in first quarter 2009 as a result of lower volumes and increased operating expenses due to an increase in outage days, partially offset by the impact of a payment made from Bruce B to Bruce A regarding 2009 amendments to a long-term agreement with the Ontario Power Authority (OPA). The net positive impact to TransCanada reflects TransCanada's higher percentage ownership interest in Bruce A.

TransCanada's proportionate share of Bruce A's Comparable EBITDA decreased $28 million to $13 million in first quarter 2010 compared to $41 million in first quarter 2009 as a result of decreased volumes and higher operating costs due to increased planned and unplanned outages, partially offset by the payment received from Bruce B. Bruce A's plant availability in first quarter 2010 was 65 per cent as a result of 61 outage days compared to an availability of 97 per cent and five outage days in the same period in 2009.

TransCanada's proportionate share of Bruce B's Comparable EBITDA decreased $8 million to $50 million in first quarter 2010 compared to $58 million in first quarter 2009 primarily due to the payment made to Bruce A, partially offset by higher realized prices resulting from the recognition of payments received pursuant to the floor price mechanism in Bruce B's contract with the OPA.

In second quarter 2009, Bruce B's contract with the OPA was amended such that, beginning in 2009, annual net payments received under the floor price mechanism will not be subject to repayment in future years. The support payments recognized by Bruce B in second quarter 2009 included an amount for first quarter 2009. Had this amount been included in first quarter 2009, the realized price on Bruce B revenues in first quarter 2009 would be consistent with the $58 per MWh realized in 2010.

Amounts received under the Bruce B floor price mechanism during the year are subject to repayment if the annual average spot price exceeds the annual average floor price. With respect to 2010, TransCanada currently expects spot prices to be less than the floor price for the remainder of the year, therefore, no amounts recorded in revenue in first quarter 2010 are expected to be repaid.

TransCanada's share of Bruce Power's generation in first quarter 2010 decreased to 3,144 GWh compared to 3,634 GWh in first quarter 2009, primarily due to an increase in the planned and unplanned outage days at Bruce A in first quarter 2010. Bruce Power units' combined average availability was 87 per cent in first quarter 2010 compared to 96 per cent in first quarter 2009.

Under a contract with the OPA, all of the output from Bruce A in first quarter 2010 was sold at a fixed price of $64.45 per MWh (before recovery of fuel costs from the OPA) compared to $63.00 per MWh in first quarter 2009. All output from the Bruce B units were subject to a floor price of $48.76 per MWh in first quarter 2010 and $47.66 per MWh in first quarter 2009. Both the Bruce A and Bruce B contract prices are adjusted annually for inflation on April 1. Effective April 1, 2010, the fixed price for output from Bruce A increased to $64.71 per MWh and the Bruce B floor price increased to $48.96 per MWh.

Bruce B also enters into fixed-price contracts whereby Bruce B receives or pays the difference between the contract price and the spot price. Bruce B's realized price of $58 per MWh in first quarter 2010 reflects revenues recognized from both the floor price mechanism and contract sales. A significant portion of these contracts will expire by the end of 2010, which is expected to result in lower realized prices at Bruce B for future periods. At March 31, 2010, Bruce B had sold forward approximately 1,200 GWh and 300 GWh, representing TransCanada's proportionate share, for the remainder of 2010 and 2011, respectively.

The overall plant availability percentage in 2010 is expected to be in the mid-80s for the two operating Bruce A units and in the high 80s for the four Bruce B units. A planned outage of Bruce A Unit 3 began in late February 2010 and ended April 25, 2010. Maintenance outages of approximately eight weeks are scheduled to begin in mid-May 2010 for Bruce B Unit 6 and mid-October 2010 for Bruce B Unit 5.

As at March 31, 2010, Bruce A had incurred approximately $3.4 billion in costs for the refurbishment and restart of Units 1 and 2, and approximately $0.2 billion for the refurbishment of Units 3 and 4.

U.S. Power

U.S. Power Comparable EBITDA(1)(2)

(unaudited)                                     Three months ended March 31
(millions of dollars)                                   2010           2009
----------------------------------------------------------------------------

Revenues
 Power(3)                                                241            272
 Capacity                                                 42             30
 Other(3)(4)                                              26             46
                                               -----------------------------
                                                         309            348
Commodity purchases resold(3)                           (142)          (122)
Plant operating costs and other(4)                       (92)          (184)
General, administrative and support costs                 (9)           (12)
                                               -----------------------------
Comparable EBITDA(1)                                      66             30
                                               -----------------------------
                                               -----------------------------

(1) Refer to the Non-GAAP Measures section of this MD&A for further
    discussion of Comparable EBITDA.
(2) Includes phase one of Kibby Wind effective October 2009.
(3) Effective January 1, 2010, the net impact of derivatives used to
    purchase and sell power, natural gas and fuel oil to manage U.S. Power's
    assets is presented on a net basis in Power Revenues. Comparative
    results for 2009 reflect amounts reclassified from Commodity Purchases
    Resold and Other Revenues to Power Revenues.
(4) Includes revenues and costs related to a third-party service agreement
    at Ravenswood.


U.S. Power Operating Statistics(1)

                                                   Three months ended March
                                                                31
(unaudited)                                             2010           2009
----------------------------------------------------------------------------

Sales Volumes (GWh)
Supply
 Generation                                              891          1,168
 Purchased                                             2,486          1,259
                                               -----------------------------
                                                       3,377          2,427
                                               -----------------------------
                                               -----------------------------
Sales
 Contracted                                            3,215          2,140
 Spot                                                    162            287
                                               -----------------------------
                                                       3,377          2,427
                                               -----------------------------
                                               -----------------------------

Plant Availability                                        86%            58%
                                               -----------------------------
                                               -----------------------------

(1) Includes phase one of Kibby Wind effective October 2009.

U.S. Power's Comparable EBITDA for first quarter 2010 of $66 million increased $36 million compared to the same period in 2009. The increase was primarily due to increased capacity revenue and a 2010 adjustment of Ravenswood's 2009 operating costs, partially offset by the impact of a weaker U.S. dollar.

U.S. Power's Power Revenues for first quarter 2010 of $241 million decreased from $272 million for the same period in 2009 primarily due to lower realized power prices and the impact of a weaker U.S. dollar, partially offset by higher volumes of power sold.

Other Revenues of $26 million decreased $20 million in first quarter 2010 compared to the same period in 2009 due to the impact of a weaker U.S. dollar in 2010 and a decrease in revenue associated with a third-party service agreement.

Power Commodity Purchases Resold of $142 million for first quarter 2010 increased from $122 million in the same period in 2009 primarily due to an increase in the quantity of power purchased for resale under its power sales commitments, partially offset by lower contracted power prices per MWh and the impact of a weaker U.S. dollar in first quarter 2010.

Plant Operating Costs and Other of $92 million for first quarter 2010 decreased $92 million from the same period in 2009 due to the impact of a weaker U.S. dollar, decreased asset dispatch, reduced fuel costs, lower overall maintenance costs and the Ravenswood prior year adjustment.

In first quarter 2010, 95 per cent of power sales volumes were sold under contract, compared to 88 per cent for the same period in 2009. U.S. Power is focused on selling the majority of its power under contract to wholesale, commercial and industrial customers, while managing a portfolio of power supplies sourced from its own generation and wholesale power purchases. To reduce its exposure to spot market prices on uncontracted volumes, as at March 31, 2010, U.S. Power had entered into fixed-price power sales contracts to sell approximately 8,900 GWh for the remainder of 2010 and 6,600 GWh for 2011, including financial contracts to effectively lock in the margin on forecasted generation. Certain contracted volumes are dependent on customer usage levels and actual amounts contracted in future periods and will depend on market liquidity and other factors.

Comparable EBITDA excluded net unrealized losses of $28 million in first quarter 2010 resulting from changes in the fair value of certain U.S. Power derivative contracts. Power is purchased under forward contracts to satisfy a significant portion of U.S. Power's wholesale, commercial and industrial power sales commitments, mitigating its exposure to fluctuations in spot market prices and effectively locking in a positive margin. In addition, power generation is managed by entering into contracts to sell a portion of power forecasted to be generated. Contracts are entered into simultaneously to purchase the fuel required to generate the power to reduce exposure to market price volatility and effectively lock in positive margins. Each of these contracts provide economic hedges which, in some cases, do not meet the specific criteria required for hedge accounting treatment and therefore are recorded at their fair value based on forward market prices. Effective January 1, 2010, the unrealized losses from these contracts have been removed from Comparable EBITDA as they are not representative of amounts that will be realized on settlement of the contracts. Comparative amounts in 2009 were not material and therefore were not excluded from the computation of Comparable EBITDA.

Natural Gas Storage

Natural Gas Storage's Comparable EBITDA for first quarter 2010 was $51 million compared to $36 million for the same period in 2009. The $15 million increase in Comparable EBITDA in first quarter 2010 was primarily due to increased third party storage revenues as a result of higher realized seasonal natural gas price spreads. The seasonal nature of natural gas storage generally results in higher revenues in the winter season.

Comparable EBITDA excluded net unrealized losses of $21 million in first quarter 2010 (2009 - losses of $13 million) resulting from changes in the fair value of proprietary natural gas inventory in storage and natural gas forward purchase and sale contracts. TransCanada manages its proprietary natural gas storage earnings by simultaneously entering into a forward purchase of natural gas for injection into storage and an offsetting forward sale of natural gas for withdrawal at a later period, thereby locking in future positive margins and effectively eliminating exposure to price movements of natural gas. Fair value adjustments recorded in each period on proprietary natural gas held in storage and these forward contracts are not representative of the amounts that will be realized on settlement. The fair value of proprietary natural gas inventory held in storage has been measured using a weighted average of forward prices for the following four months less selling costs.

Other Income Statement Items

Interest Expense

(unaudited)                                     Three months ended March 31
(millions of dollars)                                   2010           2009
----------------------------------------------------------------------------

Interest on long-term debt(1)                            296            335
Other interest and amortization                           20             14
Capitalized interest                                    (134)           (54)
                                               -----------------------------
                                                         182            295
                                               -----------------------------
                                               -----------------------------

(1) Includes interest for Junior Subordinated Notes.

Interest Expense decreased $113 million to $182 million in first quarter 2010 from $295 million in first quarter 2009. The decrease reflected increased capitalized interest to finance the Company's larger capital growth program in 2010, primarily due to Keystone construction. Interest expense also decreased due to the positive impact of a weaker U.S. dollar on U.S. dollar-denominated interest in first quarter 2010.

Income Taxes decreased to $101 million in first quarter 2010 from $116 million in first quarter 2009 primarily due to lower earnings in first quarter 2010.

Liquidity and Capital Resources

TransCanada's financial position remains sound and consistent with recent years as does its ability to generate cash in the short and long term to provide liquidity, maintain financial capacity and flexibility, and to provide for planned growth. TransCanada's liquidity position remains solid, underpinned by predictable cash flow from operations, significant cash balances on hand from common and preferred share and debt issues, as well as committed revolving bank lines of US$1.0 billion, $2.0 billion, US$1.0 billion and US$300 million, maturing in November 2010, December 2012, December 2012 and February 2013, respectively. At March 31, 2010, draws of $812 million had been made on these facilities, which also support the Company's two commercial paper programs in Canada. In addition, TransCanada's proportionate share of capacity remaining available on committed bank facilities at TransCanada-operated affiliates was $140 million with maturity dates from 2010 through 2012. As at March 31, 2010, TransCanada had remaining capacity of $2.1 billion, $2.0 billion and US$4.0 billion under its equity, Canadian debt and U.S. debt shelf prospectuses, respectively. In lieu of making cash dividend payments, a portion of the declared common and preferred share dividends are expected to be paid in common shares issued under the Company's Dividend Reinvestment and Share Purchase Plan (DRP). TransCanada's liquidity, market and other risks are discussed further in the Risk Management and Financial Instruments section of this MD&A.

At March 31, 2010, the Company held Cash and Cash Equivalents of $736 million compared to $997 million at December 31, 2009. The decrease in Cash and Cash Equivalents was primarily due to capital expenditures, partially offset by cash generated by operations and proceeds from the issuance of preferred shares in first quarter 2010.

Operating Activities

Funds Generated from Operations(1)

                                                         Three months ended
(unaudited)                                                  March 31
(millions of dollars)                                   2010           2009
----------------------------------------------------------------------------

Cash Flows
 Funds generated from operations(1)                      723            766
 Decrease in operating working capital                   109             82
                                               -----------------------------
 Net cash provided by operations                         832            848
                                               -----------------------------
                                               -----------------------------

(1) Refer to the Non-GAAP Measures section in this MD&A for further
    discussion of Funds Generated from Operations.

Net Cash Provided by Operations and Funds Generated from Operations decreased $16 million and $43 million, respectively, for the three months ended March 31, 2010 compared to the same period in 2009, primarily due to a decrease in cash generated through earnings.

Investing Activities

TransCanada remains committed to executing its previously announced $22 billion capital expenditure program by the end of 2013. For the three months ended March 31, 2010, capital expenditures totalled $1.3 billion (2009 - $1.1 billion), primarily related to construction of Keystone and expenditures related to the expansion of the Alberta System, refurbishment and restart of Bruce A Units 1 and 2, and construction of Guadalajara.

Financing Activities

In March 2010, TransCanada completed a public offering of 14 million Series 3 cumulative redeemable first preferred shares, including the full exercise of an underwriters' over-allotment option of two million shares, under its September 2009 base shelf prospectus. The preferred shares were issued at $25 per share, resulting in gross proceeds of $350 million including the over-allotment option. The holders of the preferred shares are entitled to receive fixed cumulative dividends at an annual rate of $1.00 per share, payable quarterly, yielding four per cent per annum, for the initial five year period ending June 30, 2015, with the first dividend payment scheduled for June 30, 2010. The dividend rate will reset on June 30, 2015 and every five years thereafter to a yield per annum equal to the sum of the then five year Government of Canada bond yield and 1.28 per cent. The preferred shares are redeemable by TransCanada on or after June 30, 2015. The net proceeds of this offering are expected to be used to partially fund capital projects, for general corporate purposes and to repay short-term debt.

The Series 3 preferred shareholders will have the right to convert their shares into Series 4 cumulative redeemable first preferred shares on June 30, 2015 and on June 30 of every fifth year thereafter. The holders of Series 4 preferred shares will be entitled to receive quarterly floating rate cumulative dividends at a yield per annum equal to the sum of the then 90 day Government of Canada treasury bill rate and 1.28 per cent.

The Company is well positioned to fund its existing capital program through its growing internally-generated cash flow, its DRP and its continued access to capital markets. TransCanada will also continue to examine opportunities for portfolio management, including a greater role for PipeLines LP, in financing its capital program.

In the three months ended March 31, 2010, TransCanada issued $10 million (2009 - $3.1 billion), and retired $141 million (2009 - $482 million), of Long-Term Debt while Notes Payable increased $432 million (2009 - decreased $917 million).

Dividends

On April 29, 2010, TransCanada's Board of Directors declared a quarterly dividend of $0.40 per share for the quarter ending June 30, 2010 on the Company's outstanding common shares. It is payable on July 30, 2010 to shareholders of record at the close of business on June 30, 2010. In addition, quarterly dividends of $0.2875 and $0.3041 per preferred share were declared for Series 1 and Series 3 preferred shares, respectively, for the period ending June 30, 2010. The dividends are payable on June 30, 2010 to shareholders of record at the close of business on May 31, 2010.

TransCanada's Board of Directors approved the issuance of common shares from treasury at a three per cent discount under TransCanada's DRP for dividends payable on TransCanada's common and preferred shares, and TCPL's preferred shares. The Company reserves the right to alter the discount or return to fulfilling DRP participation by purchasing shares on the open market at any time. In the three months ended March 31, 2010, TransCanada issued 2.3 million (2009 - 2.1 million) common shares under its DRP, in lieu of making cash dividend payments of $78 million (2009 - $67 million).

Significant Accounting Policies and Critical Accounting Estimates

To prepare financial statements that conform with GAAP, TransCanada is required to make estimates and assumptions that affect both the amount and timing of recording assets, liabilities, revenues and expenses since the determination of these items may be dependent on future events. The Company uses the most current information available and exercises careful judgement in making these estimates and assumptions.

TransCanada's significant accounting policies and critical accounting estimates have remained unchanged since December 31, 2009. For further information on the Company's accounting policies and estimates refer to the MD&A in TransCanada's 2009 Annual Report.

Changes in Accounting Policies

The Company's accounting policies have not changed materially from those described in TransCanada's 2009 Annual Report. Future accounting changes that will impact the Company are as follows:

Future Accounting Changes

International Financial Reporting Standards

The Canadian Institute of Chartered Accountants' (CICA) Accounting Standards Board announced that Canadian publicly accountable enterprises are required to adopt International Financial Reporting Standards (IFRS), as issued by the International Accounting Standards Board (IASB), effective January 1, 2011. Effective January 1, 2011, the Company will begin reporting under IFRS.

TransCanada continues to progress its conversion project by scheduling training sessions and IFRS updates for employees and Directors, executing changes to information systems and business processes to accommodate IFRS accounting and reporting requirements, reviewing new IFRS developments and assessing the impact that significant differences between GAAP and IFRS will have on TransCanada.

TransCanada currently follows specific accounting policies unique to a rate-regulated business. The Company is actively monitoring developments regarding potential future guidance on the applicability of certain aspects of rate-regulated accounting under IFRS. Developments in this area could have a significant effect on the scope of the Company's IFRS project and on TransCanada's IFRS financial results. The Company is assessing the impact of developments related to the IASB's July 2009 Exposure Draft "Rate-Regulated Activities". Currently, TransCanada does not expect this Exposure Draft to be effective for 2011.

TransCanada actively monitors the IASB's schedule of projects, giving consideration to any proposed changes, where applicable, in its assessment of differences between IFRS and GAAP. As a result of ongoing developments related to rate-regulated accounting under IFRS as well as other areas, together with the current stage of the Company's IFRS project, TransCanada cannot reasonably quantify the full impact that adopting IFRS will have on its financial position and future results.

Contractual Obligations

There have been no material changes to TransCanada's contractual obligations from December 31, 2009 to March 31, 2010, including payments due for the next five years and thereafter. For further information on these contractual obligations, refer to the MD&A in TransCanada's 2009 Annual Report.

Financial Instruments and Risk Management

TransCanada continues to manage and monitor its exposure to market, counterparty credit and liquidity risk.

Counterparty Credit and Liquidity Risk

TransCanada's maximum counterparty credit exposure with respect to financial instruments at the balance sheet date, without taking into account security held, consisted of accounts receivable, the fair value of derivative assets and loans and advances receivable. The carrying amounts and fair values of these financial assets are included in Accounts Receivable and Other in the Non-Derivative Financial Instruments Summary table below. Letters of credit and cash are the primary types of security provided to support these amounts. The majority of counterparty credit exposure is with counterparties who are investment grade. At March 31, 2010, there were no significant amounts past due or impaired.

At March 31, 2010 the Company had a credit risk concentration of $339 million due from a creditworthy counterparty. This amount is expected to be fully collectible and is secured by a guarantee from the counterparty's parent company.

The Company continues to manage its liquidity risk by ensuring sufficient cash and credit facilities are available to meet its operating and capital expenditure obligations when due, under both normal and stressed economic conditions.

Natural Gas Inventory Price Risk

At March 31, 2010, the fair value of proprietary natural gas inventory held in storage, as measured using a weighted average of forward prices for the following four months less selling costs, was $54 million (December 31, 2009 - $73 million). The change in fair value of proprietary natural gas inventory in storage in the three months ended March 31, 2010 resulted in a net pre-tax unrealized loss of $24 million (2009 - loss of $23 million), which was recorded as a decrease to Revenues and Inventories. The net change in fair value of natural gas forward purchase and sale contracts in the three months ended March 31, 2010 resulted in a net pre-tax unrealized gain of $3 million (2009 - gain of $10 million), which was recorded as an increase to Revenues.

VaR Analysis

TransCanada uses a Value-at-Risk (VaR) methodology to estimate the potential impact from its exposure to market risk on its open liquid positions. VaR represents the potential change in pre-tax earnings over a given holding period. It is calculated assuming a 95 per cent confidence level that the daily change resulting from normal market fluctuations in its open positions will not exceed the reported VaR. Although losses are not expected to exceed the statistically estimated VaR on 95 per cent of occasions, losses on the other five per cent of occasions could be substantially greater than the estimated VaR. TransCanada's consolidated VaR was $6 million at March 31, 2010 (December 31, 2009 - $12 million). The decrease from December 31, 2009 was primarily due to decreased prices and lower open positions in the U.S. Power portfolio.

Net Investment in Self-Sustaining Foreign Operations

The Company hedges its net investment in self-sustaining foreign operations (on an after-tax basis) with U.S. dollar-denominated debt, cross-currency interest rate swaps, forward foreign exchange contracts and foreign exchange options. At March 31, 2010, the Company had designated as a net investment hedge U.S. dollar-denominated debt with a carrying value of $7.7 billion (US$7.6 billion) and a fair value of $8.0 billion (US$7.9 billion). At March 31, 2010, $158 million (December 31, 2009 - $96 million) was included in Intangibles and Other Assets for the fair value of forwards and swaps used to hedge the Company's net U.S. dollar investment in foreign operations.

The fair values and notional principal amounts for the derivatives designated as a net investment hedge were as follows:

Derivatives Hedging Net Investment in Self-Sustaining Foreign Operations

                                    March 31, 2010      December 31, 2009
                               ---------------------------------------------
                                            Notional               Notional
Asset/(Liability)                   Fair          or                     or
(unaudited)                        Value   Principal       Fair   Principal
(millions of dollars)                 (1)     Amount    Value(1)     Amount
----------------------------------------------------------------------------
U.S. dollar cross-currency swaps     140        U.S.         86        U.S.
 (maturing 2010 to 2014)                       2,000                  1,850
U.S. dollar forward foreign
 exchange contracts                   18        U.S.          9    U.S. 765
 (maturing 2010)                               1,030
U.S. dollar options
 (matured 2010)                        -           -          1    U.S. 100
                               ---------------------------------------------
                                     158        U.S.         96        U.S.
                                               3,030                  2,715
                               ---------------------------------------------
                               ---------------------------------------------

(1) Fair values equal carrying values.

Non-Derivative Financial Instruments Summary

The carrying and fair values of non-derivative financial instruments were
as follows:

                                   March 31, 2010        December 31, 2009
                               ---------------------------------------------
(unaudited)                     Carrying        Fair   Carrying        Fair
(millions of dollars)             Amount       Value     Amount       Value
----------------------------------------------------------------------------
Financial Assets(1)
Cash and cash equivalents            736         736        997         997
Accounts receivable and
 other(2)(3)                       1,363       1,402      1,432       1,483
Available-for-sale assets(2)          22          22         23          23
                               ---------------------------------------------
                                   2,121       2,160      2,452       2,503
                               ---------------------------------------------
                               ---------------------------------------------
Financial Liabilities(1)(3)
Notes payable                      2,087       2,087      1,687       1,687
Accounts payable and deferred
 amounts(4)                        1,638       1,638      1,538       1,538
Accrued interest                     319         319        377         377
Long-term debt                    16,213      19,208     16,664      19,377
Junior subordinated notes          1,005         987      1,036         976
Long-term debt of joint ventures     931       1,000        965       1,025
                               ---------------------------------------------
                                  22,193      25,239     22,267      24,980
                               ---------------------------------------------
                               ---------------------------------------------

(1) Consolidated Net Income in first quarter 2010 included losses of $7
    million (2009 - losses of $14 million) for fair value adjustments
    related to interest rate swap agreements on US$250 million (2009 -
    US$200 million) of long-term debt. There were no other unrealized gains
    or losses from fair value adjustments to the financial instruments.
(2) At March 31, 2010, the Consolidated Balance Sheet included financial
    assets of $912 million (December 31, 2009 - $966 million) in Accounts
    Receivable, $40 million in Other Current Assets (December 31, 2009 -
    nil) and $433 million (December 31, 2009 - $489 million) in Intangibles
    and Other Assets.
(3) Recorded at amortized cost, except for certain long-term debt which is
    adjusted to fair value. 
(4) At March 31, 2010, the Consolidated Balance Sheet included financial
    liabilities of $1,612 million (December 31, 2009 - $1,513 million) in
    Accounts Payable and $26 million (December 31, 2009 - $25 million) in
    Deferred Amounts.

Derivative Financial Instruments Summary

Information for the Company's derivative financial instruments, excluding hedges of the Company's net investment in self-sustaining foreign operations, is as follows:

March 31, 2010
(unaudited)
(all amounts in millions
 unless otherwise                    Natural       Oil    Foreign
 indicated)                    Power     Gas  Products   Exchange  Interest
----------------------------------------------------------------------------

Derivative Financial
Instruments Held for
Trading(1)
Fair Values(2)
 Assets                         $319    $178         -         $1       $26
 Liabilities                   $(251)  $(182)        -       $(12)     $(73)
Notional Values
 Volumes(3)
  Purchases                   16,661     112         -          -         -
  Sales                       17,657      99         -          -         -
 Canadian dollars                  -       -         -          -       838
 U.S. dollars                      -       -         -   U.S. 612      U.S.
                                                                      1,500

 Cross-currency                    -       -         - 47/U.S. 37         -

Net unrealized
 (losses)/gains in the
 three months ended
 March 31, 2010(4)              $(16)     $2         -          -       $(4)

Net realized
 gains/(losses) in the
 three months ended
 March 31, 2010(4)               $22    $(12)         -        $8       $(4)

Maturity dates                 2010-   2010-      2010      2010-     2010-
                                2015    2014                 2012      2018
Derivative Financial
Instruments in Hedging
Relationships(5)(6)
Fair Values(2)
 Assets                         $191       -         -          -       $10
 Liabilities                   $(313)   $(53)        -       $(48)     $(44)
Notional Values
 Volumes(3)
  Purchases                   15,819      31         -          -         -
  Sales                       12,385       -         -          -         -
 U.S. dollars                      -       -         -   U.S. 120      U.S.
                                                                      2,075
 Cross-currency                    -       -         -   136/U.S.         -
                                                              100

Net realized losses in the
 three months ended
 March 31, 2010(4)               $(7)    $(3)         -          -     $(10)

Maturity dates                 2010-   2010-        n/a      2010-    2010-
                                2015    2012                  2014     2020
                            ------------------------------------------------
                            ------------------------------------------------

(1) All derivative financial instruments in the held-for-trading
    classification have been entered into for risk management purposes and
    are subject to the Company's risk management strategies, policies and
    limits. These include derivatives that have not been designated as
    hedges or do not qualify for hedge accounting treatment but have been
    entered into as economic hedges to manage the Company's exposures to
    market risk.
(2) Fair values equal carrying values. 
(3) Volumes for power, natural gas and oil products derivatives are in GWh,
    billion cubic feet (Bcf) and thousands of barrels, respectively.
(4) Realized and unrealized gains and losses on power, natural gas and oil
    products derivative financial instruments held for trading are included
    in Revenues. Realized and unrealized gains and losses on interest rate
    and foreign exchange derivative financial instruments held for trading
    are included in Interest Expense and Interest Income and Other,
    respectively. The effective portion of unrealized gains and losses on
    derivative financial instruments in hedging relationships are initially
    recognized in Other Comprehensive Income, and are reclassified to
    Revenues, Interest Expense and Interest Income and Other, as
    appropriate, as the original hedged item settles.  
(5) All hedging relationships are designated as cash flow hedges except for
    interest rate derivative financial instruments designated as fair value
    hedges with a fair value of $7 million and a notional amount of US$150
    million. Net realized gains on fair value hedges for the three months
    ended March 31, 2010 were $1 million and were included in Interest
    Expense. In first quarter 2010, the Company did not record any amounts
    in Net Income related to ineffectiveness for fair value hedges.
(6) Net Income for the three months ended March 31, 2010 included losses of
    $8 million for changes in the fair value of power and natural gas cash
    flow hedges that were ineffective in offsetting the change in fair value
    of their related underlying positions. There were no gains or losses
    included in Net Income for the three months ended March 31, 2010 for
    discontinued cash flow hedges. No amounts have been excluded from the
    assessment of hedge effectiveness.


2009
(unaudited)
(all amounts in millions
 unless otherwise                    Natural       Oil    Foreign
 indicated)                    Power     Gas  Products   Exchange  Interest
----------------------------------------------------------------------------

Derivative Financial
Instruments Held for
Trading
Fair Values(1)(2)
 Assets                         $150    $107        $5          -       $25
 Liabilities                    $(98)  $(112)      $(5)      $(66)     $(68)
Notional Values(2)
 Volumes(3)
 Purchases                    15,275     238       180          -         -
 Sales                        13,185     194       180          -         -
 Canadian dollars                  -       -         -          -       574
 U.S. dollars                      -       -         -        U.S.      U.S.
                                                              444     1,325
 Cross-currency                    -       -         -   227/U.S.         -
                                                              157
Net unrealized
 gains/(losses) in the
 three months ended
 March 31, 2009(4)               $21    $(35)      $7          $1         -
Net realized
 gains/(losses) in the
 three months ended
 March 31, 2009(4)               $10     $26       $(3)        $6       $(4)

Maturity dates(2)              2010-   2010-      2010      2010-     2010-
                                2015    2014                 2012      2018

Derivative Financial
Instruments
in Hedging
Relationships(5)(6)
Fair Values(1)(2)
 Assets                         $175      $2         -          -       $15
 Liabilities                   $(148)   $(22)        -       $(43)     $(50)
Notional Values(2)
 Volumes(3)
 Purchases                    13,641      33         -          -         -
 Sales                        14,311       -         -          -         -
 U.S. dollars                      -       -         -        U.S.      U.S.
                                                              120     1,825
 Cross-currency                    -       -         -   136/U.S.         -
                                                              100
Net realized
 gains/(losses) in the
 three months ended
 March 31, 2009(4)               $26    $(10)        -          -       $(7)

Maturity dates(2)              2010-   2010-       n/a      2010-     2010-
                                2015    2014                2014       2020
                            ------------------------------------------------
                            ------------------------------------------------

(1) Fair values equal carrying values.
(2) As at December 31, 2009.
(3) Volumes for power, natural gas and oil products derivatives are in GWh,
    Bcf and thousands of barrels, respectively.
(4) Realized and unrealized gains and losses on power, natural gas and oil
    products derivative financial instruments held for trading are included
    in Revenues. Realized and unrealized gains and losses on interest rate
    and foreign exchange derivative financial instruments held for trading
    are included in Interest Expense and Interest Income and Other,
    respectively. The effective portion of unrealized gains and losses on
    derivative financial instruments in hedging relationships are initially
    recognized in Other Comprehensive Income, and are reclassified to
    Revenues, Interest Expense and Interest Income and Other, as
    appropriate, as the original hedged item settles.  
(5) All hedging relationships are designated as cash flow hedges except for
    interest rate derivative financial instruments designated as fair value
    hedges with a fair value of $4 million and a notional amount of US$150
    million at December 31, 2009. Net realized gains on fair value hedges
    for the three months ended March 31, 2009 were $1 million and were
    included in Interest Expense. In first quarter 2009, the Company did not
    record any amounts in Net Income related to ineffectiveness for fair
    value hedges. 
(6) Net Income for the three months ended March 31, 2009 included gains of
    $5 million for changes in the fair value of power and natural gas cash
    flow hedges that were ineffective in offsetting the change in fair value
    of their related underlying positions. There were no gains or losses
    included in Net Income for the three months ended March 31, 2009 for
    discontinued cash flow hedges. No amounts have been excluded from the
    assessment of hedge effectiveness.

Balance Sheet Presentation of Derivative Financial Instruments

The fair value of the derivative financial instruments in the Company's
Balance Sheet was as follows:

(unaudited)
(millions of                                                  December  31,
 dollars)                                     March 31, 2010           2009
----------------------------------------------------------------------------

Current
 Other current assets                                    460            315
 Accounts payable                                       (538)          (340)
Long-term
 Intangibles and other assets                            423            260
 Deferred amounts                                       (438)          (272)
                                             -------------------------------
                                             -------------------------------

Other Risks

Additional risks faced by the Company are discussed in the MD&A in TransCanada's 2009 Annual Report. These risks remain substantially unchanged since December 31, 2009.

Controls and Procedures

As of March 31, 2010, an evaluation was carried out under the supervision of, and with the participation of management, including the President and Chief Executive Officer and the Chief Financial Officer, of the effectiveness of TransCanada's disclosure controls and procedures as defined under the rules adopted by the Canadian securities regulatory authorities and by the SEC. Based on this evaluation, the President and Chief Executive Officer and the Chief Financial Officer concluded that the design and operation of TransCanada's disclosure controls and procedures were effective as at March 31, 2010.

During the recent fiscal quarter, there have been no changes in TransCanada's internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, TransCanada's internal control over financial reporting.

Outlook

Since the disclosure in TransCanada's 2009 Annual Report, the Company's earnings outlook for 2010 has declined due to the continued negative impact of reduced market prices for power on Energy's results. For further information on outlook, refer to the MD&A in TransCanada's 2009 Annual Report.

TransCanada's issuer rating assigned by Moody's Investors Service (Moody's) is Baa1 with a stable outlook. TCPL's senior unsecured debt is rated A with a stable outlook by DBRS, A3 with a stable outlook by Moody's and A- with a stable outlook by Standard and Poor's (S&P). DBRS and S&P have assigned ratings of Pfd-2 (low) and P-2, respectively, to TransCanada's cumulative redeemable first preferred shares, Series 1 and 3, and S&P has assigned TransCanada an A- long-term corporate credit rating with a stable outlook.

Recent Developments

Pipelines

Keystone

Construction on the first phase of Keystone is substantially complete and commissioning continued in first quarter 2010. Commercial in service of this segment is expected to occur in second quarter 2010. The first phase of Keystone extends from Hardisty, Alberta to serve markets in Wood River and Patoka, Illinois and has an initial nominal capacity of 435,000 barrels per day (Bbl/d). As part of the NEB's approval to begin operations, Keystone will operate at a reduced maximum operating pressure (MOP) which will reduce throughput capacity below initial nominal capacity. Within nine months from commercial in service, Keystone is required to run additional in-line inspections on the Canadian segment of the pipeline. These inspections, any remedial work and removal of the MOP restriction are expected to be completed within this nine month period.

Construction of the second phase of Keystone to expand nominal capacity to 591,000 Bbl/d and extend the pipeline to Cushing, Oklahoma, is expected to commence in second quarter 2010. Commercial in service of the second phase is expected to occur in first quarter 2011.

Keystone is planning to construct and operate an expansion and extension of the pipeline system that will provide additional capacity of 500,000 Bbl/d from Western Canada to the U.S. Gulf Coast in first quarter 2013. The Keystone expansion will extend from Hardisty, Alberta to a delivery point near existing terminals in Port Arthur, Texas. In March 2010, the NEB approved the Company's application to construct and operate the Canadian portion of the Keystone expansion. Permits for the U.S. portion of the expansion are expected in fourth quarter 2010. Construction of the expansion facilities is anticipated to commence in first quarter 2011 following the receipt of the remaining regulatory approvals.

The total capital cost of Keystone is expected to be approximately US$12 billion. Approximately US$6 billion has been spent to date with the remaining US$6 billion to be invested between now and the end of 2012. Capital costs related to the construction of Keystone are subject to capital cost risk-and-reward sharing mechanisms with its customers.

Although commercial in service is expected to occur in second quarter 2010, TransCanada expects Keystone to begin recording EBITDA in fourth quarter 2010 when the MOP restriction on the Canadian segment is expected to be removed, with EBITDA increasing through 2011, 2012 and 2013 as subsequent phases are placed in service. Based on current long-term commitments of 910,000 Bbl/d, Keystone is expected to generate EBITDA of approximately US$1.2 billion in 2013, its first full year of commercial operation serving both the U.S. Midwest and Gulf Coast markets. If volumes increase to 1.1 million Bbl/d, the full commercial design of the system, Keystone would generate approximately US$1.5 billion of annual EBITDA. In the future, Keystone can be economically expanded from 1.1 million Bbl/d to 1.5 million Bbl/d in response to additional market demand.

Three entities, each of which had entered into Transportation Service Agreements for the second phase of the Keystone pipeline, have filed separate Statements of Claim against certain of TransCanada's Keystone subsidiaries in the Alberta Court of Queen's Bench, seeking declaratory relief or alternatively, damages in varying amounts. Only one of these Statements of Claim has been served on the Keystone subsidiaries. The Company believes each of the claims to be without merit and will vigorously defend this action and the others if served.

Alberta System

In March 2010, TransCanada completed the final phase of the North Central Corridor natural gas pipeline. North Central Corridor consists of a 300 km (186 miles) pipeline and associated compression facilities on the northern section of the Alberta System. This project was completed ahead of schedule and under budget at a total capital cost of approximately $800 million.

In March 2010, the NEB approved TransCanada's application for approval to construct and operate the Groundbirch natural gas pipeline. Construction is scheduled to commence in July 2010 with completion anticipated in November 2010. The total capital cost of this project is estimated to be $200 million.

In April 2010, the NEB announced that it will hold a public hearing process on an application TransCanada filed in February 2010 for approval to construct and operate the Horn River project. The public hearing process is scheduled to begin in October 2010. Subject to regulatory approvals, the Horn River project is anticipated to commence operations in second quarter 2012 with a total capital cost of approximately $310 million.

NEB ROE Formula

In October 2009, the NEB issued a decision that the RH-2-94 Decision which has formed the basis of determining tolls for certain pipelines under NEB jurisdiction since January 1, 1995 would not continue to be in effect. The NEB stated that instead of a multi-pipeline approach, the cost of capital will be determined by negotiations between pipeline companies and their shippers or by the NEB if a pipeline company files a cost of capital application. This decision impacts certain NEB regulated pipelines including the Canadian Mainline, Alberta System, Foothills and TQM. TransCanada is working with customers and interested parties to determine the cost of capital to be used in calculating tolls for 2010 on the Alberta System, Foothills and TQM. Cost of Capital discussions with stakeholders on the Canadian Mainline will commence prior to termination of its existing settlement on December 31, 2011. If agreements cannot be reached, applications will be filed with the NEB requesting an appropriate return on capital.

In November 2009, the Canadian Association of Petroleum Producers (CAPP) and the Industrial Gas Users Association (IGUA) sought leave to appeal the October 2009 NEB decision to the Federal Court of Appeal and named the NEB as the sole respondent. In March 2010, the Federal Court of Appeal dismissed the motion filed by CAPP and IGUA.

Alaska Open Season

In March 2010, the U.S. Federal Energy Regulatory Commission (FERC) approved the open season for TransCanada and ExxonMobil's joint Alaska pipeline project. The open season will commence on April 30, 2010, and continue through July 30, 2010. There will be concurrent open seasons in Canada for those shippers seeking to access the pipeline in Alberta. Shippers will also have the opportunity to nominate deliveries on either the proposed pipeline to Alberta or the proposed pipeline to Valdez, Alaska. The results of the open season are expected to be available near the end of 2010.

Great Lakes Rate Case

In November 2009, the FERC commenced an investigation, alleging that, based on a review of certain historical information, Great Lakes' revenues might substantially exceed Great Lakes' actual cost of service and therefore may be unjust and unreasonable.

In April 2010, the Chief Administrative Law Judge (ALJ) granted a motion filed by Great Lakes to temporarily suspend the Great Lakes rate proceeding due to an agreement in principle which was reached among Great Lakes, active participants and the FERC trial staff. The parties anticipate filing an agreement embodying the settlement terms on or about May 17, 2010, for subsequent approval by the ALJ and the FERC. In the absence of a settlement, a hearing in the investigation is scheduled for early August 2010 and an initial decision by the ALJ is expected in November 2010. The Company does not expect the rate case settlement, if reached, will have a material effect on Great Lakes' revenues in the context of the current market environment.

Bison

In April 2010, the FERC issued a Certificate Order which requires certain submissions and approvals before approval for construction can be issued. Construction is expected to commence in second quarter 2010 with an expected in-service date of fourth quarter 2010. The project is expected to cost US$600 million.

Energy

Oakville

Advancement continues on the 900 MW Oakville power generating station located in Oakville, Ontario. In January 2010, TransCanada released a draft Environmental Review Report (ERR) for government agency and public comment, with a final ERR expected to be submitted to the Province of Ontario's Ministry of the Environment in second quarter 2010. TransCanada continues to work with the local community to address concerns and the project is anticipated to be in service in first quarter 2014.

Power Transmission Line Projects

TransCanada continues to review the results of the open seasons on the proposed Zephyr and Chinook power transmission line projects and expects to announce the results in second quarter 2010. Each project would be capable of delivering primarily wind-generated power from Wyoming (Zephyr) and Montana (Chinook) to Nevada to access California and other U.S. desert southwest markets.

Share Information

As at April 27, 2010, TransCanada had 687 million issued and outstanding common shares, and 22 million and 14 million issued and outstanding Series 1 and 3 first preferred shares, respectively. In addition, there were nine million outstanding options to purchase common shares, of which seven million were exercisable as at April 27, 2010.

Selected Quarterly Consolidated Financial Data(1)

(unaudited)
(millions of dollars
 except per share     2010            2009                      2008
 amounts)            First Fourth  Third Second  First Fourth  Third Second
----------------------------------------------------------------------------

Revenues             1,955  2,010  2,087  2,010  2,179  2,234  2,145  2,079

Net Income             303    387    345    314   334     277    390    324

Share Statistics

Net income per share
 - Basic             $0.43  $0.56  $0.50  $0.50 $0.54   $0.47  $0.67  $0.58

Net income per share
 - Diluted           $0.43  $0.56  $0.50  $0.50 $0.54   $0.46  $0.67  $0.58

Dividend declared
 per common share    $0.40  $0.38  $0.38  $0.38 $0.38   $0.36  $0.36  $0.36
                    --------------------------------------------------------
                    --------------------------------------------------------

(1) The selected quarterly consolidated financial data has been prepared in
    accordance with GAAP. Certain comparative figures have been restated to
    conform with the current year's presentation.

Factors Impacting Quarterly Financial Information

In Pipelines, which consists primarily of the Company's investments in regulated pipelines and regulated natural gas storage facilities, annual revenues and net income fluctuate over the long term based on regulators' decisions and negotiated settlements with shippers. Generally, quarter-over-quarter revenues and net income during any particular fiscal year remain relatively stable with fluctuations resulting from adjustments being recorded due to regulatory decisions and negotiated settlements with shippers, seasonal fluctuations in short-term throughput volumes on U.S. pipelines, acquisitions and divestitures, and developments outside of the normal course of operations.

In Energy, which consists primarily of the Company's investments in electrical power generation plants and non-regulated natural gas storage facilities, quarter-over-quarter revenues and net income are affected by seasonal weather conditions, customer demand, market prices, capacity payments, planned and unplanned plant outages, acquisitions and divestitures, certain fair value adjustments and developments outside of the normal course of operations.

Significant developments that impacted the last eight quarters' EBIT and Net Income are as follows:

- First quarter 2010, Energy's EBIT included net unrealized losses of $28 million pre-tax ($17 million after tax) resulting from changes in the fair value of certain U.S. Power derivative contracts. Energy's EBIT also included net unrealized losses of $21 million pre-tax ($15 million after tax) due to changes in the fair value of proprietary natural gas inventory in storage and natural gas forward purchase and sale contracts.

- Fourth quarter 2009, Pipelines' EBIT included a dilution gain of $29 million pre-tax ($18 million after tax) resulting from TransCanada's reduced ownership interest in PipeLines LP after PipeLines LP issued common units to the public. Energy's EBIT included net unrealized gains of $7 million pre-tax ($5 million after tax) due to changes in the fair value of proprietary natural gas inventory in storage and natural gas forward purchase and sale contracts. Net Income included $30 million of favourable income tax adjustments resulting from reductions in the Province of Ontario's corporate income tax rates.

- Third quarter 2009, Energy's EBIT included net unrealized gains of $14 million pre-tax ($10 million after tax) due to changes in the fair value of proprietary natural gas inventory in storage and natural gas forward purchase and sale contracts.

- Second quarter 2009, Energy's EBIT included net unrealized losses of $7 million pre-tax ($5 million after tax) due to changes in the fair value of proprietary natural gas inventory in storage and natural gas forward purchase and sale contracts. Energy's EBIT also included contributions from Portlands Energy, which was placed in service in April 2009, and the negative impact of Western Power's lower overall realized power prices.

- First quarter 2009, Energy's EBIT included net unrealized losses of $13 million pre-tax ($9 million after tax) due to changes in the fair value of proprietary natural gas inventory in storage and natural gas forward purchase and sale contracts.

- Fourth quarter 2008, Energy's EBIT included net unrealized gains of $7 million pre-tax ($6 million after tax) due to changes in the fair value of proprietary natural gas inventory in storage and natural gas forward purchase and sale contracts. Net Income included net unrealized losses of $57 million pre-tax ($39 million after tax) due to changes in the fair value of derivatives used to manage the Company's exposure to rising interest rates but which did not qualify as hedges for accounting purposes.

- Third quarter 2008, Energy's EBIT included contributions from the August 2008 acquisition of Ravenswood. Net Income included favourable income tax adjustments of $26 million from an internal restructuring and realization of losses.

- Second quarter 2008, Energy's EBIT included net unrealized gains of $12 million pre-tax ($8 million after tax) due to changes in the fair value of proprietary natural gas inventory in storage and natural gas forward purchase and sale contracts. In addition, Western Power's EBIT increased due to higher overall realized prices and market heat rates in Alberta.

Consolidated Income

(unaudited)                                             Three months ended
(millions of dollars except number of shares                 March 31
 and per share amounts)                                 2010           2009
----------------------------------------------------------------------------

Revenues                                               1,955          2,179
                                                      ----------------------

Operating and Other Expenses
Plant operating costs and other                          747            832
Commodity purchases resold                               256            229
Depreciation and amortization                            343            346
                                                      ----------------------
                                                       1,346          1,407
                                                      ----------------------

Financial Charges/(Income)
Interest expense                                         182            295
Interest expense of joint ventures                        16             14
Interest income and other                                (24)           (22)
                                                      ----------------------
                                                         174            287
                                                      ----------------------

Income before Income Taxes and Non-Controlling
Interests                                                435            485
                                                      ----------------------

Income Taxes
Current                                                   81             54
Future                                                    20             62
                                                      ----------------------
                                                         101            116
                                                      ----------------------

Non-Controlling Interests
Non-controlling interest in
PipeLines LP                                              22             24
Preferred share dividends of
 subsidiary                                                6              6
Non-controlling interest in Portland                       3              5
                                                      ----------------------
                                                          31             35
                                                      ----------------------

Net Income                                               303            334
Preferred Share Dividends                                  7              -
                                                      ----------------------
Net Income Applicable to Common Shares                   296            334
                                                      ----------------------
                                                      ----------------------

Net Income Per Share
Basic and Diluted                                      $0.43        $  0.54
                                                      ----------------------
                                                      ----------------------

Average Common Shares Outstanding (millions)
Basic                                                    686            618
Diluted                                                  687            619
                                                      ----------------------
                                                      ----------------------

See accompanying notes to the consolidated financial statements.


Consolidated Cash Flows
                                                        Three months ended
(unaudited)                                                   March 31
(millions of dollars)                                   2010           2009
----------------------------------------------------------------------------

Cash Generated From Operations
Net income                                               303            334
Depreciation and amortization                            343            346
Future income taxes                                       20             62
Non-controlling interests                                 31             35
Employee future benefits funding in excess of expense    (32)           (34)
Other                                                     58             23
                                                      ----------------------
                                                         723            766
Decrease in operating working capital                    109             82
                                                      ----------------------
Net cash provided by operations                          832            848
                                                      ----------------------
Investing Activities
Capital expenditures                                  (1,276)        (1,123)
Acquisitions, net of cash acquired                         -           (134)
Deferred amounts and other                              (216)          (175)
                                                      ----------------------
Net cash used in investing activities                 (1,492)        (1,432)
                                                      ----------------------
Financing Activities
Dividends on common and preferred shares                (188)          (156)
Distributions paid to non-controlling interests          (27)           (27)
Notes payable issued/(repaid), net                       432           (917)
Long-term debt issued, net of issue costs                 10          3,060
Reduction of long-term debt                             (141)          (482)
Long-term debt of joint ventures issued                    8             16
Reduction of long-term debt of joint ventures            (26)           (23)
Common shares issued                                       9             11
Preferred shares issued, net of issue costs              339              -
                                                      ----------------------
Net cash provided by financing
 activities                                              416          1,482
                                                      ----------------------
Effect of Foreign Exchange Rate Changes on Cash
 and Cash Equivalents                                    (17)            26
                                                      ----------------------
(Decrease)/Increase in Cash and Cash
 Equivalents                                            (261)           924
Cash and Cash Equivalents
Beginning of period                                      997          1,308
                                                      ----------------------
Cash and Cash Equivalents
End of period                                            736          2,232
                                                      ----------------------
                                                      ----------------------
Supplementary Cash Flow Information
Income taxes paid, net of refunds                          4             57
Interest paid                                            239            263
                                                      ----------------------
                                                      ----------------------

See accompanying notes to the consolidated financial statements.


Consolidated Balance Sheet

(unaudited)                                        March 31,   December 31,
(millions of dollars)                                   2010           2009
----------------------------------------------------------------------------

ASSETS
Current Assets
Cash and cash equivalents                                736            997
Accounts receivable                                      912            966
Inventories                                              463            511
Other                                                    799            701
                                                      ----------------------
                                                       2,910          3,175
Plant, Property and Equipment                         34,111         32,879
Goodwill                                               3,645          3,763
Regulatory Assets                                      1,459          1,524
Intangibles and Other Assets                           2,296          2,500
                                                      ----------------------
                                                      44,421         43,841
                                                      ----------------------
                                                      ----------------------

LIABILITIES AND SHAREHOLDERS' EQUITY
Current Liabilities
Notes payable                                          2,087          1,687
Accounts payable                                       2,605          2,195
Accrued interest                                         319            377
Current portion of long-term debt                        636            478
Current portion of long-term debt of joint ventures      206            212
                                                      ----------------------
                                                       5,853          4,949
Regulatory Liabilities                                   347            385
Deferred Amounts                                         912            743
Future Income Taxes                                    2,800          2,856
Long-Term Debt                                        15,577         16,186
Long-Term Debt of Joint Ventures                         725            753
Junior Subordinated Notes                              1,005          1,036
                                                      ----------------------
                                                      27,219         26,908
                                                      ----------------------
Non-Controlling Interests
Non-controlling interest in
PipeLines LP                                             686            705
Preferred shares of subsidiary                           389            389
Non-controlling interest in Portland                      81             80
                                                      ----------------------
                                                       1,156          1,174
                                                      ----------------------
Shareholders' Equity                                  16,046         15,759
                                                      ----------------------
                                                      44,421         43,841
                                                      ----------------------
                                                      ----------------------

See accompanying notes to the consolidated financial statements.


Consolidated Comprehensive Income

                                                        Three months ended
(unaudited)                                                  March 31
(millions of dollars)                                   2010           2009
----------------------------------------------------------------------------

Net Income Applicable to Common Shares                   296            334
                                                      ----------------------
Other Comprehensive (Loss)/Income, Net of
 Income Taxes
Change in foreign currency translation gains and
 losses on investments in foreign operations(1)         (147)           (38)
Change in gains and losses on hedges of
 investments in foreign operations(2)                     59              -
Change in gains and losses on derivative
 instruments designated as cash flow hedges(3)           (77)            27
Reclassification to net income of gains and
 losses on derivative instruments designated
 as cash flow hedges pertaining to prior
 periods(4)                                                1              4
                                                      ----------------------
Other Comprehensive (Loss)/Income                       (164)            (7)
                                                      ----------------------
Comprehensive Income                                     132            327
                                                      ----------------------
                                                      ----------------------

(1) Net of income tax expense of $30 million for the three months ended
    March 31, 2010 (2009 - $6 million recovery).
(2) Net of income tax expense of $26 million for the three months ended
    March 31, 2010 (2009 - $4 million expense).
(3) Net of income tax recovery of $57 million for the three months ended
    March 31, 2010 (2009 - $3 million recovery).
(4) Net of income tax expense of $1 million for the three months ended March
    31, 2010 (2009 - $1 million expense).

See accompanying notes to the consolidated financial statements.


Consolidated Accumulated Other Comprehensive (Loss)/Income

                                            Currency        Cash
(unaudited)                              Translation        Flow
(millions of dollars)                    Adjustments      Hedges      Total
----------------------------------------------------------------------------

Balance at December 31, 2009                    (592)        (40)      (632)
Change in foreign currency translation
 gains and losses on investments in
 foreign operations(1)                          (147)          -       (147)
Change in gains and losses on hedges of
 investments in foreign operations(2)             59           -         59
Change in gains and losses on derivative
 instruments designated as cash flow
 hedges(3)                                         -         (77)       (77)
Reclassification to net income of gains
 and losses on derivative instruments
 designated as cash flow hedges pertaining
 to prior periods(4)(5)                            -           1          1
                                         -----------------------------------
Balance at March 31, 2010                       (680)       (116)      (796)
                                         -----------------------------------
                                         -----------------------------------

----------------------------------------------------------------------------

Balance at December 31, 2008                    (379)        (93)      (472)
Change in foreign currency translation
 gains and losses on investments in
 foreign operations(1)                           (38)          -        (38)
Change in gains and losses on hedges of
 investments in foreign operations(2)              -           -          -
Changes in gains and losses on derivative
 instruments designated as cash flow
 hedges(3)                                         -          27         27
Reclassification to net income of gains
 and losses on derivative instruments
 designated as cash flow hedges pertaining         
 to prior periods(4)                               -           4          4
                                         -----------------------------------
Balance at March 31, 2009                       (417)        (62)      (479)
                                         -----------------------------------
                                         -----------------------------------

(1) Net of income tax expense of $30 million for the three months ended
    March 31, 2010 (2009 - $6 million recovery).
(2) Net of income tax expense of $26 million for the three months ended
    March 31, 2010 (2009 - $4 million expense).
(3) Net of income tax recovery of $57 million for the three months ended
    March 31, 2010 (2009 - $3 million recovery).
(4) Net of income tax expense of $1 million for the three months ended
    March 31, 2010 (2009 - $1 million expense).
(5) Losses related to cash flow hedges reported in Accumulated Other
    Comprehensive (Loss)/Income and expected to be reclassified to Net
    Income in the next 12 months are estimated to be $68 million ($35
    million, net of tax). These estimates assume constant commodity prices,
    interest rates and foreign exchange rates over time, however, the 
    amounts reclassified will vary based on the actual value of these 
    factors at the date of settlement.

See accompanying notes to the consolidated financial statements.


Consolidated Shareholders' Equity

(unaudited)                                     Three months ended March 31
(millions of dollars)                                   2010           2009
----------------------------------------------------------------------------

Common Shares
 Balance at beginning of period                       11,338          9,264
 Shares issued under dividend reinvestment plan           78             67
 Proceeds from shares issued on exercise of 
  stock options                                            9             11
                                                      ----------------------
 Balance at end of period                             11,425          9,342
                                                      ----------------------

Preferred Shares
 Balance at beginning of period                          539              -
 Proceeds from shares issued under public
 offering, net of issue costs                            342              -
                                                      ----------------------
 Balance at end of period                                881              -
                                                      ----------------------

Contributed Surplus
 Balance at beginning of period                          328            279
 Issuance of stock options                                 1              -
                                                      ----------------------
 Balance at end of period                                329            279
                                                      ----------------------

Retained Earnings
 Balance at beginning of period                        4,186          3,827
 Net income                                              303            334
 Common share dividends                                 (275)          (236)
 Preferred share dividends                                (7)             -
                                                      ----------------------
 Balance at end of period                              4,207          3,925
                                                      ----------------------

Accumulated Other Comprehensive (Loss)/Income
 Balance at beginning of period                         (632)          (472)
 Other comprehensive (loss)/income                      (164)            (7)
                                                      ----------------------
 Balance at end of period                               (796)          (479)
                                                      ----------------------
                                                       3,411          3,446
                                                      ----------------------

Total Shareholders' Equity                            16,046         13,067
                                                      ----------------------
                                                      ----------------------

See accompanying notes to the consolidated financial statements.

Notes to Consolidated Financial Statements

(Unaudited)

1. Significant Accounting Policies

The consolidated financial statements of TransCanada Corporation (TransCanada or the Company) have been prepared in accordance with Canadian generally accepted accounting principles (GAAP). The accounting policies applied are consistent with those outlined in TransCanada's annual audited Consolidated Financial Statements for the year ended December 31, 2009. These Consolidated Financial Statements reflect all normal recurring adjustments that are, in the opinion of management, necessary to present fairly the financial position and results of operations for the respective periods. These Consolidated Financial Statements do not include all disclosures required in the annual financial statements and should be read in conjunction with the 2009 audited Consolidated Financial Statements included in TransCanada's 2009 Annual Report. Unless otherwise indicated, "TransCanada" or "the Company" includes TransCanada Corporation and its subsidiaries. Amounts are stated in Canadian dollars unless otherwise indicated. Certain comparative figures have been reclassified to conform with the current year's presentation.

In Pipelines, which consists primarily of the Company's investments in regulated pipelines and regulated natural gas storage facilities, annual revenues and net income fluctuate over the long term based on regulators' decisions and negotiated settlements with shippers. Generally, quarter-over-quarter revenues and net income during any particular fiscal year remain relatively stable with fluctuations resulting from adjustments being recorded due to regulatory decisions and negotiated settlements with shippers, seasonal fluctuations in short-term throughput volumes on U.S. pipelines, acquisitions and divestitures, and developments outside of the normal course of operations.

In Energy, which consists primarily of the Company's investments in electrical power generation plants and non-regulated natural gas storage facilities, quarter-over-quarter revenues and net income are affected by seasonal weather conditions, customer demand, market prices, capacity payments, planned and unplanned plant outages, acquisitions and divestitures, certain fair value adjustments and developments outside of the normal course of operations.

In preparing these financial statements, TransCanada is required to make estimates and assumptions that affect both the amount and timing of recording assets, liabilities, revenues and expenses since the determination of these items may be dependent on future events. The Company uses the most current information available and exercises careful judgement in making these estimates and assumptions. In the opinion of management, these consolidated financial statements have been properly prepared within reasonable limits of materiality and within the framework of the Company's significant accounting policies.

2. Changes in Accounting Policies

The Company's accounting policies have not changed materially from those described in TransCanada's 2009 Annual Report. Future accounting changes that will impact the Company are as follows:

Future Accounting Changes

International Financial Reporting Standards

The Canadian Institute of Chartered Accountants' (CICA) Accounting Standards Board announced that Canadian publicly accountable enterprises are required to adopt International Financial Reporting Standards (IFRS), as issued by the International Accounting Standards Board (IASB), effective January 1, 2011. Effective January 1, 2011, the Company will begin reporting under IFRS.

TransCanada currently follows specific accounting policies unique to a rate-regulated business. The Company is actively monitoring developments regarding potential future guidance on the applicability of certain aspects of rate-regulated accounting under IFRS. Developments in this area could have a significant effect on the scope of the Company's IFRS project and on TransCanada's IFRS financial results. The Company is assessing the impact of developments related to the IASB's July 2009 Exposure Draft "Rate-Regulated Activities".

As a result of ongoing developments related to rate-regulated accounting under IFRS as well as other areas, together with the current stage of the Company's IFRS project, TransCanada cannot reasonably quantify the full impact that adopting IFRS will have on its financial position and future results.

3. Segmented Information

Three months ended
 March 31                Pipelines     Energy(1)   Corporate       Total
                     -------------------------------------------------------
(unaudited)(millions
of dollars)            2010   2009   2010  2009   2010  2009    2010   2009
----------------------------------------------------------------------------

Revenues              1,129  1,264    826   915      -     -   1,955  2,179
Plant operating
 costs and other       (361)  (393)  (360) (409)   (26)  (30)   (747)  (832)
Commodity purchases
 resold                   -      -   (256) (229)     -     -    (256)  (229)
Depreciation and
 amortization          (253)  (260)   (90)  (86)     -     -    (343)  (346)
                     -------------------------------------------------------
                        515    611    120   191    (26)  (30)    609    772
                     ----------------------------------------
                     ----------------------------------------
Interest expense                                                (182)  (295)
Interest expense of
 joint ventures                                                  (16)   (14)
Interest income and
 other                                                            24     22
Income taxes                                                    (101)  (116)
Non-controlling
 interests                                                       (31)   (35)
                                                              --------------
Net Income                                                       303    334
Preferred share
 dividends                                                        (7)     -
Net Income Applicable
 to Common Shares                                                296    334
                                                              --------------
                                                              --------------

(1) Effective January 1, 2010, the Company records net realized and
    unrealized gains and losses on derivatives used to purchase and sell
    power, natural gas and fuel oil in order to manage Energy's assets on a
    net basis in Revenues. Comparative results for 2009 reflect amounts
    reclassified from Commodity Purchases Resold to Revenues.


Total Assets

(unaudited)                                         March 31,   December 31,
(millions of dollars)                                   2010           2009
----------------------------------------------------------------------------

Pipelines                                             29,917         29,508
Energy                                                12,862         12,477
Corporate                                              1,642          1,856
                                                  --------------------------
                                                      44,421         43,841
                                                  --------------------------
                                                  --------------------------

4. Long-Term Debt

In the three months ended March 31, 2010, the Company capitalized interest related to capital projects of $134 million (2009 - $54 million).

5. Share Capital

Preferred Share Issue

In March 2010, TransCanada completed a public offering of 14 million Series 3 cumulative redeemable first preferred shares, including the full exercise of an underwriters' over-allotment option of two million shares, under its September 2009 base shelf prospectus. The preferred shares were issued at $25 per share, resulting in gross proceeds of $350 million including the over-allotment option. The holders of the preferred shares are entitled to receive fixed cumulative dividends at an annual rate of $1.00 per share, payable quarterly, yielding four per cent per annum, for the initial five year period ending June 30, 2015, with the first dividend payment scheduled for June 30, 2010. The dividend rate will reset on June 30, 2015 and every five years thereafter to a yield per annum equal to the sum of the then five year Government of Canada bond yield and 1.28 per cent. The preferred shares are redeemable by TransCanada on or after June 30, 2015. The net proceeds of this offering are expected to be used to partially fund capital projects, for general corporate purposes and to repay short-term debt.

The Series 3 preferred shareholders will have the right to convert their shares into Series 4 cumulative redeemable first preferred shares on June 30, 2015 and on June 30 of every fifth year thereafter. The holders of Series 4 preferred shares will be entitled to receive quarterly floating rate cumulative dividends at a yield per annum equal to the sum of the then 90 day Government of Canada treasury bill rate and 1.28 per cent.

Dividend Reinvestment and Share Purchase Plan

In the three months ended March 31, 2010, TransCanada issued 2.3 million common shares (2009 - 2.1 million) under its Dividend Reinvestment and Share Purchase Plan (DRP), in lieu of making cash dividend payments totalling $78 million (2009 - $67 million). The dividends under the DRP were paid with common shares issued from treasury.

6. Financial Instruments and Risk Management

TransCanada continues to manage and monitor its exposure to market, counterparty credit and liquidity risk.

Counterparty Credit and Liquidity Risk

TransCanada's maximum counterparty credit exposure with respect to financial instruments at the balance sheet date, without taking into account security held, consisted of accounts receivable, the fair value of derivative assets and loans and advances receivable. The carrying amounts and fair values of these financial assets are included in Accounts Receivable and Other in the Non-Derivative Financial Instruments Summary table below. Letters of credit and cash are the primary types of security provided to support these amounts. The majority of counterparty credit exposure is with counterparties who are investment grade. At March 31, 2010, there were no significant amounts past due or impaired.

At March 31, 2010 the Company had a credit risk concentration of $339 million due from a creditworthy counterparty. This amount is expected to be fully collectible and is secured by a guarantee from the counterparty's parent company.

The Company continues to manage its liquidity risk by ensuring sufficient cash and credit facilities are available to meet its operating and capital expenditure obligations when due, under both normal and stressed economic conditions.

Natural Gas Inventory Price Risk

At March 31, 2010, the fair value of proprietary natural gas inventory held in storage, as measured using a weighted average of forward prices for the following four months less selling costs, was $54 million (December 31, 2009 - $73 million). The change in fair value of proprietary natural gas inventory in storage in the three months ended March 31, 2010 resulted in a net pre-tax unrealized loss of $24 million (2009 - loss of $23 million), which was recorded as a decrease to Revenues and Inventories. The net change in fair value of natural gas forward purchase and sale contracts in the three months ended March 31, 2010 resulted in a net pre-tax unrealized gain of $3 million (2009 - gain of $10 million), which was recorded as an increase to Revenues.

VaR Analysis

TransCanada uses a Value-at-Risk (VaR) methodology to estimate the potential impact from its exposure to market risk on its open liquid positions. VaR represents the potential change in pre-tax earnings over a given holding period. It is calculated assuming a 95 per cent confidence level that the daily change resulting from normal market fluctuations in its open positions will not exceed the reported VaR. Although losses are not expected to exceed the statistically estimated VaR on 95 per cent of occasions, losses on the other five per cent of occasions could be substantially greater than the estimated VaR. TransCanada's consolidated VaR was $6 million at March 31, 2010 (December 31, 2009 - $12 million). The decrease from December 31, 2009 was primarily due to decreased prices and lower open positions in the U.S. Power portfolio.

Net Investment in Self-Sustaining Foreign Operations

The Company hedges its net investment in self-sustaining foreign operations (on an after-tax basis) with U.S. dollar-denominated debt, cross-currency interest rate swaps, forward foreign exchange contracts and foreign exchange options. At March 31, 2010, the Company had designated as a net investment hedge U.S. dollar-denominated debt with a carrying value of $7.7 billion (US$7.6 billion) and a fair value of $8.0 billion (US$7.9 billion). At March 31, 2010, $158 million (December 31, 2009 - $96 million) was included in Intangibles and Other Assets for the fair value of forwards and swaps used to hedge the Company's net U.S. dollar investment in foreign operations.

The fair values and notional principal amounts for the derivatives designated as a net investment hedge were as follows:

Derivatives Hedging Net Investment in Self-Sustaining Foreign Operations

                                        March 31, 2010    December 31, 2009
                                 -------------------------------------------
                                              Notional             Notional
Asset/(Liability)                                   or                   or
(unaudited)                          Fair    Principal    Fair    Principal
(millions of dollars)             Value(1)      Amount Value(1)      Amount
----------------------------------------------------------------------------

U.S. dollar cross-currency
 swaps (maturing 2010 to 2014)        140   U.S. 2,000      86    U.S.1,850
U.S. dollar forward foreign
 exchange contracts
 (maturing 2010)                       18   U.S. 1,030       9     U.S. 765
U.S. dollar options
 (matured 2010)                         -            -       1     U.S. 100
                                 -------------------------------------------
                                      158   U.S. 3,030      96   U.S. 2,715
                                 -------------------------------------------
                                 -------------------------------------------

(1) Fair values equal carrying values.


Non-Derivative Financial Instruments Summary

The carrying and fair values of non-derivative financial instruments were
as follows:

                                         March 31, 2010   December 31, 2009
                                     ---------------------------------------
(unaudited)                          Carrying      Fair  Carrying      Fair
(millions of dollars)                  Amount     Value    Amount     Value
----------------------------------------------------------------------------

Financial Assets(1)
Cash and cash equivalents                 736       736       997       997
Accounts receivable and other(2)(3)     1,363     1,402     1,432     1,483
Available-for-sale assets(2)               22        22        23        23
                                 -------------------------------------------
                                        2,121     2,160     2,452     2,503
                                 -------------------------------------------
                                 -------------------------------------------

Financial Liabilities(1)(3)
Notes payable                           2,087     2,087     1,687     1,687
Accounts payable and deferred
 amounts(4)                             1,638     1,638     1,538     1,538
Accrued interest                          319       319       377       377
Long-term debt                         16,213    19,208    16,664    19,377
Junior subordinated notes               1,005       987     1,036       976
Long-term debt of joint ventures          931     1,000       965     1,025
                                 -------------------------------------------
                                       22,193    25,239    22,267    24,980
                                 -------------------------------------------
                                 -------------------------------------------

(1) Consolidated Net Income in first quarter 2010 included losses of $7
    million (2009 - losses of $14 million) for fair value adjustments
    related to interest rate swap agreements on US$250 million (2009 -
    US$200 million) of long-term debt. There were no other unrealized gains
    or losses from fair value adjustments to the financial instruments.
(2) At March 31, 2010, the Consolidated Balance Sheet included financial
    assets of $912 million (December 31, 2009 - $966 million) in Accounts
    Receivable, $40 million in Other Current Assets (December 31, 2009 -
    nil) and $433 million (December 31, 2009 - $489 million) in Intangibles
    and Other Assets.
(3) Recorded at amortized cost, except for certain long-term debt which is
    adjusted to fair value.
(4) At March 31, 2010, the Consolidated Balance Sheet included financial
    liabilities of $1,612 million (December 31, 2009 - $1,513 million) in
    Accounts Payable and $26 million (December 31, 2009 - $25 million) in
    Deferred Amounts.


Derivative Financial Instruments Summary

Information for the Company's derivative financial instruments, excluding
hedges of the Company's net investment in self-sustaining foreign
operations, is as follows:

March 31, 2010
(unaudited)
(all amounts in
 millions unless                Natural       Oil       Foreign 
 otherwise indicated)  Power        Gas  Products      Exchange    Interest
----------------------------------------------------------------------------

Derivative Financial
 Instruments
 Held for Trading(1)
Fair Values(2)
 Assets                $319       $178         -            $1         $26
 Liabilities          $(251)     $(182)        -          $(12)       $(73)
Notional Values
 Volumes(3)
  Purchases           16,661        112         -             -           -
  Sales               17,657         99         -             -           -
 Canadian dollars          -          -         -             -         838
 U.S. dollars              -          -         -      U.S. 612  U.S. 1,500
 Cross-currency            -          -         -    47/U.S. 37           -
Net unrealized
 (losses)/gains in
 the three months
 ended March 31, 
 2010(4)                $(16)        $2         -             -         $(4)

Net realized
 gains/(losses) in
 the three months
 ended March 31,
 2010(4)                 $22       $(12)        -            $8         $(4)

Maturity dates     2010-2015  2010-2014      2010     2010-2012   2010-2018


Derivative Financial
 Instruments
 in Hedging
 Relationships(5)(6)
Fair Values(2)
 Assets                 $191          -         -             -         $10
 Liabilities           $(313)      $(53)        -          $(48)       $(44)
Notional Values
 Volumes(3)
  Purchases           15,819         31         -             -           -
  Sales               12,385          -         -             -           -
 U.S. dollars              -          -         -      U.S. 120  U.S. 2,075
 Cross-currency            -          -         -  136/U.S. 100           -
Net realized losses
 in the three months
 ended March 31,
 2010(4)                 $(7)       $(3)        -             -        $(10)

Maturity dates     2010-2015  2010-2012       n/a     2010-2014   2010-2020
                  ----------------------------------------------------------
                  ----------------------------------------------------------

(1) All derivative financial instruments in the held-for-trading
    classification have been entered into for risk management purposes and
    are subject to the Company's risk management strategies, policies and
    limits. These include derivatives that have not been designated as
    hedges or do not qualify for hedge accounting treatment but have been
    entered into as economic hedges to manage the Company's exposures to
    market risk.
(2) Fair values equal carrying values.
(3) Volumes for power, natural gas and oil products derivatives are in GWh,
    billion cubic feet (Bcf) and thousands of barrels, respectively.
(4) Realized and unrealized gains and losses on power, natural gas and oil
    products derivative financial instruments held for trading are included
    in Revenues. Realized and unrealized gains and losses on interest rate
    and foreign exchange derivative financial instruments held for trading
    are included in Interest Expense and Interest Income and Other,
    respectively. The effective portion of unrealized gains and losses on
    derivative financial instruments in hedging relationships are initially
    recognized in Other Comprehensive Income, and are reclassified to
    Revenues, Interest Expense and Interest Income and Other, as
    appropriate, as the original hedged item settles.
(5) All hedging relationships are designated as cash flow hedges except for
    interest rate derivative financial instruments designated as fair value
    hedges with a fair value of $7 million and a notional amount of US$150
    million. Net realized gains on fair value hedges for the three months
    ended March 31, 2010 were $1 million and were included in Interest
    Expense. In first quarter 2010, the Company did not record any amounts
    in Net Income related to ineffectiveness for fair value hedges.
(6) Net Income for the three months ended March 31, 2010 included losses of
    $8 million for changes in the fair value of power and natural gas cash
    flow hedges that were ineffective in offsetting the change in fair value
    of their related underlying positions. There were no gains or losses
    included in Net Income for the three months ended March 31, 2010 for
    discontinued cash flow hedges. No amounts have been excluded from the
    assessment of hedge effectiveness.


2009
(unaudited)
(all amounts in
 millions         
 unless otherwise               Natural       Oil       Foreign 
 indicated)            Power        Gas  Products      Exchange    Interest 
----------------------------------------------------------------------------

Derivative
 Financial
 Instruments
 Held for Trading
Fair Values(1)(2)
 Assets                 $150       $107        $5             -         $25
 Liabilities            $(98)     $(112)      $(5)         $(66)       $(68)
Notional
 Values(2)
 Volumes(3)
  Purchases           15,275        238       180             -           -
  Sales               13,185        194       180             -           -
 Canadian dollars          -          -         -             -         574
 U.S. dollars              -          -         -      U.S. 444  U.S. 1,325
 Cross-currency            -          -         -  227/U.S. 157           -

Net unrealized
 gains/(losses)
 in the three
 months ended
 March 31,
 2009(4)                $ 21       $(35)       $7            $1           -
Net realized
 gains/(losses)
 in the three
 months ended
 March 31,
 2009(4)                 $10        $26       $(3)           $6         $(4)

Maturity
 dates(2)          2010-2015  2010-2014      2010     2010-2012   2010-2018

Derivative
 Financial
 Instruments
 in Hedging
 Relationships(5)(6)
Fair Values(1)(2)
 Assets                 $175         $2         -             -         $15
 Liabilities           $(148)      $(22)        -          $(43)       $(50)
Notional
 Values(2)
 Volumes(3)
  Purchases           13,641         33         -             -           -
  Sales               14,311          -         -             -           -
 U.S. dollars              -          -         -      U.S. 120  U.S. 1,825
 Cross-currency            -          -         -  136/U.S. 100           -

Net realized
 gains/(losses)
 in the three
 months ended
 March 31,
 2009(4)                 $26       $(10)        -             -         $(7)

Maturity dates(2)  2010-2015  2010-2014       n/a     2010-2014   2010-2020
                  ----------------------------------------------------------
                  ----------------------------------------------------------

(1) Fair values equal carrying values.
(2) As at December 31, 2009.
(3) Volumes for power, natural gas and oil products derivatives are in GWh,
    Bcf and thousands of barrels, respectively.
(4) Realized and unrealized gains and losses on power, natural gas and oil
    products derivative financial instruments held for trading are included
    in Revenues. Realized and unrealized gains and losses on interest rate
    and foreign exchange derivative financial instruments held for trading
    are included in Interest Expense and Interest Income and Other,
    respectively. The effective portion of unrealized gains and losses on
    derivative financial instruments in hedging relationships are initially
    recognized in Other Comprehensive Income, and are reclassified to
    Revenues, Interest Expense and Interest Income and Other, as 
    appropriate, as the original hedged item settles.
(5) All hedging relationships are designated as cash flow hedges except
    for interest rate derivative financial instruments designated as fair
    value hedges with a fair value of $4 million and a notional amount of
    US$150 million at December 31, 2009. Net realized gains on fair value
    hedges for the three months ended March 31, 2009 were $1 million and
    were included in Interest Expense. In first quarter 2009, the Company
    did not record any amounts in Net Income related to ineffectiveness for
    fair value hedges.
(6) Net Income for the three months ended March 31, 2009 included gains of
    $5 million for changes in the fair value of power and natural gas cash
    flow hedges that were ineffective in offsetting the change in fair
    value of their related underlying positions. There were no gains or
    losses included in Net Income for the three months ended March 31, 2009
    for discontinued cash flow hedges. No amounts have been excluded from
    the assessment of hedge effectiveness.


Balance Sheet Presentation of Derivative Financial Instruments

The fair value of the derivative financial instruments in the Company's
Balance Sheet was as follows:

(unaudited)
(millions of                                        March 31,   December 31,
 dollars)                                               2010           2009
----------------------------------------------------------------------------

Current
 Other current assets                                    460            315
 Accounts payable                                       (538)          (340)

Long-term
 Intangibles and other assets                            423            260
 Deferred amounts                                       (438)          (272)
                                                ----------------------------
                                                ----------------------------

Fair Value Hierarchy

The Company's financial assets and liabilities recorded at fair value have been categorized into three categories based on a fair value hierarchy. Fair value of assets and liabilities included in Level I is determined by reference to quoted prices in active markets for identical assets and liabilities. Assets and liabilities in Level II include valuations using inputs other than quoted prices for which all significant outputs are observable, either directly or indirectly. This category includes fair value determined using valuation techniques, such as option pricing models and extrapolation using observable inputs. Level III valuations are based on inputs that are not readily observable and are significant to the overall fair value measurement. Long-dated commodity transactions in certain markets and the fair value of guarantees are included in this category. Long-dated commodity prices are derived with a third-party modelling tool that uses market fundamentals to derive long-term prices. The fair value of guarantees is estimated by discounting the cash flows that would be incurred if letters of credit were used in place of the guarantees.

Financial assets and liabilities measured at fair value as of March 31, 2010, including both current and non-current portions, are categorized as follows. There were no transfers between Level I and Level II in first quarter 2010.

                             Quoted  Significant
                             Prices        Other   Significant
(unaudited)               in Active   Observable  Unobservable
(millions of dollars,       Markets       Inputs        Inputs
 pre-tax)                  (Level I)  (Level II)    (Level III)       Total
----------------------------------------------------------------------------

Natural Gas Inventory             -           54             -           54
Derivative Financial
 Instruments:
 Assets                         137          742            19          898
 Liabilities                   (205)        (762)          (24)        (991)
Available-for-sale
  assets                         22            -             -           22
Guarantee Liabilities(1)          -            -            (9)          (9)
                         ---------------------------------------------------
                                (46)          34           (14)         (26)
                         ---------------------------------------------------
                         ---------------------------------------------------

(1) The fair value of guarantees is included in Deferred Amounts.


The following table presents the net change in financial assets and
liabilities measured at fair value and included in the Level III fair value
category:

(unaudited)
(millions of dollars, pre-tax)  Derivatives(1)  Guarantees(2)         Total
----------------------------------------------------------------------------

Balance at December 31, 2009               (2)            (9)           (11)
New contracts(3)                          (10)             -            (10)
Settlements                                (1)             -             (1)
Transfers out of Level III                 (5)             -             (5)
Change in unrealized gains
 recorded in Net Income                     5              -              5
Change in unrealized gains
 recorded in Other
 Comprehensive Income                       8              -              8
                                 -------------------------------------------
Balance at March 31, 2010                  (5)            (9)           (14)
                                 -------------------------------------------
                                 -------------------------------------------

(1) The fair value of derivative assets and liabilities is presented on a
    net basis.
(2) The fair value of guarantees is included in Deferred Amounts. No
    amounts were recognized in Net Income for the periods presented.
(3) The total amount of net losses included in Net Income attributable to
    derivatives that were entered into during the period and still held at
    the reporting date is $1 million for the three months ended March 31,
    2010.

A 10 per cent increase or 10 per cent decrease in commodity prices, with all other variables held constant, would cause a $20 million decrease or a $20 million increase, respectively, in the fair value of derivative financial instruments included in Level III and outstanding as at March 31, 2010.

A 100 basis points increase or 100 basis points decrease in the letter of credit rate, with all other variables held constant, would cause a $5 million increase or a $5 million decrease, respectively, in the fair value of guarantee liabilities outstanding as at March 31, 2010. Similarly, the effect of a 100 basis points increase or 100 basis points decrease in the discount rate on the fair value of guarantee liabilities outstanding as at March 31, 2010 would cause a $1 million decrease in the liability or a $1 million increase in the liability, respectively.

7. Employee Future Benefits

The net benefit plan expense for the Company's defined benefit pension plans and other post-employment benefit plans is as follows:

                                       Pension Benefit        Other Benefit
Three months ended March 31                 Plans                Plans
                                     ---------------------------------------
(unaudited)(millions of dollars)        2010      2009       2010      2009
----------------------------------------------------------------------------

Current service cost                      12        11          -         -
Interest cost                             23        23          2         2
Expected return on plan assets           (27)      (25)         -         -
Amortization of net actuarial
 loss                                      2         1          -         -
Amortization of past service
 costs                                     1         1          -         -
                                     ---------------------------------------
Net benefit cost recognized               11        11          2         2
                                     ---------------------------------------
                                     ---------------------------------------

8. Contingencies

Amounts received under the Bruce B floor price mechanism in any year are subject to repayment if spot prices exceed the floor price. With respect to 2010, TransCanada currently expects spot prices to be less than the floor price for the remainder of the year, therefore, no amounts recorded in revenues in the first three months of 2010 are expected to be repaid.

9. Subsequent Events

Subsequent events have been assessed up to April 29, 2010, which is the date the financial statements were available for issuance.

TransCanada welcomes questions from shareholders and potential investors. Please telephone:

Investor Relations, at (800) 361-6522 (Canada and U.S. Mainland) or direct dial David Moneta/Myles Dougan/Terry Hook at (403) 920-7911. The investor fax line is (403) 920-2457. Media Relations: Terry Cunha/Cecily Dobson (403) 920-7859 or (800) 608-7859.

Visit the TransCanada website at: http://www.transcanada.com.

TransCanada
Media Inquiries
Cecily Dobson/Terry Cunha
403.920.7859 or 1.800.608.7859
or
Analyst Inquiries
David Moneta/Myles Dougan/Terry Hook
403.920.7911 or 1.800.361.6522
www.transcanada.com