TransAlta Investor Day Highlights Solid Foundation and Attractive Growth to 2029 and Beyond

TransAlta Investor Day Highlights Solid Foundation and Attractive Growth to 2029 and Beyond

TransAlta Corporation (TransAlta or the Company) (TSX: TA) (NYSE: TAC) is pleased to host its 2026 Investor Day today, in Toronto and virtually. A subset of TransAlta’s executive leadership team will discuss the Company’s outlook for the Alberta power market, along with its strategic priorities, financial position, and long-term path for rateable, attractive growth.

“TransAlta is well positioned to grow in our core geographies where our existing assets, optimization capabilities and development platforms give us a clear advantage,” said John Kousinioris, President and Chief Executive Officer of TransAlta. “We expect the Alberta market to recover meaningfully through the end of the decade as demand growth increases, including with data centre load coming to the province. Our assets are best positioned to capture the growth, including through our recently announced MOU to advance a development project to exclusively provide power and land to serve CPP Investments and Brookfield’s data centre. As I transition into my retirement, I am confident in our repositioned and resilient base business, embedded upside, strategy and team that will ensure continued execution,” concluded Mr. Kousinioris.

“The outlook for power has never been stronger, and existing generation will play a critical role to fulfill growing reliability requirements,” said Joel Hunter, Executive Vice President, Finance, Chief Financial Officer and Incoming President and Chief Executive Officer. “Our strategic priorities are focused. We aim to maximize value from our base business, while selectively investing in growth opportunities that enhance contracted cash flows and long‑term optionality.”

“We are focused on the successful execution of our Alberta data centre and Centralia opportunities, which we believe offer the most attractive returns for the Company. We will also continue to develop a refined, high-quality project pipeline, for capital deployment later in the decade while actively pursuing strategic M&A that enhances our footprint. As we look out to 2029, we expect meaningful Adjusted EBITDA and free cash flow growth which sets the Company up for the long-term,” concluded Mr. Hunter.

Investor Day and Webcast
The formal presentation will commence at 9:00 a.m. Eastern Time. The presentation will be broadcast live via webcast with video and will be accessible by web browser. The recorded video webcast and corresponding presentation will also be made available on the Investor Centre section of TransAlta’s website at http://www.transalta.com/investors/events-and-presentations following the event.

Webcast attendees can register to receive web access information for the live event below. Registration for the webcast can also be found in the Investor Centre of TransAlta’s website.

2026 Investor Day Webcast Registration Link:
https://reg.lumiengage.com/transalta/registration/Site/Register

Event details:
TransAlta 2026 Investor Day
March 23, 2026
Start time: 9:00 a.m. ET / 7:00 a.m. MT

About TransAlta Corporation:
TransAlta is one of Canada’s largest publicly traded power generators, delivering reliable electricity across Canada, the United States and Western Australia. For more than 100 years, our people have safely operated and evolved essential energy infrastructure that powers customers and communities. Our technology-diverse portfolio and disciplined execution allow us to deliver dependable power across evolving energy systems. We take a practical, responsible approach to meeting today’s energy needs while building for what comes next.

For more information about TransAlta, visit our web site at transalta.com.

Cautionary Statement Regarding Forward-Looking Information
This news release includes “forward-looking information,” within the meaning of applicable Canadian securities laws, and “forward-looking statements,” within the meaning of applicable United States securities laws, including the Private Securities Litigation Reform Act of 1995 (collectively referred to herein as “forward-looking statements”). Forward-looking statements are not facts, but only predictions and generally can be identified by the use of statements that include phrases such as “may”, “will”, “believe”, “expect”, “estimate”, “anticipate”, “intend”, “plan”, “forecast”, “continue” or other similar words. In particular, this news release contains forward-looking statements about the following, among other things: things: the Company’s views of the Alberta power market to the end of the decade and the Company’s advantage to capture such growth and the Company’s expectations that it will experience meaningful Adjusted EBITDA and free cash flow growth to 2029.

Forward-looking statements in this news release are intended to provide the reader information about management’s current expectations and plans and readers are cautioned that such information may not be appropriate for other purposes. Forward-looking statements are subject to important risks and uncertainties and are based on certain key assumptions. All forward-looking statements reflect TransAlta’s beliefs and assumptions based on information available at the time the statements were made and as such are not guarantees of future performance. As actual results could vary significantly from the forward-looking statements, you should not put undue reliance on forward-looking statements and should not use such forward looking statements for anything other than their intended purpose. We do not update our forward-looking statements due to new information or future events, unless we are required to by law. For additional information on the assumptions made, and the risks and uncertainties which could cause actual results to differ from the anticipated results, refer to our 2025 Integrated Report, including the section titled “Governance and Risk Management” in our MD&A for the year ended December 31, 2025, filed under TransAlta’s profile on SEDAR+ at www.sedarplus.ca and with the U.S. Securities and Exchange Commission at www.sec.gov.

Non-IFRS and Supplementary Financial Measures
This news release contains references to the following Non-IFRS measures: Adjusted EBITDA and Free Cash Flow (FCF). Non-IFRS measures do not have standardized meanings under IFRS and are unlikely to be comparable to similar measures presented by other companies and should not be viewed in isolation from, as an alternative to, or more meaningful than, our IFRS results. We use these measures to evaluate our performance and the performance of our business segments and believe that these measures, read together with our IFRS measures, provide readers with a better understanding of how management assesses results. Presenting these measures from period to period provides management and investors with the ability to evaluate earnings (loss) trends more readily in comparison to prior periods’ results. These measures are calculated by adjusting certain IFRS measures for certain items we believe are not reflective of our ongoing operations in a period and are calculated on a consistent basis from period to period and are adjusted for specific items in each period, unless stated otherwise. Refer to the Non-IFRS and Supplementary Measures section of our most recent MD&A, for more information about these measures including, where applicable, reconciliations to measures calculated in accordance with IFRS.

For more information:

Investor Inquiries:Media Inquiries:
Phone: 1-800-387-3598 in Canada and U.S.Phone: 1-855-255-9184
Email: [email protected]Email: [email protected]

Department of Energy Mandates Centralia Unit 2 Remain Available for Operation for Additional 90 Days

Department of Energy Mandates Centralia Unit 2 Remain Available for Operation for Additional 90 Days

TransAlta Corporation (TransAlta or the Company) (TSX: TA) (NYSE: TAC) confirms that its subsidiary, TransAlta Centralia Generation LLC, has received an order (The Order) from the United States Department of Energy. The Order mandates that Centralia Unit 2 in Washington State remain available for operation, for a period of 90 days, until June 14, 2026.

TransAlta is currently evaluating the Order and will work with the state and federal governments in relation thereto. 

About TransAlta Corporation:

TransAlta is one of Canada’s largest publicly traded power generators, delivering reliable electricity across Canada, the United States and Western Australia. For more than 100 years, our people have safely operated and evolved essential energy infrastructure that powers customers and communities. Our technology-diverse portfolio and disciplined execution allow us to deliver dependable power across evolving energy systems. We take a practical, responsible approach to meeting today’s energy needs while building for what comes next.

For more information about TransAlta, visit our web site at transalta.com.

Cautionary Statement Regarding Forward-Looking Information

This news release includes “forward-looking information,” within the meaning of applicable Canadian securities laws, and “forward-looking statements,” within the meaning of applicable United States securities laws, including the Private Securities Litigation Reform Act of 1995 (collectively referred to herein as “forward-looking statements”). Forward-looking statements are not facts, but only predictions and generally can be identified by the use of statements that include phrases such as “may”, “will”, “believe”, “expect”, “estimate”, “anticipate”, “intend”, “plan”, “forecast”, “continue” or other similar words. Forward-looking statements are intended to provide the reader information about management’s current expectations and plans and readers are cautioned that such information may not be appropriate for other purposes. Forward-looking statements are subject to important risks and uncertainties and are based on certain key assumptions. All forward-looking statements reflect TransAlta’s beliefs and assumptions based on information available at the time the statements were made and as such are not guarantees of future performance. As actual results could vary significantly from the forward-looking statements, you should not put undue reliance on forward-looking statements and should not use future-oriented information or financial outlooks for anything other than their intended purpose. We do not update our forward-looking statements due to new information or future events, unless we are required to by law. For additional information on the assumptions made, and the risks and uncertainties which could cause actual results to differ from the anticipated results, refer to our most recent MD&A and the 2025 Annual Report, including the section titled “Governance and Risk Management” in our MD&A for the year ended December 31, 2025, filed under TransAlta’s profile on SEDAR+ at www.sedarplus.ca and with the U.S. Securities and Exchange Commission at www.sec.gov.

Note: All financial figures are in Canadian dollars unless otherwise indicated.

For more information:

Investor Inquiries:Media Inquiries:
Phone: 1-800-387-3598 in Canada and USPhone: 1-855-255-9184
Email: [email protected]Email: [email protected]

TransAlta Corporation Announces Conversion Results for Series A and B Preferred Shares

TransAlta Corporation Announces Conversion Results for Series A and B Preferred Shares

Further to TransAlta Corporation’s (TransAlta or the Company) (TSX: TA) (NYSE: TAC) press release dated March 2, 2026, the Company announced today that none of its 9,629,913 currently outstanding Cumulative Redeemable Rate Reset First Preferred Shares, Series A (Series A Shares) will be converted on March 31, 2026, on a one-for-one basis, into Cumulative Redeemable Floating Rate First Preferred Shares, Series B (Series B Shares), and (ii) 1,148,549 of its 2,370,087 currently outstanding Series B Shares will be converted on March 31, 2026, on a one-for-one basis, into Series A Shares. As a result, on March 31, 2026, the Company will have 10,778,462 Series A Shares issued and outstanding and 1,221,538 Series B Shares issued and outstanding.

The Series A Shares and Series B Shares are currently listed on the Toronto Stock Exchange under the symbols TA.PR.D and TA.PR.E, respectively.  

About TransAlta Corporation:

TransAlta is one of Canada’s largest publicly traded power generators, delivering reliable electricity across Canada, the United States and Western Australia. For more than 100 years, our people have safely operated and evolved essential energy infrastructure that powers customers and communities. Our technology-diverse portfolio and disciplined execution allow us to deliver dependable power across evolving energy systems. We take a practical, responsible approach to meeting today’s energy needs while building for what comes next.

For more information about TransAlta, visit our web site at transalta.com.

Cautionary Statement Regarding Forward-Looking Information

This news release contains certain information that is forward-looking and is subject to important risks and uncertainties (such statements are usually accompanied by words such as “may”, “will”, “should”, “estimate”, “intend” or other similar words). Specifically, this news release contains forward-looking information with respect to the Company and the conversion of the Series A Shares and the Series B Shares.  All forward-looking information reflects the Company’s beliefs and assumptions based on information available at the time the statements were made and as such are not guarantees of future performance. 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. TransAlta undertakes no obligation to update or revise any forward-looking information except as required by law. For additional information on the assumptions made, and the risks and uncertainties which could cause actual results to differ from those in the forward-looking information, refer to the Company’s most recent Annual Report and Management’s Discussion and Analysis and the Prospectus Supplement dated Dec. 3, 2010, in each case filed under the Company’s profile on SEDAR at www.sedarplus.com.

For more information:

Investor Inquiries:Media Inquiries:
Phone: 1-800-387-3598 in Canada and USPhone: 1-855-255-9184
Email: [email protected]Email: [email protected]

  

TransAlta Corporation Provides Conversion Right and Dividend Rate Notice for Series A and B Preferred Shares

TransAlta Corporation Provides Conversion Right and Dividend Rate Notice for Series A and B Preferred Shares

TransAlta Corporation (TransAlta or the Company) (TSX: TA) (NYSE: TAC) announced today that it does not intend to exercise its right to redeem all or any portion of the currently outstanding Cumulative Redeemable Rate Reset First Preferred Shares, Series A (Series A Shares) (TSX: TA.PR.D) and the Cumulative Redeemable Floating Rate First Preferred Shares, Series B (Series B Shares) (TSX: TA.PR.E) on March 31, 2026 (the Conversion Date).

As a result, and subject to certain conditions, the holders of the Series A Shares will have the right to elect to: (a) retain any or all of their Series A Shares and continue to receive a fixed rate quarterly dividend; or (b) convert all or any of their Series A Shares into Series B Shares on the basis of one Series B Share for each Series A Share on the Conversion Date and receive a floating rate quarterly dividend.  

Comparably, subject to certain conditions, the holders of the Series B Shares will have the right to elect to: (a) retain any or all of their Series B Shares and continue to receive a floating rate quarterly dividend; or (b) convert all or any of their Series B Shares into Series A Shares on the basis of one Series A Share for each Series B Share on the Conversion Date and receive a fixed rate quarterly dividend.   

As provided in the share terms, the foregoing conversion right is subject to the conditions that: (i) if TransAlta determines that there would remain outstanding immediately following the conversion, less than 1,000,000 Series A Shares, holders of Series B Shares shall not be entitled to convert their shares into Series A Shares, and the remaining Series A Shares will automatically convert to Series B Shares, on the Conversion Date; or (ii) if TransAlta determines that there would remain outstanding immediately after the conversion, less than 1,000,000 Series B Shares, holders of Series A Shares shall not be entitled to convert their shares into Series B Shares, and the remaining Series B Shares will automatically convert to Series A Shares, on the Conversion Date.  There are currently 9,629,913 Series A Shares outstanding and 2,370,087 Series B Shares.

Should a holder of Series A Shares choose to retain their shares, such shareholders will receive the quarterly fixed dividend rate applicable to Series A Shares of 1.19550% (4.78200% on an annualized basis) for the five-year period from and including March 31, 2026 to but excluding March 31, 2031. Should a holder of Series A Shares choose to convert their shares to Series B Shares, the Series B Shares that may be issued on the Conversion Date will receive the floating quarterly dividend rate applicable to the Series B Shares of 1.05236% (4.22100% on an annualized basis) for the three-month period from and including March 31, 2026 to but excluding June 30, 2026. The floating dividend rate will be reset every quarter. 

Should a holder of Series B Shares choose to retain their shares, such shareholders will receive the floating quarterly dividend rate applicable to Series B Shares of 1.05236% (4.22100% on an annualized basis) for the three-month period from and including March 31, 2026 to but excluding June 30, 2026. The floating dividend rate will be reset every quarter. Should a holder of Series B Shares choose to convert their shares to Series A Shares, holders of Series A Shares will receive the fixed quarterly dividend rate applicable to the Series A Shares of 1.19550% (4.78200% on an annualized basis) for the five-year period from and including March 31, 2026 to but excluding March 31, 2031.

The Series A Shares and Series B Shares are issued in book entry only form and must be purchased or transferred through a participant in the CDS depository service (CDS Participant). All rights of holders of Series A Shares and Series B Shares must be exercised through CDS or the CDS Participant through which the shares are held. The deadline for the registered shareholder to provide notice of exercise of the right to convert Series A Shares into Series B Shares, or Series B Shares into Series A Shares, as applicable, is 3:00 p.m. (MST) / 5:00 p.m. (EST) on March 16, 2026.  Any notices received after this deadline will not be valid. As such, holders of Series A Shares or Series B Shares who wish to exercise their right to convert their shares should contact their broker or other intermediary for more information and it is recommended that this be done as soon as possible and well in advance of the deadline in order to provide the broker or other intermediary with time to complete the necessary steps.

If TransAlta does not receive an election notice from a holder of Series A Shares or Series B Shares during the time fixed therefor, then such shares shall be deemed not to have been converted (except in the case of an automatic conversion described above). Holders of the Series A Shares and the Series B Shares will have the opportunity to convert their shares again on March 31, 2031, and every five years thereafter as long as the shares remain outstanding. For more information on the terms of the Series A Shares and the Series B Shares, please see TransAlta’s articles of amalgamation, including the share terms and shares in series schedule attached thereto as Schedule A, which are available on the Company’s website under Governance. 

About TransAlta Corporation:

TransAlta is one of Canada’s largest publicly traded power generators, delivering reliable electricity across Canada, the United States and Western Australia. For more than 100 years, our people have safely operated and evolved essential energy infrastructure that powers customers and communities. Our technology-diverse portfolio and disciplined execution allow us to deliver dependable power across evolving energy systems. We take a practical, responsible approach to meeting today’s energy needs while building for what comes next.

For more information about TransAlta, visit our web site at transalta.com.

Forward Looking Information

This news release contains certain information that is forward-looking and is subject to important risks and uncertainties (such statements are usually accompanied by words such as “may”, “will”, “should”, “estimate”, “intend” or other similar words). Specifically, this news release contains forward-looking information with respect to the Company and the conversion of the Series A Shares and the Series B Shares.  All forward-looking information reflects the Company’s beliefs and assumptions based on information available at the time the statements were made and as such are not guarantees of future performance. 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. TransAlta undertakes no obligation to update or revise any forward-looking information except as required by law. For additional information on the assumptions made, and the risks and uncertainties which could cause actual results to differ from those in the forward-looking information, refer to the Company’s most recent Annual Report and Management’s Discussion and Analysis and the Prospectus Supplement dated Dec. 3, 2010, in each case filed under the Company’s profile on SEDAR at www.sedarplus.com.

For more information:

Investor Inquiries:Media Inquiries:
Phone: 1-800-387-3598 in Canada and USPhone: 1-855-255-9184
Email: [email protected]Email: [email protected]

TransAlta to Host Investor Day

TransAlta to Host Investor Day

TransAlta Corporation (TransAlta or the Company) (TSX: TA) (NYSE: TAC) is pleased to announce that it will hold an Investor Day in Toronto on Monday, March 23, 2026.

The formal presentation will commence at 9:00 a.m. During the event, we will provide an in-depth overview of the Company’s strategic priorities, long-term plan, financial outlook and growth opportunities.

TransAlta’s Investor Day is open to the investment community and is being hosted in a hybrid format, with in-person and live webcast attendance options available. Attendees may register for the webcast using the link below or register for in-person attendance through the Investor Centre of TransAlta’s website.

Event details:

TransAlta Investor Day

Monday, March 23, 2026

Start time: 9:00 a.m. ET / 7:00 a.m. MT

For those unable to attend or view the event live,  a recording of the video webcast and corresponding presentation will be made available on the Investor Centre section of TransAlta’s website.

About TransAlta Corporation:

TransAlta is one of Canada’s largest publicly traded power generators, delivering reliable electricity across Canada, the United States and Western Australia. For more than 100 years, our people have safely operated and evolved essential energy infrastructure that powers customers and communities. Our technology-diverse portfolio and disciplined execution allow us to deliver dependable power across evolving energy systems. We take a practical, responsible approach to meeting today’s energy needs while building for what comes next.

For more information about TransAlta, visit our web site at transalta.com.

For more information:

Investor Inquiries:Media Inquiries:
Phone: 1-800-387-3598 in Canada and U.S.Phone: 1-855-255-9184
Email: [email protected]Email: [email protected]

TransAlta Enters Memorandum of Understanding for Data Centre Development at Keephills Site with Potential to Scale Up to 1 GW

TransAlta Enters Memorandum of Understanding for Data Centre Development at Keephills Site with Potential to Scale Up to 1 GW

TransAlta Corporation (TSX: TA) (NYSE: TAC) (TransAlta or the Company) is pleased to announce that it has entered into a Memorandum of Understanding (MOU) with Canada Pension Plan Investment Board (CPP Investments) and Brookfield to advance a data centre development in Alberta, for which TransAlta will be the exclusive site and power provider.

The MOU establishes a framework for phased development at the Company’s Keephills site in Parkland County, including an initial long-term power purchase agreement for approximately 230 MW and the evaluation of opportunities for additional development aggregating up to 1 GW of load. All such development is subject to regulatory approvals and the parties reaching definitive binding agreements.

“The Keephills site provides a strategic platform that leverages TransAlta’s large zoned land position, existing transmission, natural gas and water infrastructure, as well as on-site generation to support long-term project scale,” said John Kousinioris, President and Chief Executive Office of TransAlta. “We are very pleased to be working with CPP Investments and Brookfield and to serve as the exclusive site and power provider for this project. As experienced, global infrastructure investors, CPP Investments and Brookfield have the capability to deliver projects of this size and complexity. We look forward to working together to advance digital infrastructure capacity and unlock future investment in Alberta.”

About TransAlta Corporation:
TransAlta is one of Canada’s largest publicly traded power generators, delivering reliable electricity across Canada, the United States and Western Australia. For more than 100 years, our people have safely operated and evolved essential energy infrastructure that powers customers and communities. Our technology-diverse portfolio and disciplined execution allow us to deliver dependable power across evolving energy systems. We take a practical, responsible approach to meeting today’s energy needs while building for what comes next.

For more information about TransAlta, visit our web site at transalta.com.

Cautionary Statement Regarding Forward-Looking Information
This news release includes “forward-looking information,” within the meaning of applicable Canadian securities laws, and “forward-looking statements,” within the meaning of applicable United States securities laws, including the Private Securities Litigation Reform Act of 1995 (collectively referred to herein as “forward-looking statements”). Forward-looking statements are not facts, but only predictions and generally can be identified by the use of statements that include phrases such as “may”, “will”, “believe”, “expect”, “estimate”, “anticipate”, “intend”, “plan”, “forecast”, “continue” or other similar words. In particular, this news release contains forward-looking statements about the following, among other things: the MOU and its framework for phased development of the Keephills site, including the potential execution of a long-term power purchase agreement for 230MW; the evaluation of opportunities for additional phases of development; and the potential for such additional phases of development to aggregate to 1GW of load.


Forward-looking statements in this news release are intended to provide the reader information about management’s current expectations and plans and readers are cautioned that such information may not be appropriate for other purposes. Forward-looking statements are subject to important risks and uncertainties and are based on certain key assumptions. All forward-looking statements reflect TransAlta’s beliefs and assumptions based on information available at the time the statements were made and as such are not guarantees of future performance. As actual results could vary significantly from the forward-looking statements, you should not put undue reliance on forward-looking statements and should not use future-oriented information or financial outlooks for anything other than their intended purpose. We do not update our forward-looking statements due to new information or future events, unless we are required to by law. For additional information on the assumptions made, and the risks and uncertainties which could cause actual results to differ from the anticipated results, refer to our most recent MD&A and Annual Report, filed under TransAlta’s profile on SEDAR+ at www.sedarplus.ca and with the U.S. Securities and Exchange Commission at www.sec.gov.
For more information:

Investor Inquiries:Media Inquiries:
Phone: 1-800-387-3598 in Canada and USPhone: 1-855-255-9184
Email: investor_relations@transalta.comEmail: [email protected]

TransAlta Reports Fourth Quarter and Year End 2025 Results, Announces Data Centre Agreement, Declares Dividend Increase and Provides 2026 Outlook

TransAlta Reports Fourth Quarter and Year End 2025 Results, Announces Data Centre Agreement, Declares Dividend Increase and Provides 2026 Outlook

TransAlta Corporation (TransAlta or the Company) (TSX: TA) (NYSE: TAC) today reported its financial results for the fourth quarter and year ended Dec. 31, 2025.

“TransAlta delivered strong performance in 2025, demonstrating its ability to generate solid free cash flow notwithstanding softer Alberta power prices, subdued market volatility, and lower merchant production. Our hedging strategy and contracted portfolio supported our strong ongoing performance and helped offset a challenging price environment” said John Kousinioris, President and Chief Executive Officer of TransAlta. “I’m pleased to share that free cash flow came in above the midpoint of our 2025 Outlook.”

“We are pleased to announce that our Board of Directors has approved an eight per cent increase to our common share dividend, now equivalent to $0.28 per share on an annualized basis. This represents our seventh consecutive annual dividend increase, affirming our confidence in the Company’s future and commitment to returning value to shareholders,” concluded Mr. Kousinioris.

“Over the past few months, we focused on executing our strategic priorities. During the fourth quarter, we secured a definitive tolling agreement to convert Centralia Unit 2 to natural-gas-fired generation under a long-term contract and today, we announced the signing of a memorandum of understanding for our Alberta data centre strategy with Canada Pension Plan Investments and Brookfield,” said Joel Hunter, Executive Vice President, Finance and Chief Financial Officer. “We also recently closed the acquisition of Far North which enhances our position in Ontario,” added Mr. Hunter.

“We are entering 2026 with a growing and diversified fleet that is underpinned by long-term contracts and  strong hedging positions. Our guidance incorporates a balanced view of our fleet’s expected generation as well as Alberta power market fundamentals, which we expect to markedly improve as expected data centre load growth comes online in the coming years. We look forward to sharing more with you on our long-term outlook and strategy at our upcoming Investor Day scheduled for March 23, 2026,” concluded Mr. Hunter.

Fourth Quarter 2025 Highlights

  • Achieved strong operational availability of 90.1 per cent in 2025, compared to 87.8 per cent in 2024
  • Adjusted EBITDA(1) of $247 million, compared to $282 million for the same period in 2024
  • Free cash flow (FCF)(1) of $93 million, or $0.31 per share, compared to $46 million, or $0.15 per share, for the same period in 2024
  • Adjusted earnings before income taxes(1) of $14 million, compared to $38 million, for the same period in 2024
  • Cash flow from operating activities of $231 million, or $0.78 per share, compared to $215 million, or  $0.72 per share, for the same period in 2024
  • Net loss attributable to common shareholders(1) of $62 million, or $0.21 per share, compared to $65 million, or $0.22 per share, for the same period in 2024

Full Year 2025 Highlights

  • Achieved strong operational availability of 92.3 per cent in 2025, compared to 91.2 per cent in 2024
  • Adjusted EBITDA(1) of $1,104 million, compared to $1,255 million for the same period in 2024
  • Free cash flow (FCF)(1) of $514 million, or $1.73 per share, compared to $575 million, or $1.90 per share, for the same period in 2024
  • Adjusted earnings before income taxes(1) of $181 million, compared to $396 million, for the same period in 2024
  • Cash flow from operating activities of $646 million, or $2.18 per share, compared to $796 million, or  $2.64 per share, for the same period in 2024
  • Net loss attributable to common shareholders(1) of $190 million, or $0.64 per share, compared to net earnings attributable to common shareholders of $177 million, or $0.59 per share, for the same period in 2024
  • Announced an annual dividend increase of eight per cent, now equivalent to $0.28 per share on an annualized basis, which represents the seventh year of consecutive dividend growth
  • Provided 2026 Outlook including adjusted EBITDA of $950 million to $1,050 million and FCF of $350 million to $450 million, or $1.18 to $1.51 per share
  • Reduced scope 1 and 2 GHG emissions intensity in 2025 to 0.31 tCO2e/MWh from 2024 levels of 0.35 tCO2e/MWh
  • Reduced scope 1 and 2 annual GHG emissions by 30.7 million tonnes of CO2e or 76 per cent since 2015, achieving our goal of a 75 per cent reduction by 2026
  • 2025 Total Recordable Injury Frequency of 0.12 compared to 0.56 in 2024

Fourth Quarter and Year Ended 2025 Operational and Financial Highlights

 $ millions, unless otherwise statedThree Months EndedYear Ended
Dec. 31, 2025Dec. 31, 2024Dec. 31, 2025Dec. 31, 2024
Operational information(2)    
Availability (%)90.187.8  92.391.2
Production (GWh)6,7256,19924,52122,811
Select financial information(2)    
Revenues5996782,4052,845
Adjusted EBITDA(1)2472821,1041,255
Adjusted earnings before income taxes(1)1438181396
(Loss) earnings before income taxes(42)(51)(141)319
Adjusted net (loss) earnings attributable to common shareholders(1)(19)357236
Net (loss) earnings attributable to common shareholders(62)(65)(190)177
Cash flows(2)    
Cash flow from operating activities231215646796
Funds from operations(1)162135749816
Free cash flow(1)9346514575
Per share(2)    
Adjusted net (loss) earnings attributable to common shareholders per share(1)(3)(0.06)0.010.190.78
Net (loss) earnings per share attributable to common shareholders, basic and diluted(0.21)(0.22)(0.64)0.59
Cash flow from operating activities per share(4)0.780.722.182.64
Funds from operations per share(1)(3)0.550.452.522.70
Free cash flow per share(1)(3)0.310.151.731.90
Dividends declared per common share0.130.130.260.24
Weighted average number of common shares outstanding297298297302

Segmented Financial Performance

  $ millionsThree Months EndedYear Ended
Dec. 31, 2025Dec. 31, 2024Dec. 31, 2025Dec. 31, 2024
Hydro39 57 285 316 
Wind and Solar102 95 338 316 
Gas96 116438 524  
Energy Transition1626 100 89 
Energy Marketing2126 85 146 
Corporate(27)(38)(142)(136)
Total adjusted EBITDA(1)(5)247 282  1,104 1,255 
Adjusted earnings before income taxes(1)1438 181396  
(Loss) earnings before income taxes(42)(51)(141)319 
Adjusted net (loss) earnings attributable to common shareholders(1)(19)57 236  
Net (loss) earnings attributable to common shareholders(62)(65)(190)177 

1. These are non-IFRS measures and ratios, which are not defined and have no standardized meaning under IFRS and may not be comparable to similar measures presented by other issuers. Refer to the “Segmented Financial Performance and Operating Results” section of this news release for further discussion of these items. Also, refer to the “Non-IFRS and Supplementary Financial Measures” section of this news release for more information regarding these non-IFRS measures and ratios, including, where applicable, reconciliations to measures calculated in accordance with IFRS.

2. On Dec. 4, 2024, the Company completed the acquisition of Heartland Generation, which added 1,747 MW to gross installed capacity, excluding the Poplar Hill and Rainbow Lake facilities (collectively, the Required Divestitures). Refer to the “Significant and Subsequent Events” section of this MD&A. IFRS financial statements include the results attributable to the Required Divestitures up until the date of disposal, in accordance with a consent agreement entered into with the Commissioner of Competition for Canada. Our non-IFRS measures and operational Key Performance Indicators exclude the results of the Required Divestitures.

3. Adjusted net (loss) earnings attributable to common shareholders per share, funds from operations (FFO) per share and free cash flow (FCF) per share are calculated using the weighted average number of common shares outstanding during the period. Refer to the “Non-IFRS and Supplementary Financial Measures” section of this news release for more information regarding these non-‍IFRS measures and ratios.

4. Represents a supplementary financial measure and is calculated as Cash flow from operating activities for the period divided by the weighted average number of common shares outstanding during the period.

5. During the first quarter of 2025, our Adjusted EBITDA composition was amended to exclude the impact of realized gain (loss) on closed exchange positions and Australian interest income. Therefore, the Company has applied this composition to all previously reported periods. Refer to the “Non-IFRS and Supplementary Financial Measures” section of this news release.

Key Business Developments

Memorandum of Understanding for Data Centre Development at Keephills Site Signed

On Feb. 26, 2026, the Company entered into a Memorandum of Understanding (MOU) with Canada Pension Plan Investments and Brookfield to advance data centre development in Alberta, for which TransAlta is the exclusive site and power provider.  The MOU establishes a framework for phased development at the Company’s Keephills site in Parkland County, including an initial long-term power purchase agreement for approximately 230 MW and the evaluation of additional development aggregating up to 1 Gigawatt of load. Development is subject to regulatory approvals and the parties reaching definitive agreements.

Declared Increase in Common Share Dividend

The Company’s Board has approved a $0.02 annualized (eight per cent) increase to the common share dividend and declared a dividend of $0.07 per common share on Feb. 25, 2026 to be payable on July 1, 2026 to shareholders of record at the close of business on June 1, 2026. The quarterly dividend of $0.07 per common share represents an annualized dividend of $0.28 per common share.

Acquisition of Far North

On Feb. 2, 2026, the Company closed the acquisition of Far North Power Corporation (Far North) for a purchase price of $95 million from an affiliate of Hut 8 Corporation, subject to working capital and other adjustments. The net cash payment for the transaction was funded through a combination of cash on hand and borrowings under TransAlta’s credit facilities.

The transaction adds 310 MW of capacity from four natural gas-fired facilities in our core market of Ontario, increasing the Company’s total installed capacity in the province to 1,384 MW.

US$400 million Senior Notes Offering and Early Redemption of the 7.8% Senior Notes

On Dec. 22, 2025, the Company issued US$400 million senior notes with a fixed annual coupon rate of 5.9 per cent, maturing on Feb. 1, 2034. The notes are unsecured and rank equally in right of payment with all existing and future senior indebtedness and senior in right of payment to all future subordinated indebtedness. The notes were issued at 99.39 per cent of par value, resulting in net proceeds of $541 million (US$393 million), and are callable in three years. Interest payments on the notes are made semi-annually, on Feb. 1 and Aug. 1, with the first payment scheduled for Aug. 1, 2026.

The proceeds from the offering were used to redeem all of the Company’s outstanding 7.8 per cent US$400 million senior notes for the total redemption price of $573 million (US$416 million) in advance of the scheduled maturity date of Nov. 15, 2029.

Mothballing of Sheerness Unit 1

On Dec. 18, 2025, the Company provided notice to the Alberta Electric System Operator (AESO) that Sheerness Unit 1 will be mothballed effective April 1, 2026, for a period of up to two years. The Company maintains the flexibility to return the mothballed unit to service when market fundamentals improve or contracting opportunities are secured. The unit will remain available and fully operational through the first quarter of 2026 and Sheerness Unit 2 will remain fully in service.

Centralia Unit 2 Mandated to Remain Available

On Dec. 16, 2025, the Company received an order from the United States Department of Energy (the Order) requiring that our 700 MW Centralia Unit 2 facility remain available if called upon to operate for a period of 90 days, until March 16, 2026. The Company is currently compliant with the Order and continues to work with the state and federal governments in relation thereto.

Centralia Tolling Agreement Signed

On Dec. 9, 2025, the Company announced it had entered into a long-term tolling agreement (Tolling Agreement) with Puget Sound Energy to convert our 700 MW Centralia Unit 2 facility from coal to natural gas. The conversion extends the operating life of facility and will leverage existing turbines, transmission and infrastructure, while also lowering emissions.

The Tolling Agreement provides a fixed-price capacity payment through 2044 for the facility. The coal-to-gas conversion project is expected to require approximately US$600 million in capital and, once in service, will generate contracted cash flow over the life of the Tolling Agreement. The Company expects to declare a final investment decision for the project in early 2027, after receiving required regulatory approvals. Permitting work will continue through 2026, followed by construction in 2027–2028, with converted natural gas-fired operations expected to begin in late 2028.

Chief Executive Officer Succession

On Nov. 6, 2025, the Company announced that John Kousinioris, President and Chief Executive Officer and a Director of TransAlta, plans to retire effective April 30, 2026. Concurrent with this announcement, the Board of Directors appointed Joel Hunter, TransAlta’s Executive Vice President, Finance and Chief Financial Officer, to succeed Mr. Kousinioris as President and Chief Executive Officer and be nominated to join the Board effective April 30, 2026. Mr. Kousinioris has agreed to serve as a strategic advisor to Mr. Hunter and the Board for a period of six months following his retirement.  The Company’s Chief Financial Officer successor will be announced in the coming months.

Demand Transmission Service Contract

On Oct. 3, 2025, the Company entered into a 230 MW Demand Transmission Service Contract with the AESO, representing the full allocation awarded to the Company through Phase I of the AESO’s Data Centre Large Load Integration Program.

2026 Outlook

For 2026, the Company expects Adjusted EBITDA to be in the range of $950 million to $1,050 million and FCF to be in the range of $350 million to $450 million, based on the following expectations:

  • Lower contribution from the Energy Transition segment due to the Centralia facility ceasing dispatchable coal-fired generation at the end of 2025;
  • Lower contribution from the Alberta merchant gas portfolio as a result of lower average hedge prices and higher fuel costs, partially offset by lower carbon compliance costs due to a higher utilization of internally generated low-cost environmental credits;
  • Lower contributions from Sarnia, reflecting a step down in contracted pricing and the expiry of the contract and decommissioning of the Ada Cogeneration facility;
  • Higher contributions within the Hydro, Gas and Wind and Solar segments due to the expected realization of carbon credits against in-year, in addition to 2025, carbon compliance costs in Alberta;  
  • Higher contributions from the Gas segment due to the acquisition of the Far North Ontario gas facilities;
  • Higher contributions from the Wind and Solar segment as a result of higher expected production;
  • Higher income tax expense; and
  • Lower Net Interest Expense as a result of lower interest rates on refinanced debt and lower interest on non-recourse debt as a result of amortizing repayments.

The following table outlines our expectations on key financial targets and related assumptions for 2026 and should be read in conjunction with the narrative discussion that follows and the “Risk Management” section of TransAlta’s MD&A for the Fourth Quarter and Year Ended Dec. 31, 2025:

Measure2026 Target(2)2025 Target2025 Actual(3)
Adjusted EBITDA(1)$950 million to $1,050 million$1,150 million to $1,250 million$1,104 million
FCF(1)$350 million to $450 million$450 million to $550 million$514 million
FCF per share(1)$1.18 to $1.51$1.51 to $1.85$1.73
Dividend per share$0.28 annualized$0.26 annualized$0.26 annualized
  1. These are non-IFRS measures and ratios, which are not defined and have no standardized meaning under IFRS and may not be comparable to similar measures presented by other issuers. We believe that presenting these items from period to period provides management and investors with the ability to evaluate (loss) earnings and cash flow trends more readily in comparison with prior periods’ results. Please refer to the Non-IFRS and supplementary financial measures section of this news release for further discussion of these items.
  2. Represents forward-looking information.See “Cautionary Statement Regarding Forward-Looking Information” herein.
  3. The actual 2025 amounts for the most directly comparable IFRS measures for Adjusted EBITDA and FCF were as follows: Loss before income taxes of $141 million and Cash flow from operating activities of $646 million. The most directly comparable IFRS ratio to FCF per share is cash flow from operating activities per share of $2.18, which is calculated as cash flow from operating activities for the period divided by the weighted average number of common shares outstanding during the period. Refer to the “Non-IFRS and Supplementary Financial Measures” section of this news release for further discussion of these items.

The Company’s outlook for 2026 may be impacted by a number of factors as detailed further below:

Market2026 Assumptions2025 Assumptions2025 Actual
Alberta spot ($/MWh)$40 to $60$40 to $60$44
AECO gas price ($/GJ)$2.65 to $3.15$1.60 to $2.10$1.61

Alberta spot price sensitivity: a +/- $1 per MWh change in spot price is expected to have a +/- $2 million impact on Adjusted EBITDA for 2026.

Measure2026 Expectations2025 Expectations2025 Actual
Energy Marketing Adjusted Revenues(1)$110 million to $130 million$110 million to $130 million$122 million
Sustaining capital expenditures(2)$140 million to $160 million$145 million to $165 million$162 million
Current income tax expense$70 million to $100 million$95 million to $130 million$49 million
Net Interest Expense(1)$240 million to $260 million$255 million to $275 million$264 million
  1. Energy Marketing Adjusted Revenues and Net Interest Expense are non-IFRS measures, are not defined, have no standardized meaning under IFRS and may not be comparable to similar measures presented by other issuers. The most directly comparable IFRS measure to Energy Marketing Adjusted Revenues is revenues of $130 million for the year ended Dec. 31, 2025 and to Net Interest Expense — interest expense of $347 million for the year ended Dec. 31, 2025
Range of hedging assumptionsQ1 2026Q2 2026Q3 2026Q4 20262027
Hedged production (GWh)2,302 1,9902,1722,027 3,967 
Hedge price ($/MWh)$65$65$65$65$71
Hedged gas amounts (GJ)12 million7 million8 million7 million19 million
Hedge gas prices ($/GJ)$3.21$3.33$3.29$3.39$3.04

Conference call and webcast

TransAlta will host a conference call and webcast at 9:00 a.m. MST (11:00 a.m. EST) today, Feb. 27, 2026, to discuss our fourth quarter and full year 2025 results along with the Company’s 2026 annual guidance. The call will begin with comments from John Kousinioris, President and Chief Executive Officer, and Joel Hunter, EVP Finance and Chief Financial Officer, followed by a question-and-answer period.

Fourth Quarter and Full Year 2025 Results Conference Call

Webcast link: https://edge.media-server.com/mmc/p/whytyzbs

To access the conference call via telephone, please register ahead of time using the call link here:  https://register-conf.media-server.com/register/BIaa8023bbcae44cde8d2a046c730467b3. Once registered, participants will have the option of 1) dialing into the call from their phone (via a personalized PIN); or 2) clicking the “Call Me” option to receive an automated call directly to their phone.

If you are unable to participate in the call, the replay will be accessible at https://edge.media-server.com/mmc/p/whytyzbs. A transcript of the broadcast will be posted on TransAlta’s website once it becomes available.

TransAlta is in the process of filing its Annual Information Form, audited Consolidated Financial Statements and accompanying notes, as well as the associated Management’s Discussion & Analysis (MD&A). These documents will be available today on the Investors section of TransAlta’s website at www.transalta.com or through SEDAR+ at www.sedarplus.ca and with the U.S. Securities and Exchange Commission on EDGAR at www.sec.gov.

About TransAlta Corporation:

TransAlta is one of Canada’s largest publicly traded power generators, delivering reliable electricity across Canada, the United States and Western Australia. For more than 100 years, our people have safely operated and evolved essential energy infrastructure that powers customers and communities. Our technology-diverse portfolio and disciplined execution allow us to deliver dependable power across evolving energy systems. We take a practical, responsible approach to meeting today’s energy needs while building for what comes next.

For more information about TransAlta, visit our web site at transalta.com.

Cautionary Statement Regarding Forward-Looking Information

This news release includes “forward-looking information,” within the meaning of applicable Canadian securities laws, and “forward-looking statements,” within the meaning of applicable United States securities laws, including the Private Securities Litigation Reform Act of 1995 (collectively referred to herein as “forward-looking statements”). Forward-looking statements are not facts, but only predictions and generally can be identified by the use of statements that include phrases such as “may”, “will”, “believe”, “expect”, “estimate”, “anticipate”, “intend”, “plan”, “forecast”, “continue” or other similar words. In particular, this news release contains forward-looking statements about the following, among other things: our 2026 Outlook; the potential arising out of the MOU for data centre development for additional phases of development to aggregate to 1GW of load at the Company’s Keephills site; the costs and permitting, regulatory approvals, construction and operational timelines for the Centralia Unit 2 coal to natural gas conversion project; and the timing of the announcement of the Company’s Chief Financial Officer successor.

Forward-looking statements and future-oriented financial information in this news release are intended to provide the reader information about management’s current expectations and plans and readers are cautioned that such information may not be appropriate for other purposes. Forward-looking statements are subject to important risks and uncertainties and are based on certain key assumptions. All forward-looking statements reflect TransAlta’s beliefs and assumptions based on information available at the time the statements were made and as such are not guarantees of future performance. As actual results could vary significantly from the forward-looking statements, you should not put undue reliance on forward-looking statements and should not use future-oriented information or financial outlooks for anything other than their intended purpose. We do not update our forward-looking statements due to new information or future events, unless we are required to by law. For additional information on the assumptions made, and the risks and uncertainties which could cause actual results to differ from the anticipated results, refer to our most recent MD&A, which forms part of this news release, and the 2025 Integrated Report, including the section titled “Governance and Risk Management” in our MD&A for the year ended December 31, 2025, filed under TransAlta’s profile on SEDAR+ at www.sedarplus.ca and with the U.S. Securities and Exchange Commission at www.sec.gov.

Non-IFRS and Supplementary Financial Measures

This news release contains references to the following Non-IFRS measures: Adjusted EBITDA; Free Cash Flow (FCF) (including per share); Adjusted earnings (loss) before income taxes; Adjusted net earnings (loss) attributable to common shareholders (including per share); Funds from operations (FFO) (including per share); Energy Marketing adjusted revenues and net interest expense. Non-IFRS measures do not have standardized meanings under IFRS and are unlikely to be comparable to similar measures presented by other companies and should not be viewed in isolation from, as an alternative to, or more meaningful than, our IFRS results.  We use these measures to evaluate our performance and the performance of our business segments and believe that these measures, read together with our IFRS measures, provide readers with a better understanding of how management assesses results. Presenting these measures from period to period provides management and investors with the ability to evaluate earnings (loss) trends more readily in comparison to prior periods’ results. These measures are calculated by adjusting certain IFRS measures for certain items we believe are not reflective of our ongoing operations in a period and are calculated on a consistent basis from period to period and are adjusted for specific items in each period, unless stated otherwise. Refer to the Non-IFRS and Supplementary Measures section of our most recent MD&A, which forms part of this news release, for more information about these measures including, where applicable, reconciliations to measures calculated in accordance with IFRS.

Note: All financial figures are in Canadian dollars unless otherwise indicated.

For more information:

Investor Inquiries:Media Inquiries:
Phone: 1-800-387-3598 in Canada and U.S.Phone: 1-855-255-9184
Email: [email protected]Email: [email protected]

TransAlta to Host Fourth Quarter and Full Year 2025 Results Conference Call

TransAlta to Host Fourth Quarter and Full Year 2025 Results Conference Call

TransAlta Corporation (TransAlta or the Company) (TSX: TA) (NYSE: TAC) will release its fourth quarter and full year 2025 results before markets open on Friday, February 27, 2026. A conference call and webcast to discuss the results as well as the Company’s 2026 annual guidance will be held for investors, analysts, members of the media and other interested parties the same day beginning at 9:00 a.m. Mountain Time (11:00 a.m. ET).  

Fourth Quarter and Full Year 2025 Conference Call:

Webcast link: https://edge.media-server.com/mmc/p/whytyzbs

To access the conference call via telephone, please register ahead of time using the call link below: https://register-conf.media-server.com/register/BIaa8023bbcae44cde8d2a046c730467b3. Once registered, participants will have the option of 1) dialing into the call from their phone (via a personalized PIN); or 2) clicking the “Call Me” option to receive an automated call directly to their phone.

Related materials will be available on the Investor Centre section of TransAlta’s website at https://transalta.com/investors/presentations-and-events/. If you are unable to participate in the call, the replay will be accessible at https://edge.media-server.com/mmc/p/whytyzbs. A transcript of the broadcast will be posted on TransAlta’s website once it becomes available.

About TransAlta Corporation:

TransAlta owns, operates and develops a diverse fleet of electrical power generation assets in Canada, the United States and Australia with a focus on long-term shareholder value. TransAlta provides municipalities, medium and large industries, businesses and utility customers with affordable, energy efficient and reliable power. Today, TransAlta is one of Canada’s largest independent producers of wind power and thermal generation and is Alberta’s largest producer of hydro-electric power. For over 114 years, TransAlta has been a responsible operator and a proud member of the communities where we operate and where our employees work and live. TransAlta aligns its corporate goals with the UN Sustainable Development Goals and the Future-Fit Business Benchmark, which also defines sustainable goals for businesses. Our reporting on climate change management has been guided by the International Financial Reporting Standards (IFRS) S2 Climate-related Disclosures Standard and the Task Force on Climate-related Financial Disclosures (TCFD) recommendations. TransAlta has achieved a 70 per cent reduction in GHG emissions or 22.7 million tonnes CO2e since 2015 and received an upgraded MSCI ESG rating of AA.

For more information about TransAlta, visit its website at transalta.com.

Note: All financial figures are in Canadian dollars unless otherwise indicated.

For more information:

Investor Inquiries:Media Inquiries:
Phone: 1-800-387-3598 in Canada and U.S.Phone: 1-855-255-9184
Email: [email protected]Email: [email protected]

TransAlta Provides Notice to Mothball Sheerness Unit 1

TransAlta Provides Notice to Mothball Sheerness Unit 1

Alberta Power (2000) Ltd., a subsidiary of TransAlta Corporation (TransAlta or the Company) (TSX: TA) (NYSE: TAC), provided notice to the Alberta Electric System Operator on December 18, 2025, that Sheerness Unit 1 will be temporarily mothballed effective April 1, 2026, for a period of up to two years. TransAlta maintains the flexibility to return the mothballed unit to service when market fundamentals or contracting opportunities are secured. The unit will remain available and fully operational through the winter season and Sheerness Unit 2 will remain fully in service.

“We have made the prudent financial decision to temporarily mothball Sheerness Unit 1 while reserving it for future economic opportunities. There is significant value at our Alberta thermal sites and we remain very pleased with the continued progress on our data centre strategy. Today’s decision ensures we preserve the long-term optionality of the asset,” said John Kousinioris, President and Chief Executive Officer.

About TransAlta Corporation:

TransAlta owns, operates and develops a diverse fleet of electrical power generation assets in Canada, the United States and Australia with a focus on long-term shareholder value. TransAlta provides municipalities, medium and large industries, businesses and utility customers with affordable, energy efficient and reliable power. Today, TransAlta is one of Canada’s largest producers of wind power and Alberta’s largest producer of thermal generation and hydro-electric power. For over 114 years, TransAlta has been a responsible operator and a proud member of the communities where we operate and where our employees work and live. TransAlta aligns its corporate goals with the UN Sustainable Development Goals and the Future-Fit Business Benchmark, which also defines sustainable goals for businesses. Our reporting on climate change management has been guided by the International Financial Reporting Standards (IFRS) S2 Climate-related Disclosures Standard and the Task Force on Climate-related Financial Disclosures (TCFD) recommendations. TransAlta has achieved a 70 per cent reduction in GHG emissions or 22.7 million tonnes CO2e since 2015 and received an upgraded MSCI ESG rating of AA.

For more information about TransAlta, visit our web site at transalta.com.

Cautionary Statement Regarding Forward-Looking Information

This news release includes “forward-looking information,” within the meaning of applicable Canadian securities laws, and “forward-looking statements,” within the meaning of applicable United States securities laws, including the Private Securities Litigation Reform Act of 1995 (collectively referred to herein as “forward-looking statements”). Forward-looking statements are not facts, but only predictions and generally can be identified by the use of statements that include phrases such as “may”, “will”, “believe”, “expect”, “estimate”, “anticipate”, “intend”, “plan”, “forecast”, “continue” or other similar words. Forward-looking statements are intended to provide the reader information about management’s current expectations and plans and readers are cautioned that such information may not be appropriate for other purposes. Forward-looking statements are subject to important risks and uncertainties and are based on certain key assumptions. All forward-looking statements reflect TransAlta’s beliefs and assumptions based on information available at the time the statements were made and as such are not guarantees of future performance. As actual results could vary significantly from the forward-looking statements, you should not put undue reliance on forward-looking statements and should not use future-oriented information or financial outlooks for anything other than their intended purpose. We do not update our forward-looking statements due to new information or future events, unless we are required to by law. For additional information on the assumptions made, and the risks and uncertainties which could cause actual results to differ from the anticipated results, refer to our most recent MD&A and the 2024 Integrated Report, including the section titled “Governance and Risk Management” in our MD&A for the year ended December 31, 2024, filed under TransAlta’s profile on SEDAR+ at www.sedarplus.ca and with the U.S. Securities and Exchange Commission at www.sec.gov.

Note: All financial figures are in Canadian dollars unless otherwise indicated.

For more information:

Investor Inquiries:Media Inquiries:
Phone: 1-800-387-3598 in Canada and USPhone: 1-855-255-9184
Email: [email protected]Email: [email protected]

Department of Energy Mandates Centralia Unit 2 Remain Available for Operation for 90 Days

Department of Energy Mandates Centralia Unit 2 Remain Available for Operation for 90 Days

TransAlta Corporation (TransAlta or the Company) (TSX: TA) (NYSE: TAC) confirms that its subsidiary, TransAlta Centralia Generation LLC, has received an order (the Order) from the United States Department of Energy. The Order mandates that Centralia Unit 2 in Washington State remain available for operation, for a period of 90 days, until March 16, 2026.

TransAlta is currently evaluating the Order and will work with the state and federal governments in relation thereto.  Further information regarding the Order will be provided as it becomes available in due course.

About TransAlta Corporation:
TransAlta owns, operates and develops a diverse fleet of electrical power generation assets in Canada, the United States and Australia with a focus on long-term shareholder value. TransAlta provides municipalities, medium and large industries, businesses and utility customers with affordable, energy efficient and reliable power. Today, TransAlta is one of Canada’s largest producers of wind power and Alberta’s largest producer of thermal generation and hydro-electric power. For over 114 years, TransAlta has been a responsible operator and a proud member of the communities where we operate and where our employees work and live. TransAlta aligns its corporate goals with the UN Sustainable Development Goals and the Future-Fit Business Benchmark, which also defines sustainable goals for businesses. Our reporting on climate change management has been guided by the International Financial Reporting Standards (IFRS) S2 Climate-related Disclosures Standard and the Task Force on Climate-related Financial Disclosures (TCFD) recommendations. TransAlta has achieved a 70 per cent reduction in GHG emissions or 22.7 million tonnes CO2e since 2015 and received an upgraded MSCI ESG rating of AA.

For more information about TransAlta, visit our web site at transalta.com.

Cautionary Statement Regarding Forward-Looking Information
This news release includes “forward-looking information,” within the meaning of applicable Canadian securities laws, and “forward-looking statements,” within the meaning of applicable United States securities laws, including the Private Securities Litigation Reform Act of 1995 (collectively referred to herein as “forward-looking statements”). Forward-looking statements are not facts, but only predictions and generally can be identified by the use of statements that include phrases such as “may”, “will”, “believe”, “expect”, “estimate”, “anticipate”, “intend”, “plan”, “forecast”, “continue” or other similar words. Forward-looking statements are intended to provide the reader information about management’s current expectations and plans and readers are cautioned that such information may not be appropriate for other purposes. Forward-looking statements are subject to important risks and uncertainties and are based on certain key assumptions. All forward-looking statements reflect TransAlta’s beliefs and assumptions based on information available at the time the statements were made and as such are not guarantees of future performance. As actual results could vary significantly from the forward-looking statements, you should not put undue reliance on forward-looking statements and should not use future-oriented information or financial outlooks for anything other than their intended purpose. We do not update our forward-looking statements due to new information or future events, unless we are required to by law. For additional information on the assumptions made, and the risks and uncertainties which could cause actual results to differ from the anticipated results, refer to our most recent MD&A and the 2024 Integrated Report, including the section titled “Governance and Risk Management” in our MD&A for the year ended December 31, 2024, filed under TransAlta’s profile on SEDAR+ at www.sedarplus.ca and with the U.S. Securities and Exchange Commission at www.sec.gov.

Note: All financial figures are in Canadian dollars unless otherwise indicated.

For more information:

Investor Inquiries:Media Inquiries:
Phone: 1-800-387-3598 in Canada and USPhone: 1-855-255-9184
Email: [email protected]Email: [email protected]