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

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CALGARY, Alberta, Feb. 27, 2026 (GLOBE NEWSWIRE) — 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.

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“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.”

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“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.

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“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.

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“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.

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Fourth Quarter 2025 Highlights

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Full Year 2025 Highlights

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Fourth Quarter and Year Ended 2025 Operational and Financial Highlights

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Segmented Financial Performance

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<sup>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 news release. 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.</sup>

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Key Business Developments

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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 phases aggregating up to 1 Gigawatt of load. Development is subject to regulatory approvals and the parties reaching definitive agreements.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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Chief Executive Officer Succession

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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.

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Demand Transmission Service Contract

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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.

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2026 Outlook

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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:

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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:

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

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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.

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Conference call and webcast

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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.

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Fourth Quarter and Full Year 2025 Results Conference Call

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

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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.

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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.

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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.

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About TransAlta Corporation:

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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.

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

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Cautionary Statement Regarding Forward-Looking Information

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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.

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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.

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Non-IFRS and Supplementary Financial Measures

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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.

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

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For more information:

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