U.S. energy department orders TransAlta's Centralia Unit 2 to stay online

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

September 14, 2026 7:00 AM EDT

CALGARY, Alberta, Sept. 14, 2026 (GLOBE NEWSWIRE) -- 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 December 12, 2026.

Once in effect, TransAlta will continue to comply with the Order and to work with the U.S. Department of Energy and Washington state government in relation thereto.

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