08:06 AM EDT, 06/15/2026 (MT Newswires) -- (Adding share price price move as third paragraph)

A TransAlta ( TAC ) subsidiary has received an order from the U.S. Energy Department mandating that the Centralia Unit 2 in Washington State remain available for operation for 90 days until Sept. 13, the company said Monday.

Once in effect, TransAlta ( TAC ) will continue to comply with the order and to work with the U.S. Energy Department and Washington state government, TransAlta ( TAC ) added.

Shares in TA were up $0.07 or near 0.4% to $18.76 in Canada last Friday. Its shares have in recent moments turned slightly negative in US premarket, having been up 4.5% a short time ago.