• TransAlta subsidiary TransAlta Centralia Generation received a U.S. Department of Energy order keeping Centralia Unit 2 available to operate for 90 days.
• The availability mandate runs through Sept. 13, 2026.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. TransAlta Corporation published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001171843-26-004113), on June 15, 2026, and is solely responsible for the information contained therein.