Department of Energy Mandates Centralia Unit 2 Remain Available for Operation for Additional 90 Days
Rhea-AI Summary
TransAlta (NYSE: TAC) confirmed that its subsidiary TransAlta Centralia Generation LLC received an order from the U.S. Department of Energy requiring Centralia Unit 2 to remain available for operation for 90 days, through June 14, 2026. TransAlta is evaluating the Order and will coordinate with state and federal governments.
Positive
- DOE order provides a clear 90-day operational timeline through June 14, 2026
- TransAlta confirmed receipt of the Order and is engaging with governments to address requirements
Negative
- Mandatory availability for 90 days may impose operational and compliance obligations on Centralia Unit 2
Key Figures
Market Reality Check
Peers on Argus
TAC was modestly higher by 0.24% while only one tracked peer (TLN) appeared in the momentum scan, flagged "up" with a reported 0% move. Broader peers like KEN, PAM, NRG and VST showed gains but are not in the momentum list, so the data point to a stock‑specific reaction to the DOE order rather than a clear sector‑wide move.
Historical Context
| Date | Event | Sentiment | Move | Catalyst |
|---|---|---|---|---|
| Mar 02 | Preferred share terms | Neutral | -3.9% | Conversion and dividend rate notice for Series A and B preferred shares. |
| Feb 27 | Investor Day announcement | Positive | +5.5% | Scheduled Investor Day to outline strategy, long-term plan and outlook. |
| Feb 27 | Data centre MOU | Positive | +5.5% | MOU for Keephills data centre with initial ~230 MW PPA and up to 1 GW. |
| Feb 27 | Earnings and outlook | Positive | +5.5% | 2025 results, 2026 guidance, dividend increase and strategic transactions. |
| Jan 27 | Earnings call logistics | Neutral | +0.9% | Announcement of timing and access details for 2025 results call. |
Recent history shows positive strategic and earnings updates (data centre MOU, dividend increase, Investor Day) coinciding with +5.45% moves, while more technical or preference-share notices saw weaker or negative reactions.
Over the last few months, TransAlta has highlighted several strategic and financial developments. On Feb 27, 2026, it reported 2025 results with $1,104M adjusted EBITDA and $514M free cash flow, raised its annual dividend to $0.28, outlined 2026 guidance, and announced a large data centre MOU and a Centralia Unit 2 tolling agreement, with the stock rising 5.45%. An Investor Day announcement and the Keephills data centre MOU also saw positive reactions, while a preferred share dividend notice on Mar 2, 2026 coincided with a -3.91% move. The DOE order on Centralia Unit 2 follows this ongoing Centralia transition story.
Market Pulse Summary
This announcement centers on a U.S. Department of Energy order requiring Centralia Unit 2 to remain available for operation for 90 days, through June 14, 2026. It fits into TransAlta’s broader Centralia transition, which already includes a tolling agreement to convert the unit from coal to gas. Recent filings show meaningful 2025 cash generation and detailed 2026 guidance, alongside strategic moves in data centres and acquisitions. Investors may watch for follow‑up communications on how this mandate interacts with the existing Centralia plan.
AI-generated analysis. Not financial advice.
CALGARY, Alberta, March 17, 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 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 US | Phone: 1-855-255-9184 |
| Email: investor_relations@transalta.com | Email: ta_media_relations@transalta.com |
FAQ
What did TransAlta (TAC) announce about Centralia Unit 2 on March 17, 2026?
How long must Centralia Unit 2 remain available under the DOE order for TAC?
Will the DOE order change TransAlta’s operational control of Centralia Unit 2 (TAC)?
What steps is TransAlta (TAC) taking after receiving the DOE order for Centralia Unit 2?
Does the DOE order for Centralia Unit 2 affect TransAlta (TAC) timelines beyond June 14, 2026?
