FERC Accepts Tri-State’s New Wholesale Electric Service Contracts and Amended Board Policy Expanding Member Flexibility  

(August 5, 2025, Westminster, Colo.) — The Federal Energy Regulatory Commission (FERC) has accepted Tri-State Generation and Transmission Association’s new Wholesale Electric Service Contracts (WESCs) and an amended Board Policy 115, effective August 6. The filings are set for settlement and hearing procedures and are subject to refund.  

The newly accepted contracts and policy mark a significant step forward in providing greater flexibility for Tri-State’s utility members and allows Tri-State to optimize its resource and financial planning for the future. Thirty-six Tri-State members, representing 98% of the association’s total continuing load, have executed the new contracts, which include terms of either 2050 or extending to 2066. Under the revised Board Policy 115, members can now self-supply up to 20% of their energy needs through distributed or renewable generation, a substantial increase from the previous 5% allocation.    

“FERC’s acceptance of the new WESC and revised Board Policy 115 delivers certainty and opportunity to Tri-State and our members,” said Duane Highley, Tri-State Chief Executive Officer. “Together, we remain committed to delivering reliable, affordable power to rural communities for generations to come.”  

Tri-State continues to work collaboratively with its members to ensure a resilient and responsible energy future.  

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About Tri-State   

Tri-State is a power supply cooperative, operating on a not-for-profit basis, serving electric distribution cooperatives and public power district member-owners in four states. Together with our members, we deliver reliable, affordable and responsible power to more than a million electricity consumers across nearly 200,000 square miles of the rural West. Visit www.tristate.coop.   

Contact:   

Amy Robertson, 303-254-3743, amy.robertson@tristategt.org   

Mark Stutz, 303-254-3183, mstutz@tristategt.org   

Certain information contained in this press statement are forward-looking statements including statements concerning Tri-State’s plans, future events, and other information that is not historical information. These forward-looking statements are subject to a number of risks, uncertainties and assumptions, including those described from time to time in Tri-State’s filings with the Securities and Exchange Commission. Tri-State’s expectations and beliefs are expressed in good faith, and Tri-State believes there is a reasonable basis for them. However, Tri-State cannot assure you that management’s expectations and beliefs will be achieved. There are a number of risks, uncertainties and other important factors that could cause actual results to differ materially from the forward-looking statements contained herein.