Tri-State Generation and Transmission Association, Inc. is a not-for-profit cooperative power supplier that has been powering the rural West since 1952. With 43 electric cooperatives and public power districts as members, we provide reliable, affordable, and responsible electricity to more than one million consumers across Colorado, Nebraska, New Mexico, and Wyoming.

What sets us apart is our commitment to putting our members' needs first. As a member-owned and governed organization, our decisions are guided by the best practices of the utility industry and the financial principles that ensure our members' satisfaction.

We generate, transmit, and manage energy responsibly and efficiently, utilizing a combination of renewable sources like hydropower, wind, and solar, as well as a fleet of coal and natural gas power plants. Our comprehensive Environmental Management System ensures compliance with the highest standards of federal and state clean air and water protection.

By prioritizing optimized energy management, we guarantee that our members have the reliable, low-cost energy they need not only today but also in the future. Trust in Tri-State to be your dependable power supplier in the rural West.