Tri-State Generation and Transmission Association

We are Tri-State, a not-for-profit, wholesale power supplier to electric cooperatives and public power districts across the Western U.S. Together, we power the potential of nearly one million energy consumers in Colorado, Nebraska, New Mexico and Wyoming. Reliable power is the lifeblood of the rural West, and critical to the future of our communities. That’s why we’ve made it our mission to supply affordable, responsibly-generated power to the farms, ranches, resorts, and small towns that our members serve. Almost 1,000 people carry out our mission around the clock in our four-state region, including our headquarters in Westminster, Colorado.