Tri-State Generation and Transmission Association, Inc. is a not-for-profit cooperative power supplier. Our mission is to provide our member systems a reliable, affordable and responsible supply of electricity in accordance with cooperative principles.
We are a cooperative of 45 members, including 42 electric distribution cooperatives and public power districts in four states that together provide power to more than a million electricity consumers across nearly 200,000 square miles of the West.
What makes us unique among utilities is that cooperatives like Tri-State are member-owned and governed and operate on a not-for-profit basis. Our governing decisions are based on sound financial principles, utility industry best practices and, most importantly, the needs of our member