Responsible for the safe and efficient maintenance and operation of substations.

Tri-State is a wholesale power supply cooperative, operating on a not-for-profit basis, with electric distribution cooperatives and public power district members in four states: Colorado, Nebraska, New Mexico and Wyoming. Together with its members, Tri-State delivers reliable, affordable and responsible power and energy services to nearly a million electricity consumers across roughly 200,000 square miles of the West.
Founded in 1952 by its member systems to provide a reliable, cost-based supply of electricity, Tri-State is now headquartered in Westminster, Colo., employing approximately 1,000 people across five states.
Tri-State's electricity is generated from coal, natural gas, hydropower, wind, and solar. This power reaches members via a transmission system that includes substation facilities, telecommunications sites and almost 6,000 miles of high voltage transmission lines.
As a member-owned and -governed cooperative, every member has a voice and an equal vote in the future of Tri-State.