CORE Electric Cooperative was established in 1938 by a group of local residents. Since then, we have grown to more than 180,000 members, which makes ours the largest electric cooperative in Colorado and one of the largest in the U.S. We are partners to the communities we serve, donating to and supporting hundreds of charitable programs and local nonprofits. CORE Electric Cooperative’s mission is to connect lives and communities through choice and innovation. We seek to provide for the communities we serve — not just through reliable electric service, but also via partnerships with local programs, businesses and organizations.






