Cooperative Information

CORE Members


AS OF DEC. 31, 2021

Service Area


Square Miles

2021 Energy by Source






Natural Gas

CORE Electric Cooperative serves more than 165,000 members along Colorado’s Front Range. Our nearly 5,000-square-mile service area includes portions of 11 counties to the east, west and south of Denver.

We are the largest electric distribution cooperative in Colorado, and one of the largest in the U.S. As a member-owned cooperative, CORE operates on a not-for-profit basis. Earnings beyond expenses are invested in the infrastructure used to provide reliable electric service or booked as member equity. Some of this equity is typically returned to members each year as capital credit refunds.

CORE is governed by an elected board of directors. Our service area is divided into seven geographic districts based on population. Members within each district elect a fellow member to serve on the board and represent their interests regarding CORE business and policies, including service rates and regulations.

CORE purchases wholesale power under long-term agreements with several providers. We also purchase the output of several utility-scale solar facilities, and own and receive a share of the generated power from the Xcel-operated Comanche Unit 3, a supercritical, pulverized coal plant in Pueblo.

CORE’s headquarters is located in Sedalia, about 20 miles south of Denver, and our district offices are in Bennett, Conifer and Woodland Park.

* Renewables accounted for an atypical share of our 2021 energy sources due to a prolonged outage of the Comanche 3 power plant.