WESTMINSTER, Colo. (AP) – A electricity wholesaler that supplies power to four states is buying a 272-megawatt natural gas-fired power plant in Colorado from affiliates of a private investment group in Connecticut.

Tri-State Generation and Transmission Association, based in the Denver suburb of Westminster, said Tuesday it’s buying the plant from Starwood Energy Group of Greenwich, Conn.

The purchase price wasn’t disclosed. The plant is in Fort Lupton about 25 miles north of Denver.

Tri-State is a not-for-profit association that supplies power to 44 electric cooperatives serving 1.5 million consumers in Colorado, Nebraska, New Mexico and Wyoming.

Tri-State has been purchasing 150 megawatts from the Fort Lupton plant since 2009.

The plant is under contract to provide 122 megawatts to an unidentified third party. Tri-State says that contract will be fulfilled through 2019.

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