Plains End is a gas-fired internal combustion power plant located in Arvada, Colorado, within the Western Electricity Coordinating Council (WECC) region. The facility boasts an operating capacity of 114 megawatts and is managed by NAES Corporation. It operates under the jurisdiction of the Public Service Company of Colorado and is classified as an unregulated entity. The majority ownership of the plant is held by Tyr Energy, a subsidiary of ITOCHU Corporation. Additional ownership interests are held by Manulife Financial Corporation and The Prudential Insurance Company of America.