Comanche Station is the largest power plant in Colorado. It is located near Evraz Steel Mill, which is the single largest commercial account for Xcel Energy in Colorado.
The addition of Unit 3 marked Colorado’s first advanced, highly efficient, supercritical coal unit which can generate more electricity with less fuel. That saves customers money because it displaces higher cost electric generating units and provides greater operating flexibility. Xcel Energy has two partners in Unit 3: Intermountain Rural Electric Association (IREA) of Sedalia, Colo. (25 percent) and Holy Cross Energy (8 percent). Xcel Energy operates the entire plant.
Comanche Station controls air emissions with multiple technologies. Baghouses on all three units act like giant vacuum cleaners, removing more than 99 percent of particulate emissions from the flue gas. All units have low-nitrogen oxide (NOX) burners to control NOX, and lime-spray dryers to control sulfur dioxide (SO2) emissions. Activated carbon injection is used to control mercury emissions on all three units. Comanche Station is the first plant in Colorado to control mercury emissions.
Unit 3 has a selective catalytic reduction (SCR) system to also reduce NOX emissions. As a result of the plant’s environmental improvements, overall emissions at Comanche Station are lower, even with an additional unit on line.
Comanche also has implemented a variety of water conservation projects to significantly reduce overall water consumption.
Comanche Station is an active member of the Pueblo community, providing public tours for community groups and hosting open houses for local residents. The plant works with a neighboring nonprofit, the El Pueblo Boys and Girls Ranch, providing support for various events such as hosting fishing days for the students. Comanche employees support a variety of other causes, including:
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