APS Cholla Power Plant

Joseph City

Cholla Power Plant

The 995-megawatt Cholla Power Plant is located in northeastern Arizona in Joseph City. APS ( Arizona Public Services ) operates the plant and owns Units 1, 2 and 3, which are capable of producing 615 megawatts of electricity. PacifiCorp (PAC) owns the 380-megawatt Unit 4 - the largest unit at the plant. The two utilities participate in a seasonal power exchange in which PAC customers in the Pacific Northwest receive electricity from the APS system in the winter when their electricity demands are high and APS receives PAC power in the summer, during APS' peak demand.

Cholla is fueled by coal from the McKinley Mine in New Mexico.

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