The Springerville closure is the latest in a series of coal plants to close. Four others in the Mountain West were shut down ...
Two coal plants in rural Arizona are a step closer to converting to natural gas production. The Arizona Corporation Commission gave its official signoff during a Wednesday meeting. Tucson Electric ...
Energy regulators in Arizona have given the go-ahead to convert several units at two coal-fired power plants in the state to ...
Arizona regulators just approved converting two major coal plants to natural gas.