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The project is expected to come online in 2029 and store enough energy to power around 4,275 homes for 10 hours, Salt River Project said.
Published June 16, 2026
A rendering of the planned Energy Dome project at the Coronado Generating Station in Arizona. Coronado Generating Station is a coal generation site that is undergoing a conversion to natural gas generation. The natural gas conversion is set to be completed by 2029, Salt River Project said in 2025, with all coal generation set to cease by 2032.
Courtesy of Salt River Project
