E.ON North America on Oct. 31 announced it had broken ground and begun construction of Iron Horse, a 10-MW/2.5-MWh energy storage facility being built for Tucson Electric Power.
E.ON North America on Oct. 31 announced it had broken ground and begun construction of Iron Horse, a 10-MW/2.5-MWh energy storage facility being built for Tucson Electric Power.
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