The Public Service Commission of Wisconsin (PSCW) approved two Alliant Energy battery energy storage projects totaling 175 megawatts (MW), according to a recent press release. The approval clears the way for construction to begin on the 100-MW Grant County Battery Project and 75-MW Wood County Battery Project. They will be located alongside the company’s Grant County and Wood County solar sites. The integration of these battery systems with Alliant Energy’s utility-scale solar sites increases customer access to safe, reliable energy even when the sun isn’t out.
Alliant Energy expects to begin construction on both battery projects in early 2024. The Wood County project in the town of Saratoga is expected to be operational by the end of 2024, while the Grant County project in the town of Potosi is expected to be operational by mid-2025. They will have the capacity to power over 80,000 homes for four hours and 100,000 homes for four hours, respectively. Alliant Energy selected FlexGen, an energy storage solution and software technology provider, to provide the energy management system and battery energy storage equipment.
