“Water battery” being considered on Mokelumne River
[A] developer hopes to submit [an application] by the end of the year [to] utilize excess solar and wind energy to power their pumped storage technology … By using renewable energy to transfer water back and forth between two reservoirs, the project would be a non-consumptive means of using water to generate power. In the case of the Mokelumne Pumped Storage Water Battery Project, the Salt Springs Reservoir has been identified as the lower reservoir, as it already has a small hydro-facility on it that generates about 44 megawatts of energy.