The San Diego County Water Authority and the city of San Diego recently are considering a new pumped storage project at the San Vicente Reservoir as a possible means of helping the region meet future energy needs. The backbone of the project would consist of an interconnection and pumping system between the existing San Vicente Reservoir and a new, smaller reservoir located uphill. The pumping system would be used during off-peak energy-use periods to pump water from San Vicente to the new upper reservoir, creating a bank of stored hydroelectric energy that could be released to the lower reservoir. If ultimately built, the project would create up to 500 megawatts that could provide electric grid stability during peak times for energy use.

– via Windpower Engineering & Development


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