California Pushes The Envelope on Energy Storage with New Pumped Hydro Proposal

If the blowup over President Trump’s new solar tariff proves anything, it proves that the renewable energy transition is inevitable. A new hydroelectricity project for the City of San Diego, California is a case in point. The city recently raised the level of an existing hydropower dam to hold more water, and now it is considering a massive new energy storage element that would help the grid support more wind and solar power.