Pumped hydro could deliver 100 percent renewable electricity

        April 3, 2019 Green Car Reports | Global | storage: pumped hydro

Electric storage beyond batteries is needed in a 100%-renewable power grid. An ANU study showed 530,000 sites for pumped storage hydro (22 million GW!) that raises water during low demand and releases it as needed (potential to kinetic energy) improving grid reliability (no new power is produced). In 2014, only 24 GW PSH operated at 40 US sites.