Beyond Batteries: Other Ways to Capture and Store Energy
"Eagle Crest Energy Co. plans to build a $2 billion pumped-hydropower facility at an abandoned iron mine east of Palm Springs, Calif. The plant would have a capacity of 1,300 megawatts, enough to power nearly one million homes, and would be able to generate power for about 10 hours at a time. The plant could soak up excess power overnight, when demand is slack, and during the day, when California’s solar farms are churning out electricity, and then return the juice in the evening, after the sun sets and power use rises in cities and towns. Several similar projects are awaiting government permits."
Read more: Wall Street Journal | May 21, 2017