Water as a Battery: Pumped storage hydropower gets rejuvenated
“When you hear the term “energy storage,” you might picture large lithium batteries housed in shipping containers. While a burgeoning market, it is not the biggest by far. That honor goes to pumped storage hydropower (PSH). The U.S. Department of Energy (DOE) estimates PSH represents 93% of all U.S. utility-scale energy-storage capacity. It has been helping provide clean grid power for over a century. PSH seems to be an energy-storage option hidden under a bushel. The hydropower industry would like to turn that bushel right side up as the energy-storage marketplace grows.”
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