3 ms·

Pumped Energy Storage (or rarely: Potential Energy Storage). Aka pumped hydro.

• nine_k 6y ago
  In Switzerland, and maybe in, say, Appalachia, it's an obvious thing to do. But if your land lacks serious mountainous features, like much of Texas, it becomes impractical. It's also seriously more capital-intensive: you need to pour like a million tons of concrete.