Why is the concept of pumping water uphill not commonly used as a source of electricity generation, similar to pumped-hydro systems?

There are about 4 places where they have large pumped hydroelectric storage in California. A couple...
There are about 4 places where they have large pumped hydroelectric storage in California. A couple...
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I was thinking of this, bc its mostly boys who say such mean things. Ik it hurts even when we know,...
Alan Alda paid tribute to his longtime 'M*A*S*H' co-star Loretta Swit, who died May 30: "A supremely...