One of the most efficient ways to store energy is to pump water from one reservoir to another higher reservoir. The energy used in the pumping can then be recovered at a later time by releasing the ...

ELY, Nevada—The smell of piñon pine filled the air as the Ghost Train of Old Ely rolled to a stop between the Duck Creek Range and another railway. Two peaks of jagged limestone towered above the ...

Scientists have simulated the addition of floating solar panels to Switzerland’s Etzelwerk, an open-loop pumped-storage hydropower plant. Using 10% of the upper reservoir for the solar panels, the ...

About this time last year, I published an article on Hydro Review where I asked: “Who will build the first new pumped storage hydro in the U.S.?” In that article, I didn’t really provide an answer to ...