Taking into account conversion losses and evaporation losses from the exposed water surface, energy recovery of 70–80% or more can be achieved. This technique is currently the most cost-effective means of storing large amounts of electrical energy, but capital costs and the necessity of appropriate geography are critical decision factors in selecting pumped-storage plant sites.
We have a lot of dams, but I haven’t heard that we were pumping water into the reservoirs.
We also don’t have, like, fields of solar panels, as far as I know. I think it’s too cloudy here. But we have wind turbines, especially in coastal areas.
[yes](> https://en.wikipedia.org/wiki/Pumped-storage_hydroelectricity)
Oh wow, I had no idea this existed. Awesome!
Wait Are these not common where you are?
We have a lot of dams, but I haven’t heard that we were pumping water into the reservoirs.
We also don’t have, like, fields of solar panels, as far as I know. I think it’s too cloudy here. But we have wind turbines, especially in coastal areas.