Solar and wind farms are good at generating electricity, given that the sun is up and the winds are blowing. However, when the sun and the wind disappear for days at a time, these farms become less useful. This is the problem the Germans call “dunkelflaute,” which means “dark doldrums.”
For Los Angeles, salt may be a solution.
One hundred miles south of Salt Lake City, a giant mound of salt reaches thousands of feet down into the Earth. It’s thick, relatively pure and buried deep, making it one of the best resources of its kind in the American West.
Two companies want to tap the salt dome for compressed air energy storage, an old but rarely used technology that can store large amounts of power.
More details of this news over at the Los Angeles Times.
(Image Credit: Luis Sinco / Los Angeles Times)