Looks like the US has one in Tennessee, place called Raccoon Mountain, in the 1970s. At the time, the power source was to be nuclear. Another large scale project is being built near Seattle, with enough stored energy for 12 hours of electricity for every residence in Seattle. Pretty cool that such a conceptually simple technology can solve these problems.
Looks like the US has one in Tennessee, place called Raccoon Mountain, in the 1970s. At the time, the power source was to be nuclear. Another large scale project is being built near Seattle, with enough stored energy for 12 hours of electricity for every residence in Seattle. Pretty cool that such a conceptually simple technology can solve these problems.