The inside of Empire Mine Shaft allows access for visitors to see the underground work. There are an estimated millions of mineshafts that descend deep into the Earth all across the globe, making it an attractive and untapped solution for energy storage via gravity batteries. (Credit: Matthew W Cummins/cc-sa-3.0)
Capacitors, acid batteries, and other methods of storing electric charges all lose energy over time. These gravity-fed batteries won’t.
Back in the 1950s, 1960s and 1970s, humanity had a golden window to revolutionize how we handled energy all across the globe. The dangers of…
