Hardly. Gravity-based energy storage for electricity has been in use since the 1890s. Storing mechanical energy with heavy objects goes back to ancient times.
Hardly. Gravity-based energy storage for electricity has been in use since the 1890s. Storing mechanical energy with heavy objects goes back to ancient times.
About a decade ago, a client hired me to evaluate a start-up in the energy storage field called Advance Rail Energy Storage (ARES). The concept is a variation on the theme of pumped hydro, which currently represents more than 95% …