Borrowing from pumped hydro energy storage principles, a Swiss startup is building energy storage systems using concrete blocks and cranes instead of water and dams. The low cost innovation uses allows the storage of excess energy by using it to power cranes to lift massive concrete blocks. When the energy

“With wind and solar farms sprouting up in more areas — and their power getting priority to feed into the grid in many places — the amount of electricity being generated is outstripping demand during certain hours of the day. The result: power prices are slipping to zero or even