Germany to use pumped hydro in coal mines to store wind energy

Pumped hydro is a time-tested way to store energy. Excess power is used to pump water uphill into a storage area, usually a lake, then released as needed to power turbines.

Germany plans to use wind energy to pump water into abandoned coal mines inside a mountain for later use. The water will be continuously recycled so it can’t contaminate water supplies.

  • This is such an elegant solution to energy problems. If only we could get more stuff like this going I would be more hopeful about the future of our planet.

    • Stored energy is the Holy Grail for energy, both renewable and otherwise. Once that happens reliably on grid scale, everything changes.