4 ms·

Similar gravity store: https://aresnorthamerica.com https://aresnorthamerica.com . Also flywheels, molten salts.

• sliken 6y ago
  Sure, but hydro is pretty unique in that the hydro dams, generators, and grid connections already exist and it can store well enough to not recharge just for hours/days/weeks, but even months.
  • therealdrag0 6y ago
    Isn’t existing hydro already utilized? I don’t get how that helps us scale it up to replace fossil fuels?
    • sliken 6y ago
      Not really, it's typically water limited and not run full out. If water was pumped up during sunny (or windy) days when there's a surplus you could reuse the same water over and over again.