[perrygeo]

If you've got property with a slope you can build a gravity battery. Pump water and store it uphill, later release the water and spin a turbine to recover a portion of the energy.

[mogoman]

Would pumping up into a tank in the roof work? Any idea of the amount of energy vs weight can be stored?

[toomuchtodo]

https://hackaday.com/2021/10/08/power-your-home-with-a-water...

https://youtu.be/CMR9z9Xr8GM