[ProtectOurFreedom]

It’s called “pumped hydro” and has been around forever. The “tanks” are upper and lower reservoirs. Pump water uphill at night when power rates are low and there is unused capacity…flow the water downhill through generators the next day from noon to 8 pm.

Simple and effective “battery.” Hard to find sites.

Castaic Lake pumped storage north of Los Angeles. Three new reservoirs are proposed for the California coast to store offshore wind turbine energy.

[Celtic Conservative]

Thanks for the correct terminology. I’ve heard of it only recently.

CC

[Repeal The 17th]

Georgia Power does that here.
Upper lake is Lake Oconee.
Lower lake is Lake Sinclair.

Pump water upstream during low usage hours.
Generate power coming back down during high usage hours.

[Mr Ramsbotham]

A good to way to take unreliable sources of energy and convert them into reliable ones. You could probably do sun and wind to biofuels.

[21twelve]

There was a thread awhile ago about some building that stores energy in the form of gravity. Tall building with a huge mass inside. They lift it up using motors when power rates are low, and then let it slowing go down running generators when the rates are high.

[Elsie]

I shudda read ahead...