>>12089864Electricity is a way of transferring energy. Energy can be stored in water and humanity's first source of non-living mechanical energy (water wheels).
Most energy storage these days is still done with water, where it is pumped up to a higher level when power is cheap (during the day for solar) and then flowed down through turbines to generate electricity overnight/as needed.
https://simple.wikipedia.org/wiki/Hydroelectricity hopefully this is understandable for you OP.
