Geothermal and Hydro are steady sources, not intermittent, so that’s why you don’t need a lot of storage. The hydro dam is the storage. Geothermal also isn’t r

Geothermal and Hydro are steady sources, not intermittent, so that’s why you don’t need a lot of storage. The hydro dam is the storage. Geothermal also isn’t renewable unless used very very sparingly, most installations I know of will deplete the source in a few decades, perhaps a century.