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Yes. Awhile back I went down the wiki rabbit hole and spent hours reading [about the many pump storage sites around the world.](https://en.wikipedia.org/wiki/List_of_pumped-storage_hydroelectric_power_stations) Another interesting idea is used [at Niagara Falls](https://en.wikipedia.org/wiki/Robert_Moses_Niagara_Power_Plant#Lewiston_Pump-Generating_Plant) where at night water is both pump into the reservoir and diverted from the river above the falls. They can literally “shut off” the Falls at night when tourist activity is lower.
You may also be interested in the various other forms of [energy storage](https://en.wikipedia.org/wiki/List_of_energy_storage_projects). I am particularly fascinated by [solar-molten salt storage.](https://en.wikipedia.org/wiki/Thermal_energy_storage#Molten_salt_technology)