Researched
Pumped-Storage Hydropower
Surplus power pumps water uphill and later runs it back through turbines: the oldest and still largest way to store grid electricity.
Open in the interactive tree →The first pumped-storage plants appeared in Italy and Switzerland in the 1890s. Pumped storage still holds most of the energy stored on the world's power grids.
Prerequisites
Unlocks
- Stable 100% Renewable GridopenPumped hydro is today's main grid storage for variable sources
Sources
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