Two reservoirs at different heights are used; water is pumped up and released down.
Each time water goes down, it turns a turbine that makes electricity.
India wants about 500 gigawatts of renewable power by 2030, and water batteries help balance supply.
Around 7 gigawatts of pumped storage already work, with more than 15 gigawatts being built.
The government offers special rules and financial help to speed up new projects.
Pumped storage hydropower works like a giant water battery, moving water uphill when there is spare power.
When electricity demand rises, the water runs downhill through turbines to generate power.
This method can store large amounts of energy for many hours, unlike small batteries.
The country plans to add many more water‑battery projects to reach its clean‑energy goals.
Want to learn even more? Click here to read the full story!