Renewables growth to bolster need for pumped hydropower storage, developments mainly in Asia

Pumped hydropower storage utilises pumps to drive water to a reservoir at a higher altitude for large-scale long-duration energy storage, and turbines to generate electricity when the stored water is released. Typically, when on-grid electricity demand and prices are low, operators draw electricity from the grid to power pumping systems. Conversely, when demand is high, operators release water to generate electricity either to sell back to the grid or to power their own needs.

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