- India Wants to Build 10 Gigawatts of Pumped Hydro Storage to Support Solar: As lithium-ion batteries take centre-stage in the global pursuit for efficient energy storage systems, India has quietly readied a plan aimed at creating systems that can store up to 10,000 mw of intermittently generated renewable power at a fraction of the cost the West will bear.
A pumped storage facility consists of two large water tanks at two levels— one at the base of a hill and the other at the top of the hill. During the day, when solar power is generated, a portion of the power will be used to pump water from the lower tank to the higher one. At night, when solar power isn't available, water from the elevated tank will be released to work a turbine and generate power.
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