Energy storage: The way ahead for India's energy journey

A recent TERI study has found that total system costs do not rise with the share of renewables going up to 40 per cent. The challenge is meeting the demand for electricity without burning coal when the sun is no longer shining and the wind is not blowing. Last year, bids were invited for storage by SECI (Solar Energy Corporation of India) and the results were very encouraging. The combined rates of renewable energy with storage were comparable with the rates from new coal based thermal power plants. Of the two successful bids, one planned to use pump storage and the other, battery storage.