As India rapidly scales up its renewable energy capacity to meet its climate goals, a key challenge is emerging for its power system — electricity supply that is abundant in some hours but insufficient in others . This is because renewable power generation sources come with a fundamental limitation: They are intermittent. Solar power generation drops to zero after sunset and wind output fluctuates with changing weather. But electricity demand does not always align with these patterns. This creates a growing mismatch between when electricity is generated and when it is needed. This mismatch can stretch the grid and even threaten its stability if not managed properly. This challenge is particularly relevant for India, where renewable sources account for 53% (283 gigawatts) of the total installed power generation capacity of 532 GW. Solar power alone contributes over 150 GW, making it the largest source in the renewable energy mix.…