Clean power from the sun and wind is only useful if it can be stored for when it is needed. Jupiter Wagons has won two large battery energy storage projects — 41 MW in Uttarakhand and 50 MW in West Bengal — and is targeting a ₹1,000 crore storage order book by FY27. Big batteries steady the grid, cut blackouts and let India lean more on cheap renewable power, helping keep bills and emissions down.