Blitz India Business
NEW DELHI: India has solved the cost of building clean capacity. It has not yet solved the cost of having that capacity available at eight in the evening — and that, not gigawatts, is the economics of the next decade.
Non-fossil installed capacity reached 300.50 GW on 31 July 2026, more than 54 per cent of a roughly 552 GW base, with solar at 164.59 GW and wind at 58.14 GW. Renewable generation rose from 190.96 billion units in 2014-15 to 477.79 billion units in 2025-26. Put those two series side by side and the structural fact emerges: capacity has multiplied faster than generation, because a solar fleet has a capacity utilisation factor in the high teens to low twenties and a coal fleet does not. This is not a failure. It is the arithmetic of the technology, and it is why the transition’s second half costs differently from its first.
The first half was a procurement story and India ran it exceptionally well: competitive auctions, falling module costs, and tariffs that made new solar cheaper than new coal. The second half is a systems story, and systems are priced differently. What a distribution company actually needs is not energy but firm energy — a megawatt it can count on during the evening peak, when solar has gone and demand has not. Supplying that means storage, and storage is bought in hours rather than in gigawatts. A four-hour battery attached to a solar plant changes the delivered tariff materially, which is why round-the-clock and storage-linked tenders have been displacing plain-vanilla capacity auctions.
Where the next decade is priced: renewable generation reached 477.79 billion units in 2025-26 against 190.96 billion in 2014-15 — a slower multiple than capacity, by design of the technology.
Nobody buys electricity. They buy electricity at a particular hour, and that is a different product.
At a Glance
• Non-fossil capacity: 300.50 GW, 31 July 2026
• Total installed base: about 552 GW
• Non-fossil share: more than 54 per cent
• Against the 2030 target: past 60 per cent of 500 GW
• Solar: 164.59 GW · Wind: 58.14 GW
• Renewable generation, 2025-26: 477.79 billion units
• Renewable generation, 2014-15: 190.96 billion units
• Global position: third in installed renewable capacity
• The constraint ahead: firm evening supply — storage, transmission, discom balance sheets
Three balance sheets decide how expensive that second half becomes. Transmission is the first: a line built after a generation asset strands the asset, and India’s renewable-rich states are not its demand-rich ones. Storage is the second, and the useful policy question is whether it is procured as a service — paid for availability across a defined window — rather than as hardware bought with a capital subsidy, because the service model puts the performance risk on the party best able to manage it. Distribution company finances are the third, and the most consequential: a discom that cannot pay reliably cannot sign a fifteen-year contract, and every storage-linked tariff in the country ultimately rests on that signature.
The constructive case is strong and does not depend on optimism. India has built 164.59 GW of solar from 2.8 GW in twelve years, it ranks third worldwide in installed renewable capacity, and it is past 60 per cent of a 2030 target that looked ambitious when it was set. That record was produced by getting the market design right — transparent auctions, bankable contracts, credible counterparties — and the same instrument is available for the harder problem. Price the hour rather than the unit, build the wire ahead of the panel, and fix the discom balance sheet, and the 500 GW target for 2030 becomes a scheduling exercise rather than a stretch. The engineering is settled. What remains is contract design, which India has already proved it can do.