Some Indian solar factories now sit idle, waiting up to eight months for a part the country does not make enough of. The part is the solar cell. The policy that created the wait was supposed to protect them.
From 1 June, many government-backed solar projects have been required to use solar cells manufactured in India. The goal is to build a stronger domestic supply chain and reduce dependence on Chinese imports. India still relies on China for around 95% of its solar cell imports, which explains why the government wanted a change.
The trouble is arithmetic. India makes plenty of solar panels but not enough of the cells that go inside them. Panel factories grew large. Cell factories did not keep pace. The government set a rule that assumed a supply the country had not yet built. Who checked whether the cells existed before the deadline arrived?
The damage is already visible. According to the All India Solar Module Manufacturers Association, nearly one-third of the country's small and medium-sized solar panel manufacturers have stopped production. Many others have cut operations. Manufacturers without their own cell-making facilities, the smaller players, are the ones waiting up to eight months for domestic supplies. The firms with in-house cell lines are better placed. The rest are paying for a gap they did not create.
India makes plenty of solar panels, but not enough solar cells that go inside them.
The rule did not open a market for Indian cells. It handed a shortage to the factories that were supposed to benefit from it, and left them to absorb the delay.
Prices are moving too. Panels made with scarce Indian-made cells have become significantly more expensive than those using imported Chinese cells. Project developers estimate costs could rise by around 35% until supplies improve. That figure lands on developers first, then on the agencies that award the projects, and eventually on the buyers of the power.
Speed is not easy to buy back. Building cell capacity takes new factories, and Chinese restrictions on manufacturing technology and equipment are slowing the expansion of those plants. India depends on China for the cells it imports, and it faces Chinese limits on the tools it needs to stop importing them. The supplier it wants to leave also controls the exit.
For working families and small business owners who hope cheaper solar power will ease electricity bills, the delay carries a cost. India wants 500 GW of non-fossil fuel power capacity by 2030, with solar expected to drive much of that growth. If cells stay scarce, project timelines could slip, manufacturers will remain under pressure, and the clean energy transition could slow. Factory workers at idle panel units face a more immediate problem: their employers have stopped producing.
India's renewable energy ambitions now depend not just on installing more solar power, but on building the manufacturing ecosystem needed to support it.
That ecosystem was the policy's stated aim. It arrived as a deadline instead of a foundation.
The idea behind the rule is sound: build a stronger domestic supply chain. But a supply chain cannot be ordered into existence on 1 June. Until the cells arrive, the factories that were meant to anchor the new industry are the ones going dark.