India’s solar rollout is accelerating fast, but experts warn a surge in ageing panels could create a major waste crisis, forcing urgent action on recycling and producer responsibility.
India’s rapid expansion of solar energy is powering millions of homes but experts warn the country may be creating a new environmental problem: millions of tons of solar panel waste in the coming decades.
Under Prime Minister Narendra Modi, India aims to generate 500 gigawatts of solar power by 2030, making it one of the world’s fastest-growing renewable energy markets. Solar power has surged thanks to falling costs in solar photovoltaic technology and government incentives for domestic production. Nearly 2.4 million households have already installed solar panels under government subsidy programmes and solar energy now contributes around 20 percent of India’s electricity.
Solar energy is widely seen as a key solution in the fight against climate change, helping reduce dependence on fossil fuels and lower greenhouse gas emissions. But behind this success lies a hidden challenge. Solar panels last 25 to 30 years before their efficiency declines, after which they become waste. Panels contain silicon, glass, aluminium, polymers and sometimes toxic metals like lead or cadmium, making disposal and recycling complex.
Currently, India produces about 100,000 tons of solar waste annually. Experts warn that by 2030, this could rise to 600,000 tons, and by 2047, more than 11 million tons of solar panels may reach the end of their life. Handling this volume safely would require around 300 dedicated recycling facilities and investments of roughly 4,300 crore rupees, or more than 500 million US dollars.
“Solar power gives an illusion of clean energy for two decades, but without a serious plan for recycling panels it risks leaving behind a graveyard of modules and not much of a legacy,” says environment expert Sai Bhaskar Reddy Nakka.
Although India included solar panels under its e-waste regulations in 2022, giving manufacturers responsibility for collection and recycling, dedicated infrastructure remains minimal. Improper disposal could release harmful materials into soil and water, undermining the environmental benefits of solar energy. Experts argue that for India’s renewable energy expansion to support a just transition toward cleaner energy, waste management and recycling must be integral to planning.
Despite the challenges, experts say the problem is not without opportunities. As waste rises, so will the demand for companies that know how to process it, says energy analyst Mr Pahwa. Efficient recycling could reclaim 38 percent of materials for new panels by 2047 and prevent 37 million tonnes of carbon emissions from mining, according to the Council on Energy, Environment and Water.
India already has markets for glass and aluminium and metals found in solar cells, including silicon, silver and copper, can be recovered for new panels or other industries, says Akansha Tyagi, co-author of the study. Currently, most solar waste is processed with basic methods that recover only low-value materials like glass and aluminium, while precious metals are lost, damaged or extracted in tiny amounts.
Experts say the next decade will be decisive for India’s solar goals. The country must act fast, building a regulated, self-sustaining recycling system, raising household awareness and integrating waste collection into solar business models. Companies that profit from solar power should also be responsible for what happens to panels once they stop working, says Mr Nakka. Without proper recycling, clean energy today could mean more waste tomorrow, he warned.
Globally, countries like the United States, Japan and several European nations are already grappling with solar waste. Analysts urge India to invest in robust recycling infrastructure and encourage sustainable panel design, ensuring renewable energy remains truly clean and environmentally responsible, supporting a just transition for workers and communities dependent on the energy sector.
India’s challenge is clear: expand solar power rapidly but plan carefully for the waste it will leave behind, while supporting climate goals and a just transition.
