Energy Economics
Coal in India's Energy Mix
Why coal still supplies most of India's electricity, the economic and environmental trade-offs, and how India is balancing growth with a shift to clean energy.
Coal has long been the backbone of India’s electricity supply. Even as renewable energy grows rapidly, coal-fired power plants still generate around 70 percent of India’s electricity.
Why coal dominates
- Domestic reserves: India has large coal reserves, reducing reliance on imports for energy security.
- Existing infrastructure: a large fleet of coal plants, mines and rail links.
- Reliable supply: coal plants can run day and night, unlike solar.
- Jobs: coal mining and related industries employ many people, especially in states like Jharkhand, Odisha and Chhattisgarh. Coal India, the state-owned company, is one of the world’s largest coal producers.
The costs
- Air pollution: coal plants emit particulate matter and sulphur dioxide, contributing to India’s severe air pollution and health problems.
- Climate: coal is the most carbon-intensive fuel. India is the world’s third-largest emitter of greenhouse gases overall, though its emissions per person are well below the world average.
- Water use: coal plants need large amounts of water for cooling.
India’s targets
India aims to reach 500 gigawatts of non-fossil fuel electricity capacity by 2030 and net zero emissions by 2070. Renewable capacity, especially solar, has grown rapidly. But with electricity demand rising fast, India has also continued adding coal capacity to ensure reliable supply.
Solar power floods the grid at midday but disappears after sunset, exactly when households switch on lights, fans and appliances. Until battery storage becomes cheap and widespread, coal plants help meet this evening peak. This is one reason India is expanding both solar and coal in the near term.
The just transition
As coal declines in the long run, coal-dependent regions face the loss of jobs and government revenue. Economists and policymakers discuss a just transition: helping workers and communities shift to new industries.
India's electricity demand is growing fast, and many people still use little electricity. Replacing coal requires massive investment in renewables, storage and grids, and support for coal regions. The transition is under way but will take decades.
- Coal generates around 70 percent of India's electricity.
- Domestic reserves, infrastructure, reliability and jobs sustain coal's role.
- Coal causes air pollution, emissions and heavy water use.
- India targets 500 GW of non-fossil capacity by 2030 and net zero by 2070.
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