Non-fossil capacity

Geography glossary

Also called: Non-fossil installed capacity · Topic: Energy Resources of India: Conventional and Non-conventional · NCERT: Beyond NCERT

Meaning

Non-fossil capacity is the total installed power capacity, measured in gigawatts (GW), of all plants that do not burn coal, oil or gas. It covers renewables (solar, wind, small hydro, bio-power), large hydro and nuclear.

It matters because India's climate targets are written in this measure: 50 per cent non-fossil capacity, and 500 GW of non-fossil capacity, both by 2030. The share is also the main yardstick for tracking India's energy transition.

Explanation

What it includes

Fossil fuel means coal, petroleum and natural gas. They formed from buried plant and animal remains, and they are the main source of CO2. Non-fossil capacity is everything outside this group.
The five parts of non-fossil capacity, as of 31 July 2026:
Solar: 164.59 GW. This is the largest part.
Wind: 58.14 GW.
Hydro (large and small): 57.24 GW.
Bio-power: 11.75 GW.
Nuclear: 8.78 GW. This is the smallest part.
Why it is wider than "renewable" capacity:
Nuclear does not burn fossil fuel, but its fuel (uranium, thorium) is exhaustible. So nuclear is non-fossil but not renewable.
Large hydro is counted in non-fossil. But "renewable energy" in the narrow MNRE (Ministry of New and Renewable Energy) sense generally does not include large hydro or nuclear.
Large hydro was declared renewable in 2019, but it is still reported as a separate group.

Capacity, not generation

Installed capacity (GW) is the most power a plant can produce. Generation (GWh or units) is the power it actually produces.
Why the two differ:
A solar plant works only in daylight, and gives less on cloudy days.
A coal plant can run day and night.
So 1 GW of solar gives far fewer units in a year than 1 GW of coal.
Result: in June 2025, non-fossil plants passed 50 per cent of installed capacity. Yet coal still makes about three-quarters of India's electricity.
Curtailment means a solar or wind plant is told to stop generating even though sun or wind is available. It widens the gap further:
About 470 GWh was curtailed on the inter-state grid in Q1 2026, nearly two-thirds of it due to transmission limits.
2.3 TWh of solar was curtailed in 2025, mainly because coal plants could not reduce output fast enough at midday.

How the share grew: targets and milestones

Targets:
500 GW of non-fossil installed capacity by 2030, announced at COP26.
Updated NDC (Nationally Determined Contribution, India's climate pledge under the Paris Agreement), 2022: 50 per cent of installed capacity from non-fossil sources by 2030.
Milestones:
June 2025: 50.08 per cent, which is 242.78 GW of 484.82 GW. This was more than five years ahead of the 2030 NDC target.
31 December 2025: 51.93 per cent, which is 266.79 GW of 513.73 GW.
31 March 2026: 283.46 GW, which is 53.2 per cent of total capacity (CEA data).
31 July 2026: 300.50 GW out of about 552 GW total, or more than 60 per cent of the 500 GW target.
Yearly additions: 29.5 GW in FY 2024–25, then a record 55.29 GW in FY 2025–26.
Who does what:
MNRE is the nodal ministry for the 500 GW target.
The Central Electricity Authority (CEA), under the Ministry of Power, publishes installed-capacity data.

Conditions it needs

Land and strong sunlight or wind. Rajasthan, Gujarat and Tamil Nadu have the most.
Transmission lines to carry the power. In the past five years, India built only about 80 per cent of its yearly transmission targets.
Buyers who sign power purchase agreements (PPAs). About 45 GW of awarded renewable capacity had no signed PPA, 18.75 GW of it in Rajasthan.
Storage (batteries, pumped storage) so that daytime solar can meet the evening peak in demand.

Where it occurs

Solar parks:
Bhadla Solar Park: about 2,245 MW in Jodhpur district, Rajasthan (Thar Desert).
Pavagada (Karnataka), Kurnool (Andhra Pradesh) and Rewa (Madhya Pradesh).
Khavda Renewable Energy Park (Rann of Kutch, Gujarat): solar plus wind, about 30 GW over 538 sq km.
Floating solar: Omkareshwar on the Narmada (Madhya Pradesh) and NTPC Ramagundam (Telangana).
Wind:
The Nagercoil–Madurai belt in Tamil Nadu, including Muppandal, where wind is funnelled through the Aralvaimozhi gap.
Jaisalmer (Rajasthan).
Offshore wind zones off Gujarat and Tamil Nadu.
Hydro:
Bhakra Nangal, the Damodar Valley Corporation and Kopili (Assam).
Subansiri Lower (2,000 MW, NHPC) on the Arunachal–Assam border, India's largest hydro project.
Arunachal Pradesh has the largest share of untapped hydro potential.
Nuclear:
Tarapur (Maharashtra, the first, 1969), Rawatbhata (Rajasthan), Kalpakkam and Kudankulam (Tamil Nadu), Narora (Uttar Pradesh), Kaiga (Karnataka) and Kakrapar (Gujarat).
The Prototype Fast Breeder Reactor is at Kalpakkam.
Distributed (small-scale) capacity:
PM Surya Ghar (2024): rooftop solar for homes.
PM-KUSUM (2019): solar pumps and small plants for farmers.
Transmission: the Green Energy Corridor (2015) carries renewable power from Rajasthan, Gujarat, Tamil Nadu and Karnataka into the national grid. A separate line will bring 13 GW from Ladakh.

Don't confuse with

Renewable capacity: this leaves out nuclear and, in the narrow MNRE sense, large hydro. "50 per cent non-fossil" does not mean "50 per cent renewable", and the 500 GW target is not a "500 GW renewable" target.
Non-fossil generation share: this is the share of electricity actually produced (units), and it is well below 50 per cent. The NDC milestone counts installed capacity only.
Non-conventional energy sources: this is an NCERT grouping, not a capacity measure. Class 10 lists atomic energy as non-conventional, while Class 12 calls nuclear minerals conventional. Either way, nuclear counts as non-fossil.
Emission-intensity target: the same 2022 NDC promises a 45 per cent cut in emission intensity (emissions per unit of GDP) from the 2005 level. That is a separate goal from the 50 per cent capacity share.

Prelims Hooks

India reached 50 per cent non-fossil installed capacity in June 2025, more than five years before the 2030 NDC deadline.
The 500 GW non-fossil by 2030 target was announced at COP26. The nodal ministry is MNRE, not the Ministry of Power or MoEFCC.
Installed-capacity data come from the CEA, under the Ministry of Power.
Ranking of non-fossil parts (31 July 2026), largest to smallest: solar > wind > hydro > bio-power > nuclear (8.78 GW).
Non-fossil capacity crossed 300 GW (300.50 GW) as of 31 July 2026. The record single-year addition was 55.29 GW in FY 2025–26.
Trap: "Non-fossil capacity crossing 50 per cent means non-fossil sources make half of India's electricity" is FALSE. Coal still makes about three-quarters of the electricity.

Mains Points

Capacity milestones do not automatically cut carbon in power generation.
Solar and wind produce less per GW than coal, and some of their output is curtailed because transmission lines lag behind.
Coal plants also cannot ramp down (reduce output quickly) when solar peaks at midday.
So storage (batteries, pumped storage), the Green Energy Corridor and flexible grid operation matter as much as adding more panels.
Reaching 500 GW is a bigger task than the 50 per cent target.
About 200 GW must still be added by 2030, at roughly the FY 2025–26 pace every year.
Two things hold this back:
- Awarded projects with no buyer (about 45 GW without signed PPAs, mostly because state DISCOMs, the power distribution companies, delay signing).
- Imported key solar components, despite PLI (Production Linked Incentive) support.
The spread of non-fossil capacity has regional effects.
Most of it sits in sunny, windy western and southern states (Rajasthan, Gujarat, Tamil Nadu) and in Himalayan hydro (Arunachal Pradesh).
This raises problems of land, Great Indian Bustard deaths on power lines, displacement by dams, and GLOFs (glacial lake outburst floods).
Meanwhile, coal districts in Jharkhand, Chhattisgarh and Odisha need a just energy transition: retraining, new industries and reuse of mine land.

Energy Resources of India: Conventional and Non-conventional