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Carbon avoided

How much CO2 India’s renewables kept out of the air, year by year.

Updated 6 November 2026.

320 Mt
of CO2 avoided by renewables, including large hydro, in FY2025-26

207.6 Mt without large hydro. Up from 285 Mt in FY2024-25. Source: CEA generation × CEA grid factor.

Year by year

CO2 avoided rose by more than half in six years: from 208.3 Mt in FY2019-20 to 320.5 Mt in FY2025-26.

BioSolarWindSmall hydroLarge hydro
0100200300400FY19-20FY20-21FY21-22FY22-23FY23-24FY24-25FY25-26320 Mt
010020030040019-2020-2121-2222-2323-2424-2525-26320 Mt
Show the numbers
YearBioSolarWindSmall hydroLarge hydroTotal
FY2019-209.735.545.86.7110.4208.3
FY2020-2110.342.242.07.2104.9206.6
FY2021-2211.452.248.87.4107.8227.7
FY2022-2311.573.051.48.0116.1260.0
FY2023-2410.484.360.66.997.5259.6
FY2024-259.3102.359.28.2105.5284.5
FY2025-269.5118.072.08.1112.9320.5

Million tonnes of CO2 avoided, including large hydro: generation (CEA) × that year’s CEA weighted-average grid factor. Large hydro is shown in deep blue at the base, so the total without it can be read off.

How it’s calculated
474.75 BU×0.675=320.5 Mt

Renewable generation including large hydro, FY2025-26 (CEA) × tCO2 per MWh (CEA v22.0) = CO2 avoided. Without large hydro: 307.55 BU, 207.6 Mt.

0600120018002023203020352050Current pace838 MtFaster shift329 Mt
0600120018002023203020352050Current pace838 MtFaster shift329 Mt
Show the numbers
YearCurrent pace (Mt)Faster shift (Mt)
20231,4241,424
20301,5791,442
20351,402982
2050838329

Power-sector CO2, million tonnes a year. Source: IEA, World Energy Outlook 2024, Table A.30 (CC BY-NC-SA 4.0): Stated Policies (current pace) and Announced Pledges (faster shift).

The cost of waiting

What waiting would cost.

Two paths published by the IEA: on the current pace, India’s power sector emits 838 million tonnes of CO2 a year by 2050; with a faster shift, 329. The gap is CO2 India can still avoid.

How we measure this

What this covers, and what it leaves out.

CO2 avoided = renewable generation (CEA) × the CEA weighted-average grid emission factor for the same year. The headline includes large hydro; the figure without it is shown alongside.

Sources
  1. Central Electricity Authority (CEA), Ministry of Power, Monthly Renewable Energy Generation Report (Broad Overview), March 2021 edition
  2. Central Electricity Authority (CEA), Ministry of Power, All India Electricity Statistics: General Review 2025, Data to FY2023-24, November 2025
  3. Central Electricity Authority (CEA), Ministry of Power, CO2 Baseline Database for the Indian Power Sector, Version 22.0, August 2026
  4. Central Electricity Authority (CEA), Ministry of Power, Broad Overview of Monthly Renewable Energy Generation, March 2023 edition
  5. Central Electricity Authority (CEA), Ministry of Power, Broad Overview of Monthly Renewable Energy Generation, March 2024 edition
  6. Central Electricity Authority (CEA), Ministry of Power, Broad Overview of Monthly Renewable Energy Generation, March 2026 edition (full year FY2025-26, with FY2024-25 for comparison), dated 5 May 2026
  7. International Energy Agency (IEA), World Energy Outlook 2024, 2024 edition; Annex A licensed CC BY-NC-SA 4.0
Read next
How much CO2 did India’s renewables avoid? Our method, step by step
The monthly reading
India’s units, once a month.

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