Summary:
How much additional coal power capacity might India need by 2035?
India will need to add 105-150 gigawatts (GW) of coal-based power generation capacity by 2035, much more than previously planned as electricity demand keeps rising. The Central Electricity Authority (CEA) on October 13, 2026, said the country may have to revise its capacity expansion plans to ensure uninterrupted power supply.
The re-evaluation comes at a time when electricity consumption is up, hydropower generation is down and dependence on thermal power plants to meet round-the-clock demand is increasing.
Why is India building more coal power?
India’s earlier plan for expansion of electricity capacity proposed setting up about 97 GW of coal-based generation capacity starting March 2023 to reach a total installed coal capacity of about 307 GW by 2035.
However, higher-than-expected growth in electricity consumption could raise the additional capacity requirement to 105–150 GW.
India has an installed coal-based power capacity of about 230 GW.
The CEA said the daily peak of electricity demand has been around 45,000-50,000 megawatts (MW) higher than this time last year.
This has been caused by the increase in power consumption due to growing industrial activity, urbanization, increased use of electrical appliances and rising cooling requirements.
Coal-fired generation remains important because it can produce electricity on a continuous basis, unlike solar and wind power, whose output depends on the weather.
Hydropower Output Drops, Electricity Shortage Widens
Hydropower generation has been constrained by the weaker monsoon, adding to the burden on coal-fired power plants.
India’s electricity deficit in September 2026 was around 560 million units (kWh), the highest monthly level since August 2023.
In the same month, electricity generation from coal went up 13.3% YoY, while hydropower generation fell 20% YoY.
The deviation shows that thermal power stations had to compensate for lower power generation from other sources.
The key developments are:
| Details | Recent Figures |
| Existing Coal Power Capacity | ~230 GW |
| Previous Capacity Addition Target | 97 GW by 2035 |
| Updated Possible Addition | 105-150 GW |
| Target Total Capacity in the Past | ~307 GW |
| Daily Peak Demand Increase | 45,000–50,000 MW |
| September Electricity Shortage | 560 million units |
| Coal Generation Growth | +13.3% YoY |
| Hydro Power Generation | -20% YoY |
In addition, increased use of coal plants has also stressed fuel stockpiles and limited the ability to schedule maintenance.
Will expansion of coal affect renewable energy plans?
In India, renewable energy installations are expected to continue rising even as coal-based generation capacity may increase.
The country added around 50 GW of renewable energy capacity last year and annual additions are expected to remain above 50 GW.
Solar and wind are central to India’s long-term energy transition. But the variable generation patterns are problematic in times of high demand for electricity.
Part of the answer may lie in grid-scale battery storage, pumped-storage hydropower and nuclear generation.
India has also faced issues in transmitting renewable electricity from the generation centers to the major consumption areas, making development of grid infrastructure all the more important.
Thus the planned increase in coal capacity is a response to the need to keep the electricity supply reliable while the renewable infrastructure is being built.
What it means for the power sector in India?
A greater need for coal capacity could mean more investment in thermal power projects, power equipment manufacturing, transmission infrastructure and related engineering services.
If the revised capacity plans translate into approved projects, there could be additional business opportunities for companies involved in boilers, turbines, generators and power plant construction.
But scaling up coal-based generation will require large capital outlays, assured fuel supplies and time-bound environmental clearances.
Rising coal use also leads to worries about emissions and long-term energy transition in India.
What Comes Next?
India’s power demand is growing faster than expected earlier, making reliable generation capacity increasingly important.
It is still an assessment, not a final approved expansion target, for up to 150 GW of coal capacity to be added by 2035.
In future, decisions will be made on the basis of trends in electricity demand, renewable energy additions, fuel availability and grid stability requirements.
