Solar power accounted for 26.5% of India’s total installed power capacity and 52.7% of the total installed renewable energy capacity as of December 2025. Solar installations rose 8.8% quarter-over-quarter (QoQ) and 39.6% year-over-year (YoY).

India’s renewable energy capacity, including large hydroelectric projects, reached 258.3 GW by the end of Q4 2025, accounting for 50.2% of the country’s total installed power capacity, based on data from the Central Electricity Authority (CEA), the Ministry of New and Renewable Energy (MNRE), and Mercom’s India Solar Project Tracker.

Renewable energy now accounts for more than half (50.2%) of India’s overall power mix, highlighting the country’s sustained progress towards the 2030 non-fossil fuel-based energy targets.

In the previous quarter ending September 2025, renewable energy capacity with 245.1 GW accounted for 49.1% of the power mix. Solar power accounted for 25.1% of the total installed capacity and 51% of the installed renewable energy capacity.

At the end of December 2025, renewable energy capacity in the installed power mix increased by 23.5% YoY and 5.4% QoQ.

 

Wind accounted for 10.6% of the cumulative installed power capacity as of December 2025.

Large hydro contributed 9.9% to the power mix with 50.9 GW, up 1.6% from the previous quarter.

Biomass and small hydro contributed 2.1% and 1% to the total installed power capacity as of December 2025, respectively.

Conventional Sources

At the end of Q4 2025, the country’s installed conventional power capacity stood at 255.7 GW, accounting for 49.8% of the total installed power capacity, up from 253.6 GW in the previous quarter. India’s installed conventional power capacity at the end of Q4 2024 was 252.6 GW, accounting for 54.7% to the overall power mix capacity.

Electricity generation from conventional sources continues to be led by coal, which accounts for 42.7% of the power mix, followed by gas at 3.9%, nuclear at 1.7%, lignite at 1.3%, and diesel at 0.11%.

During the quarter, the overall share of conventional power capacity in the total installed mix declined as renewable capacity additions came online. Two large renewable projects were commissioned during the period: THDC’s 250 MW Tehri Pumped Storage Project Unit-3 in Uttarakhand’s Tehri Garhwal district and NHPC’s Subansiri Lower Hydroelectric Project in the northeastern region. These additions to non-fossil fuel capacity reduced the relative share of conventional sources.

However, despite the lower capacity share, electricity generation from conventional sources, mainly coal, increased during the quarter, helping meet rising demand and ensuring grid reliability.

While conventional power continues to hold a significant share of the total installed capacity, its decline reflects the rapid expansion of renewable energy across the country.

In November 2025, the government directed renewable energy implementing agencies to close all legacy bids and cancel the letters of award for all renewable energy projects for which power purchase and power sale agreements are not feasible by November 30, 2025

In the same month, a new staff paper by the Central Electricity Regulatory Commission suggested that grid connectivity for renewable energy projects be given only if they have signed power purchase agreements. As another option, it has been recommended that an auction regime be introduced for all connectivity allocations.

During the Mercom India Renewables Summit 2025, Sudeep Jain, Additional Secretary, MNRE, stated that India has set a target of achieving 1,800 GW of renewable energy capacity by 2047 to meet its increasing power demand.