In Short : India’s renewable energy output hit 124.9 billion units in Q1 2025, led by solar with 33.2 BU. Gujarat topped solar generation, while Tamil Nadu led in wind. Total installed renewable capacity reached 178.8 GW, with solar at 89.8 GW. Solar power grew 32.7% year-on-year, now comprising 22% of India’s total installed capacity and nearly half of renewables.
In Detail : India’s renewable energy generation reached 124.9 billion units (BU) during the January to March 2025 quarter, with solar energy emerging as the top contributor at 33.2 BU. Other major sources included wind at 23.2 BU, bagasse-based cogeneration at 11.2 BU, small hydro at 4.4 BU, non-bagasse biomass at 2.3 BU, and waste-to-energy at 0.2 BU.
Among the states, Gujarat led in solar energy generation, producing 6,984 million units (MU), followed by Rajasthan with 5,853 MU and Karnataka with 4,511 MU. In the wind energy segment, Tamil Nadu topped the chart with 7,294 MU, trailed by Gujarat at 4,539 MU and Maharashtra at 3,416 MU.
As of March 31, 2025, India’s total installed power generation capacity stood at 443.6 gigawatts (GW). Of this, renewable sources accounted for 178.8 GW, comprising 89.8 GW of solar, 46.4 GW of wind, 11.3 GW of biomass, and 5.1 GW of small hydro capacity. Large hydropower projects contributed another 47.5 GW, while nuclear and thermal sources accounted for 8.2 GW and 208.9 GW respectively.
In the first quarter of 2025, solar power generation alone rose to 42 BU, reflecting a 32.7% year-on-year increase. This was driven by the addition of 6.7 GW of new solar capacity. Rajasthan led solar output with 13.1 BU, followed by Gujarat, Karnataka, Tamil Nadu, and Maharashtra.
From a regional perspective, the northern region generated the highest share of solar power at 15.4 BU, representing 36.7% of the national total. The southern and western regions followed closely with 13.9 BU and 12.1 BU respectively, while the eastern and northeastern zones contributed smaller shares of 1% and 0.2%.
India’s cumulative solar capacity climbed to 107.95 GW by April 2025, marking a 6.8% quarter-on-quarter and 27.3% year-on-year growth. Solar energy now accounts for 22% of the country’s total power capacity and 47.6% of its renewable energy mix, underlining its critical role in India’s clean energy transition.
