India’s renewable energy sector reached a remarkable milestone in the first half of 2025, driven by record outputs from solar and wind power. According to a report by the global energy think tank Ember, solar power production surged by 17 terawatt-hours (TWh), representing a 25% increase compared to the same period in 2024. This growth raised solar’s contribution to the nation’s total electricity generation from 7.4% to 9.2%. Meanwhile, wind energy output rose by 11 TWh, a 29% increase, bringing its share to 5.1% of the total power mix.
Other clean energy sources also posted gains. Nuclear generation increased by 14%, while hydropower bounced back with a 17% rise after a previous year’s decline. The expansion of renewable energy capacity significantly reduced reliance on fossil fuels: coal-based electricity fell by 22 TWh (3.1%), and gas-based generation dropped by 34%. These shifts collectively cut India’s carbon dioxide emissions by approximately 24 million tonnes relative to H1 2024.
Electricity demand in H1 2025 saw only a modest increase of 1.3%, the slowest growth since the COVID-19 pandemic. Analysts attribute this to milder weather conditions, lower industrial output, and reduced cooling requirements, as air conditioning accounts for nearly one-fifth of India’s total electricity use. Despite the slower demand growth, renewable sources nearly satisfied all new electricity needs, highlighting their growing role in the country’s energy transition.
Looking ahead, electricity demand is expected to rise in the second half of 2025, potentially leading to a slight uptick in coal-based generation. Nevertheless, the sustained growth of solar, wind, nuclear, and hydropower is projected to remain the primary driver in India’s shift toward a greener and more sustainable energy mix. This trend underscores the country’s commitment to reducing emissions while expanding clean energy infrastructure, setting the stage for continued progress in its renewable energy ambitions.
