India added a solar capacity of 26.6 GW in the first nine months (9M) of the calendar year 2025, an increase of 53.7% year-over-year from 17.3 GW, according to the newly released Q3 2025 India Solar Market Update Report by Mercom India Research. Large-scale solar accounted for 81.5% of the capacity commissioned in 9M 2025, while rooftop solar contributed 18.5%. Within large-scale additions, solar open access projects accounted for 28.3% of the total during the period. “Solar installations in the first nine months of 2025 were the highest India has ever recorded, surpassing all of 2024. The industry made solid progress this quarter, but supply constraints, grid congestion, and curtailment continued to hinder execution.