Solar Energy Companies in India: an overview
India's installed solar capacity reached about 171 GW by 30 September 2026, according to the Ministry of New and Renewable Energy. Ground-mounted plants account for roughly 126 GW of that, grid-connected rooftop systems for about 33 GW, and the rest comes from the solar portion of hybrid projects and off-grid installations. Including large hydro, the country's total renewable capacity stood at about 299 GW on the same date.
Utility-scale capacity is built mainly by independent power producers that win long-term supply contracts. Adani Green Energy, incorporated in 2015, holds the Adani Group's renewable generation assets, while NTPC Green Energy was set up in 2022 as the renewable arm of the state-owned power producer. Solar Energy Corporation of India, a Navratna public sector enterprise under MNRE, runs many of the national tenders that select developers and acts as the intermediary buyer of the power.
Module and cell manufacturing has expanded quickly alongside these projects. Waaree Energies reports 12 GW of module capacity across five Indian factories, Adani Solar runs 4 GW of cell and module lines and 2 GW of ingot and wafer capacity in Mundra, and Rayzon Solar says it reached 11.3 GW of TOPCon module capacity in the last quarter of FY2025-26. Suppliers of inputs such as solar glass and EPC contractors complete the value chain.