Tata Power Solar, Roofsol Energy, Mahindra Solarize, Gentari (formerly Amplus Solar), and Kalpa Power emerged as the top rooftop solar installers in India in 2024, according to Mercom India’s India Solar Market Leaderboard 2025. Together, these five companies accounted for nearly 30% of the total rooftop solar market.

India added 3.2 GW of rooftop solar capacity in 2024, marking an 86% increase from 1.7 GW in 2023, as per Mercom India’s 2024 Q4 & Annual Mercom India Rooftop Solar Market Report. Much of the growth was driven by the residential segment, supported by the PM – Surya Ghar program. However, the momentum was partially offset in the last quarter due to delays caused by mandatory domestic content requirement (DCR) module policies and technical issues in the DCR verification portal.

As of December 2024, India’s cumulative rooftop solar capacity stood at 13.7 GW.

Tata Power Solar retained its leadership position, contributing 19.4% of rooftop solar installations in 2024. The company posted a strong year-over-year (YoY) growth of 37.9%. Roofsol Energy claimed second place with a 4% market share and a significant 82.3% YoY increase in capacity additions. It primarily serves industrial clients in the auto components, textiles, pharmaceuticals, and food and beverage sectors.

Mahindra Solarize secured third place with a 2.4% market share, driven by robust growth in commercial and industrial rooftop deployments. Amplus Solar, which held the second position last year, dropped to fourth following a 51.4% YoY decline in installations. Kalpa Power made its debut in the top five, capturing 1.8% market share with strong project execution across the manufacturing, chemicals, infrastructure, construction, and education sectors.

Mercom’s India Solar Market Leaderboard provides a detailed analysis of market trends, competitor analysis and company performance across the solar supply chain.

For the detailed and comprehensive report, click here.

A complete list of solar rooftop installers and their market shares is available through Mercom’s India Solar Market Share Tracker.