India’s Top 10 Solar Energy Companies– BTI Rankings (2020)


4PEL Staff

April 2021


INDIA’s TOP 10 SOLAR ENERGY COMPANIES– BTI RANKINGS (2020)



India added 1,352 MW of rooftop solar capacity in 2020, a year plagued by the pandemic. Fourth Partner Energy ranked India’s Top Solar Energy company, Maharashtra led the States in terms of new capacity addition, while the Manufacturing sector adopted more rooftop solar than its peer segments.

BRIDGE TO INDIA’s SOLAR ROOFTOP MAP – DECEMBER 2020


How did India’s solar energy sector perform in the year of the global pandemic? Did Indian businesses in 2020 embrace or hesitate to adopt clean energy solutions? Which financing model between CAPEX and OPEX work better for RE Developers? These are the key highlights answered every year by the sector’s leading research agency Bridge to India. In its India Solar Rooftop Map – December 2020, BTI analyses capacity addition across States and consumer segments, market share of leading players and other key industry trends.

India has a cumulative installed rooftop solar capacity of 6,792 MW as on December2020. The Commercial and Industrial sectors have contributed maximum to this growth at nearly 5 GW, while residential has contributed just a little over 1 GW. Though the OPEX model has gained popularity in recent years, CAPEX has still dominated the market historically at nearly 5 GW of total installed capacity.

In 2020, COVID-19 most definitely left a mark on the sector with rooftop capacity addition down to 1,352 MW in the year – down by 13.5% compared to the previous year. Nearly 50% of this operational capacity was added by the C&I sector. It was however, a good year for the residential rooftop solar segment which grew from 185 MW new capacity in 2019 to nearly double this at 365 MW new capacity in 2020.

Top 10 Rooftop Solar Energy Developers


Rooftop Project Developers (2020) Market Share (% of 364 MW) Ranking
FOURTH PARTNER ENERGY 19.09% 1
CLEANTECH SOLAR 14.02% 2
AMPLUS SOLAR 10.21% 3
RENEW 9.52% 4
CLEANMAX 7.06% 5
AMP ENERGY 5.34% 6
TATA POWER 5.09% 7
AZURE 2.20% 8
ORB ENERGY 2.07% 9
HERO FUTURE ENERGIES 1.97% 10

India’s Best Solar Energy Companies


EPC Contractors (2020) Market Share (% of 1,352 MW) Ranking
TATA POWER 7.82% 1
FOURTH PARTNER ENERGY 7.42% 2
MAHINDRA SUSTEN 3.39% 3
ORB ENERGY 2.16% 4
PROZEAL 1.72% 5
SUNSURE 1.52% 6
SOLAR SQUARE 1.44% 7
KALPA 1.39% 8
HAVELLS 1.21% 9
VIKRAM SOLAR 1.19% 10

(Note: Rooftop Project Developers is a category that captures only the OPEX model of capacity addition. This accounted for 364 MW of new installations in 2020. The EPC Contractors list is a Superset that comprises of new capacities added across OPEX, CAPEX and Residential models of rooftop solar in 2020; this stood at 1,352 MW. Fourth Partner Energy operates purely in the realm of Commercial and Industrial solar – we do not yet have a footprint in the residential market. Tata Power that has secured 7.82% market share in the EPC category operates extensively in the residential arena; this has to be taken into account while analyzing overall C&I Rooftop Solar)

Top 5 States For Rooftop Solar In 2020


State Capacity Added (MW)
MAHARASHTRA 147
KARNATAKA 81
RAJASTHAN 74
TAMIL NADU 74
GUJARAT 67

Top 5 Industry Sectors For Rooftop Solar In 2020


  • MANUFACTURING
  • INFRASTRUCTURE & REAL ESTATE
  • AUTOMOTIVE
  • ENERGY & POWER
  • TEXTILES
**The data has been reported in line with BTI India Solar Rooftop Map | December 2020