India-based rooftop solar startup SolarSquare is reportedly in advanced discussions to raise fresh funding as investor interest in India’s residential solar market continues to grow rapidly.
According to a report by TechCrunch, venture capital firms B Capital and Lightspeed Venture Partners are expected to co-lead SolarSquare’s upcoming Series C funding round.
The investment round could raise between $55 million and $60 million and potentially value the Mumbai-based startup between $450 million and $500 million, according to sources familiar with the matter.
SolarSquare’s Valuation Could More Than Double
If finalized, the new funding round would mark a significant increase in SolarSquare’s valuation within less than two years.
Lightspeed Venture Partners had previously led SolarSquare’s $40 million Series B round in December 2024 at an estimated post-money valuation of around $200 million.
Reports suggest Lightspeed may participate in the latest round through its growth fund, which has backed major Indian startups including:
- Razorpay
- Zepto
Existing investor Elevation Capital is also expected to participate in the upcoming funding round.
The transaction is reportedly in advanced stages, although the terms could still change before final closure.
According to startup intelligence platform Tracxn, SolarSquare has raised approximately $61.1 million in equity funding to date.
India’s Rooftop Solar Market Expanding Rapidly
India has been aggressively expanding its renewable energy capacity as part of its clean energy transition strategy.
The country has set a target of achieving:
- 500 GW renewable energy capacity by 2030
Solar energy is expected to contribute more than half of that total.
India also emerged as the world’s third-largest solar power producer in 2025, behind only China and the United States.
The country’s installed solar power capacity has reportedly grown from:
- Around 3 GW in 2014
to - More than 150 GW in 2026
The growth has been supported by:
- Government subsidies
- Rooftop solar incentives
- Renewable energy policies
- Residential solar adoption programs
SolarSquare Focuses on Residential Rooftop Solar
Founded in 2015, SolarSquare operates as a full-stack rooftop solar platform serving:
- Individual homes
- Housing societies
- Residential communities
- Enterprises
The company provides:
- Solar system design
- Installation services
- Maintenance support
- Energy management solutions
SolarSquare currently operates across:
- 29 cities
- 9 Indian states
According to company information, the startup has installed more than:
- 150 MW of solar capacity
Sources familiar with the business said SolarSquare has powered:
- Nearly 50,000 homes
- Around 400 housing societies
The startup has also delivered rooftop solar systems for enterprises including:
- Swiggy
- Zepto
- iD Fresh Food
Residential Solar Segment Driving Growth
Industry observers say SolarSquare has increasingly shifted its focus toward residential and housing society solar installations.
The company has reportedly reduced exposure to lower-margin industrial rooftop solar projects in recent years.
Residential solar demand in India has been rising due to:
- Increasing electricity prices
- Government subsidy schemes
- Sustainability awareness
- Energy independence goals
According to sources, SolarSquare has crossed:
- ₹10 billion ($104 million) annualized revenue run rate
The company also aims to expand its residential solar portfolio to:
- 200 MW during the current year
India’s Solar Ecosystem Attracting Investors
India’s renewable energy sector continues to attract strong interest from global investors as the country accelerates:
- Energy transition efforts
- Rooftop solar adoption
- Domestic clean energy manufacturing
- Sustainability initiatives
Analysts believe residential solar could become one of the fastest-growing segments within India’s renewable energy market over the next decade.
The sector is also expected to benefit from government initiatives promoting:
- Decentralized clean energy
- Net-zero targets
- Consumer-focused renewable energy adoption
Conclusion
SolarSquare’s reported fundraising discussions highlight the growing investor confidence in India’s rapidly expanding rooftop solar ecosystem.
As demand for residential clean energy solutions continues to increase, rooftop solar startups are expected to play a major role in supporting India’s long-term renewable energy and sustainability goals.
With supportive policies, rising consumer adoption, and increasing venture capital interest, India’s rooftop solar market could witness significant growth in the coming years.
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