Mumbai-based rooftop solar startup SolarSquare Energy has raised $50–55 million in a funding round led by B Capital, valuing the company at approximately $450–500 million. The investment marks a significant milestone for the clean energy startup. 

The funding comes just 18 months after SolarSquare’s $40 million round led by Lightspeed Venture Partners. The company has achieved strong growth momentum, reaching an annualized revenue run rate of ₹800–1,000 crore and reporting ₹355 crore in FY25 operating revenue, more than double the previous year.

SolarSquare operates in a market receiving a major boost from the Government of India’s PM Surya Ghar Muft Bijli Yojana, which aims to install rooftop solar systems in one crore households by March 2027. As of December 2025, over 25 lakh households had already adopted rooftop solar under the scheme.

CXOTechBOT views this funding as another strong signal of the growing opportunity within India’s clean energy and rooftop solar ecosystem.