Google Joins OpenSolar's $20M Equity Financing Round

Australia-based solar software platform OpenSolar has secured $20 million in equity financing, including from Google, to accelerate its artificial intelligence (AI)-driven technology solutions and global expansion.  

Among other investors participating in this round are Titanium Ventures and 2150 Sustainability Fund. 

A B2B platform, OpenSolar provides solar installers with free-to-use design, sales, and project management software. It earns revenues through partnerships with hardware and finance providers. The platform leverages Google’s Solar API data to help installers design highly accurate solar energy systems for homes and businesses. 

Recently, the company launched OpenSolar 3.0, a software upgrade that it says lets homeowners track and manage all their energy use – including solar, electricity, gas, and transportation – in one place to design smarter, whole-home energy solutions, explains OpenSolar. In July 2025, it exceeded $10 billion in solar sales and installations, growing at 36% annually.  

“The ability for any contractor to access world class software and imagery for free, is supporting the rapid transition to low-cost clean energy,” said OpenSolar Co-Founder and CEO Andrew Birch. 

He adds, “OpenSolar technology has facilitated 6,000,000 solar system designs resulting in $10bn worth of solar sales, since inception. With the next generation of AI tools, we can take solar growth to the next level, reduce the cost of delivery and help take solar to 50% of energy globally by 2035.”