What is ERTHOS?
Founded in 2019 and headquartered in Tempe, Arizona, ERTHOS is a technology-driven solar company focused on transforming the utility-scale solar landscape. The company's core innovation, Earth Mount Solar PV, replaces conventional steel racking systems by mounting modules directly onto the ground. This architectural shift significantly reduces construction timelines, land usage, and capital expenditure. To ensure operational efficiency, ERTHOS integrates autonomous cleaning robotics that maintain array performance while providing real-time, module-level DC health diagnostics. This holistic approach to solar plant design positions the company as a leader in driving down the levelized cost of electricity for utility providers worldwide.
How much funding has ERTHOS raised?
ERTHOS has raised a total of $48.9M across 3 funding rounds:
Series A
$7.4M
Series B
$17.5M
Other Financing Round
$24M
Series A (2019): $7.4M, investors not publicly disclosed
Series B (2022): $17.5M led by Capricorn Investment Group
Other Financing Round (2023): $24M supported by Capricorn’s Technology Impact Funds
Key Investors in ERTHOS
Capricorn Investment Group
Capricorn Investment Group is a Palo Alto-based investment firm that manages diversified portfolios for mission-aligned families, foundations, and institutional investors, with a strong focus on sustainable, climate, and impact investments.
Capricorn’s Technology Impact Funds
A specialized investment vehicle focused on backing high-growth technology companies that address critical global environmental and social challenges through sustainable innovation.
Undisclosed Investor
Undisclosed investor participating in the funding round.
What's next for ERTHOS?
With the recent influx of capital, ERTHOS is poised to scale its manufacturing and deployment capabilities to meet the rising demand for sustainable energy infrastructure. The strategic focus will likely center on expanding the footprint of its Earth Mount Solar PV systems across diverse geographic markets, leveraging its competitive advantage in land-use efficiency and rapid installation. Furthermore, the company is expected to continue refining its autonomous maintenance ecosystem, ensuring that its solar plants remain the most cost-effective and reliable assets in the renewable energy portfolio. As the global energy market shifts toward decarbonization, ERTHOS is well-positioned to capture significant market share by providing a scalable, low-cost alternative to traditional solar mounting solutions.
See full ERTHOS company page
