What is eSolar?
Founded in 2007 and headquartered in Burbank, California, eSolar specializes in Concentrating Solar Power (CSP) technology. The company distinguishes itself through its proprietary solar collector system (SCS), which integrates pre-fabricated, modular hardware with sophisticated computer software engineering. This approach significantly reduces capital expenditure while maintaining high efficiency. Beyond traditional power generation, eSolar's technology is uniquely suited for industrial applications, including water desalination, enhanced oil recovery, and industrial process heat. By marrying low-impact design with scalable architecture, the firm addresses the global demand for reliable, sustainable energy infrastructure.
The company's growth trajectory has been supported by a diverse syndicate of investors, ranging from technology giants to specialized private equity firms. This financial foundation has enabled eSolar to refine its plant-level solutions and expand its operational footprint, ensuring that its modular power tower systems remain at the forefront of the clean energy transition.
How much funding has eSolar raised?
eSolar has raised a total of $229.8M across 6 funding rounds:
Unspecified
$10M
Unspecified
$130M
Private Equity
$35M
Private Equity
$20M
Private Equity
$12.8M
Private Equity
$22M
Unspecified (2008): $10M with participation from Google
Unspecified (2008): $130M led by Idealab, Oak Investment Partners, and Google
Private Equity (2009): $35M supported by Idealab and Oak Investment Partners
Private Equity (2011): $20M featuring Idealab, Oak Investment Partners, and GE Energy
Private Equity (2013): $12.8M backed by Oak Investment Partners
Private Equity (2013): $22M with participation from Oak Investment Partners
Key Investors in eSolar
Oak Investment Partners
Oak Investment Partners is a multi-stage venture capital firm that provides strategic investment advice and market research to support the growth of innovative technology companies.
Idealab
Idealab is a technology incubator and investment firm that focuses on creating and scaling companies with high-impact, research-driven solutions.
Google is a global technology leader that invests in transformative infrastructure and sustainable energy projects to support its long-term operational goals.
What's next for eSolar?
Looking ahead, eSolar is poised to leverage its established technological framework to penetrate broader industrial markets. The strategic capital secured will likely be directed toward scaling its modular deployment capabilities and enhancing the software-driven efficiency of its solar receivers. As global industries face increasing pressure to decarbonize, eSolar's ability to provide dispatchable thermal energy offers a distinct competitive advantage. The company remains focused on optimizing its supply chain and forging partnerships that facilitate the integration of its CSP solutions into existing industrial processes, thereby solidifying its role as a cornerstone of the modern renewable energy landscape.
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