What is Fourth Power?
Fourth Power operates at the intersection of advanced materials science and grid-scale energy infrastructure. The company has developed a high-temperature thermal storage system capable of reaching 2400C, which allows for exceptional power density using abundant, domestic materials. This approach provides a cost-effective alternative to conventional battery technologies, targeting a price point of less than $25/kWh. By enabling rapid, dispatchable energy delivery, Fourth Power addresses the inherent intermittency of renewable energy sources, ensuring that the grid remains stable and resilient as it integrates higher percentages of wind and solar power.
How much funding has Fourth Power raised?
Fourth Power has raised a total of $39M across 1 funding round:
Series A
$39M
Series A (2025): $39M with participation from DCVC Management, Breakthrough Energy Ventures, and Black Venture Capital Consortium
Key Investors in Fourth Power
DCVC Management
DCVC is a deep tech venture capital firm that invests in entrepreneurs tackling some of the world's most challenging problems, focusing on leveraging artificial intelligence to unlock potential across sectors like energy and biotechnology.
Breakthrough Energy Ventures
Breakthrough Energy Ventures invests in cutting-edge companies that will lead the world to net-zero emissions, providing patient, risk-tolerant capital to support transformative clean energy innovations.
Black Venture Capital Consortium
The Black Venture Capital Consortium is a nonprofit organization dedicated to increasing diversity in the venture capital and startup ecosystem by empowering top HBCU students through mentorship and professional development.
What's next for Fourth Power?
With the successful closure of this major enterprise-level funding, Fourth Power is expected to focus on scaling its manufacturing capabilities and initiating pilot projects that demonstrate the viability of its TPV-based storage systems in real-world grid environments. The strategic alignment with climate-focused investors suggests a roadmap centered on rapid commercialization and the establishment of a robust supply chain. As the global energy transition intensifies, Fourth Power's ability to provide long-duration, low-cost storage will likely position it as a critical player in the infrastructure required to achieve net-zero emissions targets. Future growth will likely involve expanding partnerships with utility providers and grid operators to integrate these thermal storage solutions into existing energy networks, thereby enhancing overall grid reliability and efficiency.
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