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Fourth Power

Energy Infrastructure
Fourth Power is a provider of utility-scale energy storage solutions, specializing in flexible-duration thermal energy storage systems. The company utilizes a high-temperature system that converts electricity into heat using liquid metal and stores it in carbon blocks, which is then converted back to electricity through thermophotovoltaic cells. This innovative approach allows for scalable and cost-effective energy storage, offering utilities the ability to adapt to evolving grid conditions with storage costs significantly lower than traditional lithium-ion batteries. Fourth Power's modular design supports storage durations from 5 to over 100 hours, addressing both short and long-term energy needs.

Leadership & Board

Currently, no data available

Latest Estimated Valuation

Estimated Valuation―
Estimated Valuation―
Total Amount Raised$20M
Total Amount Raised$20M
Total Funding Rounds1
Total Funding Rounds1
Latest Funding Amount$20M
Latest Funding Amount$20M
Latest Funding RoundSeries A
Latest Funding RoundSeries A
Post-Money Valuation―
Post-Money Valuation―

Funding Round

Funding Date
Funding Round
Amount Raised
Post-Money Valuation
Sep 16, 2025
Series A
$20.00M
―

Investors

Investor Name
Funding Round
DCVC
Series A
Breakthrough Energy Ventures
Series A
Munich Re Ventures
Series A

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