Fourth Power: Valuation, Funding & Investors

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.