Pirates.BZ Tech Startup NewsFourth Power, an MIT spinout founded by Professor Asegun Henry, is developing thermal batteries that store electricity as heat at temperatures up to 2,400C using carbon bricks and molten tin. The company aims to provide 10-100 hours of grid-scale storage at a lower cost than lithium-ion batteries. A 1MWh demonstration unit is planned for later this year. https://news.mit.edu/2026/turning-extreme-heat-large-scale-energy-storage-0318 #Tech #Startup #News #DeepTech #FourthPower
Turning extreme heat into large-scale energy storage
Fourth Power, founded by MIT Professor Asegun Henry, is developing large-scale thermal batteries that store excess electricity from utility grids and power producers by heating graphite blocks to extreme temperatures.