Pirates.BZ Tech Startup NewsFourth Power, an MIT-founded startup, is building thermal batteries that store energy as heat. The company uses molten metal to transport heat stored in carbon bricks, converting it to electricity via thermophotovoltaic cells. Targeting data centers and grid storage, the system provides 10-100 hours of electricity at lower costs than lithium-ion. 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.