Fourth Power vs Eaton Corp
Side-by-side comparison of AI visibility scores, market position, and capabilities
Raised $45M total including $20M Series A (Munich Re Ventures, DCVC, Breakthrough Energy). Integrated demo unit completing 2026. Targets 10x cheaper storage than lithium-ion.
About
Fourth Power is an MIT-originated thermal energy storage company that stores electricity as heat in graphite blocks at 2,400°C — using molten tin as a heat transfer medium and converting stored heat back to electricity via thermophotovoltaics (TPV). The company has raised $45 million including a $20 million Series A from Munich Re Ventures, DCVC, and Breakthrough Energy Ventures, and is completing its full integrated demonstration unit in 2026.
Eaton Corp (ETN) reported $24.9B revenue in FY2024, up 8% YoY. Global leader in power management for data centers, utilities, and industry. ~100,000 employees. HQ: Dublin, Ireland.
About
Eaton Corporation plc is a multinational power management company headquartered in Dublin, Ireland (with operational HQ in Beachwood, Ohio). Founded in 1911, Eaton is one of the world's largest industrial companies specializing in electrical components, systems, and services for commercial, industrial, utility, and data center applications. Eaton reported revenues of $24.9B in FY2024, up 8% year-over-year, with a market capitalization of approximately $130B.
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