Exowatt

The Exowatt P3 system captures solar heat through proprietary fresnel lenses, stores it in high-efficiency heat batteries, and converts it to electricity on demand using proprietary heat engines, enabling 24-hour dispatchable solar power.

The company has received backing from Sam Altman and Silicon Valley VCs, won Fast Company's 2025 Next Big Thing in Tech Award, and has launched a business arm to deliver powered land and energy for hyperscale data centers.