Thea Energy (formerly Princeton Stellarators, Inc.) is a fusion power company spun out of Princeton Plasma Physics Laboratory and Princeton University in 2022. Its stellarator design, Helios, replaces the complex twisted magnet coils used by other stellarator architectures with arrays of mass-manufacturable, computer-controlled planar superconducting magnets, aiming to reduce fusion reactor manufacturing costs. The company plans a commercial-scale fusion power plant in the mid-2030s.
Prelude Ventures (Series A lead); U.S. Innovative Technology Fund (Series B lead)