Thea Energy

Thea Energy, Inc. is a fusion energy startup spun out of Princeton University and Princeton Plasma Physics Laboratory in 2022, commercializing a novel planar coil stellarator architecture that replaces complex 3D superconducting magnets with arrays of simpler, mass-manufacturable planar coils controlled by software. The company is developing its Eos neutron source stellarator and Helios fusion power plant, targeting on-the-grid commercial operation in the 2030s for utilities, hyperscalers, and energy offtakers.