Thea Energy
Updated: December 15, 2025
CEO - Brian Berzin
Country: USA | Funding: $20M (+)
Founded: 2022
Website: https://www.thea.energy/
Thea Energy is developing pixel-inspired Helios fusion reactor that will offer a lower cost than competitors. It's a stellarator - a special type of reactor that uses magnets to shape plasma fuel into the desired shape. These magnets are small, identical superconducting magnets, allowing for mass production. The startup will use software to individually control each magnet to generate magnetic fields that can replicate the stellarator's unstable shape. This approach allows rapid optimization of the magnet design. Helios is projected to generate 390 megawatts of electricity at a cost of under $150 per megawatt-hour. Production is scheduled to start around 2030.
Founded: 2022
Website: https://www.thea.energy/
Thea Energy is developing pixel-inspired Helios fusion reactor that will offer a lower cost than competitors. It's a stellarator - a special type of reactor that uses magnets to shape plasma fuel into the desired shape. These magnets are small, identical superconducting magnets, allowing for mass production. The startup will use software to individually control each magnet to generate magnetic fields that can replicate the stellarator's unstable shape. This approach allows rapid optimization of the magnet design. Helios is projected to generate 390 megawatts of electricity at a cost of under $150 per megawatt-hour. Production is scheduled to start around 2030.
