Thea Energy Receives $20 Million Federal Grant to Develop Fusion Reactor Magnets
Thea Energy has received a $20 million grant from the Department of Energy’s ARPA-E program to support the manufacturing of its high-temperature superconducting (HTS) magnets for fusion reactors. These magnets are essential components in magnetic confinement fusion, where they help contain and compress plasma to enable nuclear fusion reactions. The company is developing a stellarator-based reactor design that uses fewer magnet variants than traditional models, aiming to reduce manufacturing costs while maintaining performance. Thea’s approach includes 12 large magnets made from four templates and over 300 identical smaller magnets controlled by software for fine-tuning plasma behavior. This strategy could improve construction tolerances and lower overall expenses. The grant adds to the company's $100 million in funding raised earlier this year, making it one of the most well-funded fusion startups. Thea plans to build a commercial-scale fusion power plant by the mid-2040s.
Topics: Climate fusion power nuclear fusion