Commonwealth Fusion Systems receives $85 million federal chip award

Commonwealth Fusion Systems will receive $85 million from the U.S. government to develop semiconductors specifically designed for fusion power plants. The company announced the funding on Thursday, noting that the award comes with a government stake in its equity.

The money is part of the CHIPS Act and was issued by the Department of Commerce. CFS stated that the capital will strengthen research and development efforts while expanding domestic manufacturing capacity for these specialized chips.

The funding targets five distinct technical areas. The primary focus is silicon carbide power electronics, which manage high voltages in systems ranging from electric vehicles to data centers. In fusion machines, these components drive the superconducting magnets that confine plasma within the reactor.

CFS also plans to use the award to develop next-generation radio-frequency power generators for heating fusion fuel. A separate effort will produce advanced electronics that allow for faster reactor control and withstand higher levels of radiation. The company said these radiation-hardened components could extend the lifespan of parts inside a power plant, thereby reducing long-term operating costs.

The final initiative involves adapting AI hardware, including GPUs and TPUs, for use within fusion facilities. Brandon Sorbom, co-founder and chief science officer at CFS, wrote in a blog post that the goal is a more capable and economical power plant supported by a stronger U.S. supply chain.

The award arrives as CFS prepares to activate its Sparc reactor sometime next year. While a single reactor serves as a proof of concept, building dozens of commercial plants requires durable power electronics and a reliable supply chain. Sorbom said the funding will improve the U.S. chip industry while accelerating the progress of fusion energy toward the electrical grid.