CFS Secures Federal Funding for Fusion Electronics

Commonwealth Fusion Systems announced on Thursday that it will receive an $85 million award from the U.S. government. The funding comes from the CHIPS Act and is administered by the Department of Commerce. In exchange for the grant, the federal government will hold an equity stake in the company.

The money is designated for five specific engineering initiatives. The primary goal is to create durable power electronics that can withstand the harsh conditions inside fusion reactors. These components are essential for managing the high voltages required to operate superconducting magnets and heat fusion fuel.

One initiative focuses on silicon carbide power electronics. These semiconductors manage high voltages in various industries, including electric vehicles and data centers. In fusion systems, they handle the intense electrical bursts needed to drive the magnets that confine plasma.

The company will also develop next-generation radio-frequency power generators. These devices are used to heat fusion fuel to the necessary temperatures. A third project targets advanced control electronics that are hardened against radiation. The company stated that these radiation-resistant components could extend the lifespan of hardware inside a power plant, thereby lowering long-term operating costs.

The final two initiatives involve adapting artificial intelligence hardware for power plant use. This includes modifying GPUs and TPUs to operate effectively in fusion environments.

The award arrives as CFS prepares to activate its Sparc reactor next year. While a single reactor serves as a proof of concept, the company aims to build dozens of commercial plants in the future. Brandon Sorbom, co-founder and chief science officer at CFS, noted that the funding supports the expansion of U.S. manufacturing capacity.

Sorbom stated that the project aims to create a more capable and economical power plant. He said the funding would improve the U.S. chip and power electronics industries while accelerating the progress of fusion energy toward the electrical grid.