Government Stakes Equity in Fusion Firm for $85M Chip Push

The U.S. Department of Commerce issued an $85 million CHIPS Act award to Commonwealth Fusion Systems on Thursday. The agreement includes a government equity stake in the company. CFS will use the funds to develop specialized semiconductors for the fusion power industry and expand U.S. manufacturing capacity.

The grant targets five specific technical initiatives. The first is the advancement of silicon carbide power electronics. These components manage high voltages and are already used in electric vehicles, data centers, and cell phone base stations. In fusion reactors, they handle the intense electrical bursts required to drive superconducting magnets that confine plasma.

CFS will also develop next-generation radio-frequency power generators used to heat fusion fuel. A third effort focuses on electronics that allow faster reactor control and withstand high radiation levels. The company stated that these radiation-hardened components could extend the lifespan of hardware inside fusion plants. This extension would lower long-term operating costs. The final initiative involves adapting artificial intelligence hardware, including GPUs and TPUs, for use in power plant operations.

Brandon Sorbom, co-founder and chief science officer at CFS, detailed the plan in a company blog post. He said the funding would strengthen research and development. It would also build a stronger domestic supply chain for critical hardware.

The award arrives as fusion startups race to complete their first demonstration machines. CFS aims to switch on its Sparc reactor next year. A single reactor serves as a proof of concept. However, companies hoping to build dozens of commercial plants need durable power electronics and a reliable supply chain to support large-scale deployment.

Sorbom noted that the funding will improve the U.S. chip and power electronics industries. It will also accelerate the progress of fusion energy toward the electrical grid. The company said the specialized chips are essential for making future power plants more economical and capable.