Commonwealth Fusion Systems Secures $85M for Fusion-Grade Chips

The capital, provided under the CHIPS Act, grants the federal government an equity stake in the company. According to co-founder Brandon Sorbom, the funding targets five core initiatives designed to increase the longevity and economic viability of fusion reactors. Central to the effort is the advancement of silicon carbide power electronics, which are essential for managing the intense electrical loads required to drive superconducting magnets and confine plasma.

Beyond basic power management, the company intends to refine radio-frequency generators used to heat fusion fuel and develop radiation-hardened electronics to survive the harsh internal environment of a reactor. By adapting existing AI hardware, such as GPUs and TPUs, to handle the complex control systems of a power plant, Commonwealth Fusion Systems seeks to improve operational efficiency. These developments are intended to reduce maintenance costs and accelerate the transition of fusion technology to the electrical grid, moving beyond the proof-of-concept phase represented by the upcoming Sparc reactor.