The U.S. government has renewed its engagement with the fusion power industry by awarding Helion and Commonwealth Fusion Systems (CFS) a combined $260 million under the Department of Commerce’s CHIPS and Science Act. Helion secured $175 million, while CFS received $85 million to develop advanced semiconductors critical for their fusion reactors. Unlike traditional grants, these awards require both companies to grant the government nonvoting equity stakes.
This marks a departure from past government funding, which typically provided nondilutive capital without ownership claims. Helion’s equity stake corresponds to roughly 1% based on its recent $15.5 billion valuation, while CFS’s stake size remains undisclosed. Both companies emphasize that this structure aligns their commercial success with taxpayer interests.
The awards come amid growing private investment in fusion, with Helion and CFS having raised $3.2 billion and $4 billion respectively. Despite this, the Fusion Industry Association has called for a $10 billion federal investment to keep pace with international competitors like China, which are heavily funding fusion development.
Previous federal fusion funding was limited and primarily milestone-based through the Department of Energy, distributing less than $50 million in early years. The current awards, although significant, come from the Commerce Department rather than the DOE’s research budget and introduce equity conditions not previously part of fusion funding discussions.
This approach reflects a broader trend in U.S. government investments, where equity stakes accompany funding to allow taxpayers to share in potential commercial gains. Similar arrangements have been seen with companies in critical minerals and semiconductor sectors, including MP Materials and Intel.
Not all fusion startups have accepted equity terms; others like Thea Energy, Avalanche Energy, and Pacific Fusion have received federal support without giving up ownership. However, the new model could influence future funding negotiations and investor considerations, as venture capitalists weigh the impact of government equity on ownership and control.
As fusion startups continue to seek billions in funding to commercialize their technology, the evolving nature of government support introduces new complexities. Whether these equity-linked awards will accelerate fusion development or complicate investment remains to be seen.