Commonwealth Fusion Systems receives $85M U.S. grant for fusion power chip development

CHIPS Act award to advance silicon carbide electronics, AI hardware and radiation-hardened components for commercial reactors

By LineZotpaper

Published23 October 2026

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Commonwealth Fusion Systems (CFS) has been awarded $85 million from the U.S. Department of Commerce under the CHIPS Act to develop advanced semiconductors and power electronics tailored for the fusion energy industry. The grant, announced Thursday, also gives the government a stake in the startup, which expects to turn on its Sparc demonstration reactor next year.

Commonwealth Fusion Systems (CFS) announced on Thursday that it will receive $85 million from the Biden administration to develop advanced chips and power electronics for fusion reactors. The funding comes from the CHIPS and Science Act, a 2022 law intended to boost domestic semiconductor manufacturing and research.

CFS, a Massachusetts-based startup spun out of MIT, is racing to build the first commercial fusion power plant. The company plans to switch on its Sparc reactor sometime next year, a key milestone before scaling to dozens of commercial units.

According to the company, the award will support five initiatives. The first focuses on advancing silicon carbide power electronics, semiconductors already used in LEDs, EVs and data centers that can manage the high voltages required to drive superconducting magnets in a fusion machine. CFS will also develop next-generation radio-frequency power generators to heat fusion fuel, as well as faster control electronics hardened against radiation, which could extend component lifetimes in a power plant and cut operating costs. Finally, part of the grant will go toward adapting AI hardware such as GPUs and TPUs for use in fusion power plant control systems.

“Ultimately, that means a more capable, economical power plant and a stronger U.S. supply chain to build it,” Brandon Sorbom, co-founder and chief science officer, said in a blog post. “The funding would help improve the U.S. chip and power electronics industries at the same time it accelerates fusion energy’s progress toward the electrical grid.”

Under the terms of the CHIPS Act award, the government will receive a financial stake in CFS. The company said the funds will bolster both its own R&D and broader U.S. manufacturing capacity for the specialized semiconductors fusion plants will require.

Analysis

Why This Matters

The CHIPS Act funding ties fusion power development directly to semiconductor supply chain resilience, linking two national priorities: energy and chip manufacturing.
If successful, the initiatives could reduce costs and extend the lifespan of electronics in fusion plants, making commercial fusion more economically viable.
The Sparc reactor startup next year will be a critical proof point; this award supports the industrial ecosystem needed after that demonstration.

Background

Commonwealth Fusion Systems was founded in 2018 to commercialize high-temperature superconducting magnet technology developed at MIT. The company is one of several private fusion startups vying to deliver net-energy-producing reactors. The CHIPS Act, signed in 2022, allocated $52 billion to boost U.S. semiconductor production and research. The Department of Commerce administers a portion of those funds through grants to private companies. This award to CFS is an example of the government using chip policy to accelerate a specific energy technology.

Key Perspectives

Commonwealth Fusion Systems: The startup views the grant as a way to simultaneously advance its fusion power plant technology and strengthen the U.S. semiconductor industry. Its chief science officer emphasised the dual benefit to chip manufacturing and fusion progress. No opposing perspectives were presented in the announcement, and no independent observers were quoted in available sources.

What to Watch

The startup date of the Sparc reactor, currently targeted for next year, and whether the chip development timelines align with that milestone.
Specific milestones from the five initiatives, particularly the radiation-hardened electronics and AI hardware adaptation, which could have cross-industry applications.
Any updates on the government’s equity stake in CFS, which may signal broader CHIPS Act terms for future awards.

Sources

Commonwealth Fusion Systems gets $85M to build better fusion-ready semiconductors · TechCrunch

Checked

12 claims in this story checked against 1 source: 6 supported.

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SupportedCFS received an $85 million U.S. grant for fusion-power chip development.TechCrunch: “Commonwealth Fusion Systems (CFS) announced on Thursday that it would receive $85 million from the U.S. government to develop advanced chips for the fusion power industry.”
Partly supportedThe award will advance silicon carbide electronics, AI hardware and radiation-hardened components for commercial reactors.TechCrunch: “CFS will also use the award to develop next-generation radio-frequency power generators, which the company uses to heat fusion fuel, and advanced electronics that will enable faster control of the reactor and be hardened against radiation.”
SupportedThe $85 million award is from the Department of Commerce under the CHIPS Act and is for chips and power electronics for fusion.TechCrunch: “The new CHIPS Act award from the Department of Commerce, which also grants the government a stake in CFS, will help boost R&D and manufacturing capacity for semiconductors in the U.S., the company said.”
Not in the sourcesCFS will receive the funding from the Biden administration.TechCrunch: “Commonwealth Fusion Systems (CFS) announced on Thursday that it would receive $85 million from the U.S. government”
SupportedThe CHIPS Act award gives the government a financial stake in CFS.TechCrunch: “The new CHIPS Act award from the Department of Commerce, which also grants the government a stake in CFS”
SupportedCFS expects to turn on its Sparc reactor sometime next year.TechCrunch: “with CFS aiming to turn on its Sparc reactor sometime next year.”
Not in the sourcesThe CHIPS and Science Act is a 2022 law intended to boost domestic semiconductor manufacturing and research.
Not in the sourcesCFS is a Massachusetts-based startup spun out of MIT.
Not in the sourcesCFS is racing to build the first commercial fusion power plant.TechCrunch: “Fusion power startups have been racing to complete their first demonstration devices”
Partly supportedCFS plans to adapt GPUs and TPUs for fusion power plant control systems.TechCrunch: “Lastly, CFS plans to use part of the CHIPS award to adapt AI hardware like GPUs and TPUs for power plants.”
SupportedBrandon Sorbom said, “Ultimately, that means a more capable, economical power plant and a stronger U.S. supply chain to build it,” in a blog post.TechCrunch: ““Ultimately, that means a more capable, economical power plant and a stronger U.S. supply chain to build it,” Brandon Sorbom, co-founder and chief science officer at CFS, wrote in a blog post .”
SupportedSorbom said, “The funding would help improve the U.S. chip and power electronics industries at the same time it accelerates fusion energy’s progress toward the electrical grid.”TechCrunch: ““The funding would help improve the U.S. chip and power electronics industries at the same time it accelerates fusion energy’s progress toward the electrical grid,” Sorbom said.”