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Posts by Commonwealth Fusion Systems

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Powering U.S. Innovation: The Need for Federal Investment in Fusion Infrastructure | Perspectives on Innovation | CSIS The administration clearly recognizes fusion's importance. But this prioritization must be matched by significant federal investment or else the United States risks surrendering a technology it pionee...

3/3 “The Trump administration clearly recognizes these stakes with the Department of Energy’s new Genesis Mission and establishment of a dedicated Office of Fusion. But this prioritization must be matched by significant federal investment...”

Read more from the CSIS below:

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2/3 “The United States retains a critical advantage in scientific leadership and private investment, but that lead is narrowing as China invests aggressively in deployment infrastructure and ecosystem development,” CSIS says.

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"Unlocking fusion energy is not simply a technological milestone, but it is the foundation of energy security, economic competitiveness, and geopolitical power in the twenty-first century,” concludes the @csis.org. 1/3

#FusionEnergy

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Virtual Tour of the CFS Commercial Fusion Campus (April 2026)
Virtual Tour of the CFS Commercial Fusion Campus (April 2026) YouTube video by Commonwealth Fusion Systems

4/4 "We’re now operating the plant, now putting the actual tokamak together," says Creely. "We’re really excited for what comes next both here at SPARC and down in Virginia for the first ARC power plant.”

Watch to learn more and see SPARC for yourself.

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3/4 As SPARC nears full assembly, much of that progress is visible inside tokamak hall. That room houses the SPARC tokamak where we’ll be making plasmas and producing fusion power.

#FusionEnergy

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2/4 In this tour, Alex Creely, Chief Engineer of ARC Conceptual Design, SPARC expert, and your tour guide shows the tremendous progress we've made over the past 9 months since our last virtual tour.

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It’s time for a new inside look at the #SPARC facility, where we're about 75% done building our machine to demonstrate fusion energy’s commercial viability. 1/4

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4/4 And the fusion power plants we'll build will eventually power the very same AI systems that have supported their construction.

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3/4 The AI software that we use at CFS, powered in part by technology available through our partnerships with NVIDIA, Google and Siemens, holds the potential to accelerate how we build, test, and operate the SPARC tokamak and its various support systems...

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2/4 On stage at CERAWeek 2026 discussing how to scale new technologies to meet AI demand, CFS CEO and Co-founder Bob Mumgaard sat alongside two of our close working partners at Google and NVIDIA, to discuss how #AI and fusion energy benefit each other.

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How fusion simulations went from months to milliseconds to run #FusionEnergy #AI
How fusion simulations went from months to milliseconds to run #FusionEnergy #AI YouTube video by Commonwealth Fusion Systems

"[This is] the first time [we've had] energy technology that's gone all the way from Newton's laws on some of the biggest scientific compute all the way to a real-time control system and...digital representation of a plant." 1/4

#FusionEnergy

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4/4 As CFS CEO and Co-founder Bob Mumgaard puts it:

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3/4 We believe in a robust fusion ecosystem. And CFS and Realta share the common goal of achieving commercial fusion, faster. This partnership helps us, helps Realta, helps fusion, and ultimately helps humanity.

#ClimateTech #CleanEnergy

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2/4 This collaboration applies CFS' industry-leading HTS magnet technology, developed initially for our SPARC fusion machine, to a different technology: Realta's magnetic mirror fusion machine.

#Manufacturing

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Humanity will ultimately benefit from a commercial fusion market in which companies tackle different approaches to fusion technology in parallel. That's why this partnership between CFS and Realta Fusion matters. 🧵 1/4

#FusionEnergy

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Commonwealth Fusion Systems Delivers Superconducting Magnets to University of Wisconsin's WHAM Project The world's largest and leading commercial fusion energy company

For more details on the integrated magnet systems CFS built for WHAM, check here: cfs.energy/news-and-med...

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CFS–Realta magnet partnership speeds fusion energy progress | The Tokamak Times Commonwealth Fusion Systems will build high-temperature superconducting (HTS) magnets for Realta Fusion, a strategic partnership that will benefit both companies’ efforts to bring this new form of cle...

4/4 CFS believes in a robust fusion ecosystem. This partnership helps CFS, helps Realta, helps fusion, and ultimately helps humanity.

For more details on this magnet manufacturing deal, check out our blog post below.

#FusionEnergy#Manufacturing

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3/4 CFS made the magnets for UW-Madison's WHAM experiment, an effort that yielded record magnetic fields for the technology, and the Realta partnership extends that work.

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2/4 Realta, a spinoff from the University of Wisconsin–Madison, is focusing on a type of fusion technology called a magnetic mirror, a cousin to the tokamaks that CFS is building for our own fusion energy machines.

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The WHAM project at UW Madison with magnets supplied by CFS

The WHAM project at UW Madison with magnets supplied by CFS

CFS announced today we’ll design and build high-temperature superconducting (HTS) magnets for Realta Fusion in a long-term strategic partnership that’ll benefit both companies’ efforts to bring this new form of clean, affordable energy to the electricity grid. 1/4

#PowerMoves

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5/5 SPARC has many, many pieces. It'll only work if it’s assembled in a very particular order, and some of those moves are irreversible. You can see why they call this tough tech.

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4/5 Each component of SPARC is an intricate construction, but figuring out how to piece this 3D jigsaw puzzle together brings another level of complexity.

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Both halves of the SPARC vacuum vessel

Both halves of the SPARC vacuum vessel

3/5 That’s because we need to do a heap of prep work for each one, on top of the fact we'll need to thread each through a set of nine D-shaped toroidal field (TF) magnets before we can weld the two assemblies together.

#Energy

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2/5 But it'll be some time before we bring these two halves together to form most of the inner portion of our fusion demonstration machine.

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The second half of the vacuum vessel of CFS' SPARC tokamak

The second half of the vacuum vessel of CFS' SPARC tokamak

With both halves of the SPARC vacuum vessel now inside Tokamak Hall, the donut shape of our tokamak is starting to make more visual sense. 1/5

#FusionEnergy

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6/6 Specifically, AI can turn traditional computer simulations into enormously faster "surrogate" models, helping us to plan how to use SPARC better and learn from it as fast as possible. And that could enable us to work at top speed on our mission to commercialize fusion energy.

#CleanTech

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5/6 At the same time, recent improvements in #AI — supplemented with tools like NVIDIA's digital twin technology — hold the potential to dramatically accelerate simulated tests of our SPARC fusion machine.

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4/6 The expected increase in electricity demand over the coming decades affirms the need for a new technology like fusion energy to provide clean, firm, 24/7 power.

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Bob Mumgaard speaking at CERAWeek 2026

Bob Mumgaard speaking at CERAWeek 2026

3/6 As part of CERAWeek, CFS CEO and Co-founder Bob Mumgaard sat down with Lucia Tian and Marc Spieler, two of our close working partners at Google and NVIDIA, to discuss how we're thinking about scaling fusion energy and how our technology and AI benefit from each others' advancements.

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2/6 "...Working with Google DeepMind, they've brought in the models for AI that have taken a very sparse data set and [made] it into a control system that doesn't take months to run, but milliseconds to run."

#FusionEnergy

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