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Commonwealth Fusion Systems, Nvidia Ces 2026: Collaboration, Progress ...

Commonwealth Fusion Systems installed the first 24-ton magnet for its Sparc reactor and partners with Nvidia and Siemens to develop a digital twin for faster fusion development.

  • Yesterday at CES 2026, Commonwealth Fusion Systems said it installed the first magnet in its Devens SPARC demonstration machine and partnered with Nvidia and Siemens to build a digital twin.
  • The 18 magnets will create a doughnut-like field to confine and compress plasma burning at more than 100 million degrees C inside the tokamak design.
  • Each 24-ton magnet generates a 20 tesla magnetic field, will be cooled to-253� C to safely conduct over 30,000 amps, and sits on a 24-foot wide, 75-ton stainless steel cryostat.
  • CFS expects to install all 18 magnets by the end of the summer, with the rest scheduled through the first half of this year and aims for a net-energy milestone in 2027.
  • Using Nvidia Omniverse and Siemens data, Mumgaard said `CFS will be able to compress years of manual experimentation into weeks of virtual optimization using the digital infrastructure developed by Nvidia and Siemens`, backed by nearly $3 billion including 863 million.
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The Business Journals broke the news in United States on Tuesday, January 6, 2026.
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