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Commonwealth Fusion Installs First Sparc Magnet, Partners With Nvidia and Siemens on AI Digital Twin

The virtual model aims to compress design cycles by testing thousands of scenarios in software before any hardware changes.

Overview

  • CFS announced at CES a collaboration with Nvidia and Siemens to build a digital twin of its Sparc tokamak using Omniverse/OpenUSD and Siemens’ Xcelerator/NX toolchain.
  • The company said it has installed the first superconducting magnet inside the Sparc cryostat, with a total of 18 planned and the final unit slated for installation by summer.
  • CFS targets initial Sparc operation in 2027 at its Devens, Massachusetts site as it pursues magnetic confinement fusion using high‑temperature superconducting magnets.
  • Executives say AI‑supported physics simulations could compress years of manual experimentation into weeks of virtual optimization.
  • CFS positions Sparc as a step toward its planned Arc commercial plant in the early 2030s and has disclosed an initial power purchase agreement with an oil and gas company.