At CES 2026, Commonwealth Fusion Systems announced it has installed the first 24-ton magnet for its Sparc fusion reactor, with all 18 magnets to be installed by summer 2025. The reactor aims for operation next year, using powerful magnetic fields to contain plasma and potentially produce net energy gain. The company is also partnering with Nvidia and Siemens to create a digital twin of the reactor to accelerate development and troubleshooting. CFS aims to deliver fusion power to the grid in the early 2030s.
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