Commonwealth Fusion Systems
@commonwealthfusionsystems·10.3K subscribers·72 videos
Dept of Energy Validates CFS Magnet, Marked by Visit from Secretary Wright #energy #fusionenergy
Posted
September 30, 2025
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0:40Now PlayingIt’s a great moment to celebrate milestones at CFS — in more ways than one.
Today we announced we’re done manufacturing one of our key magnets and putting it through a rigorous, month-long battery of performance tests — which it passed. That achievement unlocked a payment from @energy’s Milestone Based Fusion Development Program, an important fusion energy industry catalyst, after DOE’s panel of experts validated our results.
Marking the occasion on Monday, Secretary Chris Wright and Massachusetts Gov. Maura Healey visited our headquarters to see how we test our magnets and discuss how we’re working to bring fusion energy to the electricity grid, at scale, as fast as possible.
Here’s the background for this bipartisan visit.
Our high-temperature superconducting magnets are a key breakthrough that’ll let us make fusion machines to be more compact than was previously possible. That includes both SPARC tokamak that we’re building at our headquarters in Devens, Massachusetts, and the ARC power plant we’re planning to put on the grid in Chesterfield County, Virginia.
DOE’s Milestone program provides important independent validation that our magnet technology is up to scratch — in this case a production version of a D-shaped toroidal field (TF) magnet that’s destined to confine and control SPARC’s superhot fusion fuel. We tested the magnet with high current and magnetic fields under conditions that mimic SPARC’s operational modes.
The Milestone program is an important tool to accelerate the commercial fusion energy industry’s progress. It validates participating companies’ general fusion approach and their specific technological milestones, providing useful assurance to investors and other stakeholders. And it does so with minimal risk to taxpayers, since the government pays pre-agreed awards for pre-agreed milestones only when the companies are successful.
For more details on this visit and our milestone achievement, read the press release
#FusionEnergy #SPARC #PowerMoves
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