How Commonwealth Fusion Methods is designing its first fusion reactor
“AI factories and knowledge facilities require gigawatts of electrical energy,” stated Siemens CEO Roland Busch right now at CES 2026. “What if we had an vitality supply that was clear, protected, inexpensive, and virtually limitless?”
There are a number of solutions to that query, together with wind and photo voltaic, however Busch was referring to fusion energy, which heats and compresses atoms till they fuse, releasing great quantities of vitality within the course of. Business fusion energy remains to be years away, however a number of firms, together with Commonwealth Fusion Methods (CFS), are within the strategy of constructing demonstration crops to show the idea’s viability.
“In fusion, we’re growing a whole new trade,” stated CFS co-founder and CEO Bob Mumgaard. “You’ll be able to’t simply go and purchase a fusion plant or a fusion half.” To construct the components that can be assembled into an influence plant, Mumgaard revealed that his firm has been utilizing Siemens software program and instruments to design and function the techniques.
Right now, CFS additionally introduced that, with the assistance of Nvidia, it will likely be constructing a digital twin of Sparc, its demonstration reactor. The corporate lately put in Sparc’s first 24-ton magnet on the reactor’s web site in Massachusetts.
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