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Commonwealth Fusion Systems
Building compact fusion power plants based on high temperature superconducting magnets
Devens, US
Founded 2018
500+ employees
About
Commonwealth Fusion Systems, known as CFS, is building fusion power plants. It was spun out of the Massachusetts Institute of Technology in 2018 by a group of MIT scientists and engineers that included Bob Mumgaard, who serves as chief executive. The company is based in Devens, Massachusetts.
Fusion produces energy by joining light atoms, the same process that powers the sun. CFS uses a tokamak, a ring shaped machine that holds hot plasma in place with magnetic fields. Its approach relies on a new kind of high temperature superconducting magnet, which allows a smaller and cheaper machine. In 2021 it tested one of these magnets at record field strength.
The company is building a demonstration machine called SPARC at its Devens site. SPARC is meant to produce more energy from fusion than it takes to heat the plasma. CFS plans a first commercial plant, called ARC, in Virginia, and it has signed agreements to sell power to Google and other buyers. The company remains privately held.
Fusion produces energy by joining light atoms, the same process that powers the sun. CFS uses a tokamak, a ring shaped machine that holds hot plasma in place with magnetic fields. Its approach relies on a new kind of high temperature superconducting magnet, which allows a smaller and cheaper machine. In 2021 it tested one of these magnets at record field strength.
The company is building a demonstration machine called SPARC at its Devens site. SPARC is meant to produce more energy from fusion than it takes to heat the plasma. CFS plans a first commercial plant, called ARC, in Virginia, and it has signed agreements to sell power to Google and other buyers. The company remains privately held.
Contact Commonwealth Fusion Systems
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