Commonwealth Fusion Systems has begun assembling its SPARC tokamak by placing the first of 18 toroidal-field magnets into the compact fusion device, a step that brings the company closer to its goal ...

A public‑private partnership between Commonwealth Fusion Systems (CFS), the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) and Oak Ridge National Laboratory has led to a ...

Commonwealth Fusion Systems (CFS) is developing a tokamak device called SPARC. The company aims to demonstrate the critical fusion energy milestone of producing more output power than input power for ...

In an unassuming industrial park 30 miles outside Boston, engineers are building a futuristic machine to replicate the energy of the stars. If all goes to plan, it could be the key to producing ...

US private fusion company Commonwealth Fusion Systems has installed the disc-shaped stainless steel cryostat base, marking the start of the assembly of the SPARC tokamak. Meanwhile, Fusion for Energy ...

There are a remarkable number of commercial fusion power startups, considering that it’s a technology that’s built a reputation for being perpetually beyond the horizon. Many of them focus on ...

Nuclear fusion is the holy grail of energy research. Two experiments in France and Massachusetts do fusion differently, but both are making progress. Reading time 6 minutes In September, a very large, ...

Commonwealth has made measurable progress toward its goal of building a practical fusion reactor that generates carbon-free electricity. Explore the 2023 list of 15 Climate Tech Companies to Watch.

DEVENS, Mass., June 4, 2026 /PRNewswire/ -- Commonwealth Fusion Systems (CFS), the global leader in fusion energy, today announced the publishing of five peer-reviewed physics basis papers on the ...

An artist’s interpretation of the inside of a fusion vessel, where some of the inner surfaces are directly exposed to the plasma. Some regions lie in the “magnetic shadow” of other components and are ...