Commonwealth Fusion Systems books a $1B+ power deal for its future fusion reactor | TechCrunch

"The power plant will be built outside of Richmond, Virginia, close to some of the highest densities of data centers in the country. The 400-megawatt fusion reactor, called Arc, is expected to open in the early 2030s, CEO Bob Mumgaard said. The Eni agreement is the second such deal for Commonwealth Fusion Systems (CFS). In June, Google said that it would buy half the reactor's output. When asked, neither CFS nor Eni would say how much power the deal covers nor its timeline."

"Mumgaard told reporters last week that CFS's first power plant, the demonstration-scale Sparc reactor in Devens, Massachusetts, is 65% complete. The company has previously said it plans to turn on Sparc later in 2026, and Mumgaard confirmed that CFS is "on track to do that." "One of the reasons we built Sparc is so that we could actually get the experience of what it's like to build a nearly full-scale system," he said."

Commonwealth Fusion Systems agreed to sell Italian energy company Eni more than $1 billion worth of power from its first commercial fusion reactor. The 400-megawatt Arc plant will be built outside Richmond, Virginia, near major data-center concentrations and is expected to begin operation in the early 2030s. Google previously agreed to purchase half the reactor's output. CFS's demonstration-scale Sparc reactor in Devens, Massachusetts, is reported 65% complete and is planned to be turned on later in 2026. Sparc aims to validate near–full-scale construction and net power gain, and uncertainty remains until Sparc proves performance and funding is consumed.

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