This round of capital is the largest raised among deep tech and energy companies since CFS' $1.8 billion Series B round in 2021. The almost $3 billion that CFS has raised to date is about one-third of ...

As part of this initiative, CFS will use the data generated and compiled through the use of the Siemens Xcelerator portfolio of industrial software to build its SPARC fusion machine. A visual ...

The fusion power plant will generate about 400 megawatts of electricity at its Chesterfield County site owned by Dominion Energy. Commonwealth Fusion Systems, the largest private fusion company, will ...

A rendering of the Commonwealth Fusion Systems proposal for Chesterfield County. (Courtesy of Commonwealth Fusion Systems) Virginia could soon make history as the home of the world’s first nuclear ...

CFS says the use of this digital twin will help accelerate its efforts to commercialize fusion energy, the same source of energy powering the sun. Commonwealth Fusion’s headquarters in Devens sold for ...

DEVENS, Mass., Jan. 12, 2026 /PRNewswire/ -- Commonwealth Fusion Systems (CFS), the largest and leading private fusion company, today announced that Stephane Bancel, the Chief Executive Officer of ...

“AI factories and data centers require gigawatts of electric power,” said Siemens CEO Roland Busch today at CES 2026. “What if we had an energy source that was clean, safe, affordable, and practically ...

Google has signed an agreement to buy electricity from Commonwealth Fusion Systems’ planned Chesterfield County facility — expected to be the world’s first grid-scale commercial fusion power plant.

DEVENS, Mass., Aug. 28, 2025 /PRNewswire/ -- Commonwealth Fusion Systems (CFS), the largest and leading private fusion company, today announced that it raised $863 million in a Series B2 fundraising ...

The MarketWatch News Department was not involved in the creation of this content. As part of this initiative, CFS will use the data generated and compiled through the use of the Siemens Xcelerator ...

The Nature Index tracks primary research articles from 145 natural-science and health-science journals, chosen based on reputation by an independent group of researchers. The Nature Index provides ...