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 MarketWatch News Department was not involved in the creation of this content. -- Eni, as a CFS strategic investor, signs offtake agreement worth more than $1 billion for clean fusion power from ...

The fusion power startup recently completed some experiments at Sandia National Laboratory's Z Machine and shared the results ...

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 ...

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 ...

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.

“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 ...

The licensing and manufacturing agreement allows Type One Energy to efficiently design proprietary stellarator fusion magnets by levering CFS' leadership in the development and manufacturing of some ...

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 ...

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 ...