Commercial Partners
Google and Commonwealth Fusion Systems (CFS) announced a new global milestone, a bold partnership to develop, deploy and scale clean, secure fusion power. We expect it’ll cement CFS leadership in commercializing the technology.
This partnership has multiple facets:
- Google signed an offtake agreement for 200 megawatts (MW) of clean fusion power from CFS’s inaugural ARC power plant in Chesterfield County, Virginia.
- Google, an investor in CFS since 2021, is increasing its investment stake in CFS.
- The commitment to CFS’ first ARC fusion power plant and the additional corporate investment are part of a strategic partnership in which Google has the option to purchase power from future plants.
- The agreement reinforces CFS’ global leadership toward developing commercial fusion power — a technology that promises to be transformative in the face of accelerating long-term growth in energy demand.
The agreement pairs the leading fusion energy developer with one of the most innovative companies in the world, a pioneer in commercial agreements that drove the success of new clean energy sources. It shows a strong appetite for fusion energy’s advantages: a source of clean, safe, and firm power that can be built in the same regions where homes and businesses have a growing electricity appetite.
“By entering into this agreement with CFS, we hope to help prove out and scale a promising pathway toward commercial fusion power. We’re excited to make this longer-term bet on a technology with transformative potential to meet the world’s future energy demand, and support CFS in their efforts to reach the scientific and engineering milestones needed to get there,” said Michael Terrell, Head of Advanced Energy at Google.
Eni
Eni, an integrated global energy company based in Italy and one of CFS’ earliest investors, has signed an agreement to purchase power from the first ARC fusion power plant.
The deal is worth more than $1 billion and helps propel fusion energy onto the electricity grid by advancing its commercialization and industrialization. ARC is designed to generate 400 megawatts of clean, safe, and secure power starting in the early 2030s.
Eni is a longtime CFS partner. Eni first invested in CFS in 2018 and increased its stake during the Series A round in 2020, Series B in 2021, and Series B2 in 2025. And in 2023, the companies announced a multiyear collaboration agreement to advance the commercialization of fusion energy. This long-term partnership is part of Eni’s integrated effort to advance technology that preserves the environment and preserve reliable access to energy.
“This strategic collaboration, with a tangible commitment to the purchase of fusion energy, marks a turning point in which fusion becomes a full industrial opportunity,” said Eni CEO Claudio Descalzi. “Eni has been strengthening its collaboration with CFS with its technological know-how since it first invested in the company in 2018. As energy demand grows, Eni supports the development of fusion power as a new energy paradigm capable of producing clean, safe, and virtually inexhaustible energy. This international partnership confirms our commitment to making fusion energy a reality, promoting its industrialization for a more sustainable energy future.”
Dominion Energy
A collaboration between Dominion Energy Virginia and CFS will speed the arrival of the world’s first grid-scale fusion power plant in Chesterfield County, Virginia, a region with some of the fastest growing demand for power.
The Virginia utility will provide CFS with development and technical expertise that’ll help connect the first ARC fusion power plant to the grid. In addition, Dominion will offer leasing rights for the planned site for the ARC fusion power plant. CFS will provide Dominion with knowledge about how to build and operate fusion power plants that’ll give the utility an early view into this emerging source of power, providing an advantage in the scaling and deployment of fusion as it matures.
“Commonwealth Fusion Systems is the clear industry leader in advancing the exciting energy potential of fusion,” said Edward H. Baine, President of Dominion Energy Virginia, in the 2024 announcement of the agreement. “Our customers’ growing needs for reliable, carbon-free power benefits from as diverse a menu of power generation options as possible, and in that spirit, we are delighted to assist CFS in their efforts.”
Realta Fusion
Through a long-term strategic partnership with Realta Fusion, CFS will design and build high-temperature superconducting (HTS) magnets to accelerate the commercialization of Realta’s compact, scalable, modular - CoSMo fusion™ - energy systems. The partnership begins with the Realta machine called Anvil, and will continue through its later fusion power plants.
HTS magnets are key enablers for high-performance fusion machines like CFS’ tokamaks and the magnetic mirror systems that Realta is developing. This partnership will help speed Realta’s development work and make its machines more economical by taking advantage of CFS’ proven capability to design, manufacture, test, and deploy HTS magnets. That capability includes a supply chain we’ve developed that can make high volumes of HTS tape and other critical components.
“Commercializing magnetic mirror fusion systems requires integrating multiple cutting-edge technologies. By working with the world’s leading HTS magnet manufacturer, we are significantly de-risking one of the most critical of these technologies,” said Realta Fusion CEO Kieran Furlong. “Knowing that we can get the magnets we need, when we need them, from the best developed supply chain, is a huge leap forward for Realta.”
The partnership extends the work CFS did to build magnet systems for the University of Wisconsin’s WHAM project (Wisconsin HTS Axisymmetric Mirror), a precursor to Realta’s newer fusion work. Under the partnership, CFS will provide fully integrated magnet systems — packages that include hardware like cryogenics to keep the magnet cold, power to provide its electrical current, and structural supports. As Realta advances through commercialization, this partnership has the potential to generate billions of dollars of revenue for CFS.
Type One Energy
Type One Energy licensed CFS’ groundbreaking high-temperature superconducting (HTS) cable technology to develop magnets for its fusion machine, a type of device called a stellarator. CFS has shown its HTS magnet technology can be used to generate the very high magnetic fields that are essential to fusion devices such as Type One Energy’s stellarators or CFS’ tokamaks.
The agreement means Type One Energy can benefit from CFS’ experience in manufacturing the world’s most powerful HTS fusion magnets. And it expands the market for CFS’ magnet business by aligning with the leading stellarator fusion company in the market.
“Our agreement with CFS represents the best of cooperative relationships within the fusion industry,” said Christofer Mowry, CEO of Type One Energy, in the 2025 announcement of the agreement. “We get unique access to leading manufacturing capabilities and the HTS cable background technology that our company would otherwise need to recreate, reducing risk, cost, and schedule in the development and delivery of our own stellarator fusion magnets.”