Commonwealth Fusion Systems, a Leader in Fusion Technology, Markets its Key Magnet Technology to the University of Wisconsin

In an exclusive reveal to TechCrunch, Commonwealth Fusion Systems (CFS), a company at the forefront of nuclear fusion technology, announced its plans to deliver a set of its high-tech magnets to the University of Wisconsin-Madison.

This event precedes the launch of CFS’s demonstration reactor, SPARC, by several years. It represents the industry’s initial supply agreement, hinting at a maturity level within the fusion technology sector where supplying components is as critical as forging research and development alliances.

Bob Mumgaard, the CEO of CFS, conveyed to TechCrunch, “The magnets have applications beyond our immediate needs. In constructing a pathway to progress, we aim to assist those following in our footsteps rather than hinder them.”

Nuclear fusion, the process that energizes the sun and stars, is distinct from the nuclear fission reactions that fuel current terrestrial power plants. The quest to harness fusion, promising an abundant and low-cost energy source, has been a long and arduous journey. Yet, recent advancements suggest a turning point, with fusion reactions starting to yield more energy than they consume, attracting significant venture capital to the field. CFS stands out in this arena, leveraged by its inception at MIT and backed by over $2 billion in venture funding, as per Pitchbook data.

The pioneering magnets developed by CFS, in collaboration with MIT scientists, utilize rare earth barium copper oxide (REBCO) to create extraordinarily powerful magnetic fields. This technology is a cornerstone for CFS, enabling smaller, more efficient reactor designs by adeptly containing the reactor’s intensely hot plasma.

The compact nature of these magnets reduces costs and material requirements significantly, paving the way for feasible commercial nuclear fusion power plants. Thus, it’s understandable why there’s interest in acquiring CFS’s magnetic technology, although current sales are focused on non-competitive research initiatives, such as the WHAM project at the University of Wisconsin-Madison, which employs a unique plasma configuration.

The investment in WHAM, supported by the ARPA-E program of the federal government, showcases a collaborative ecosystem, further enriched by affiliations with startups like Realta Fusion, stemming from WHAM’s research efforts, although CFS and Realta do not directly partner.

As part of the agreement with the university, CFS is dispatching not just the magnets but a comprehensive suite including assembly components, cooling, and control systems, with the startup’s software overseeing operational management.

While providing these magnets to the university represents a business transaction—with CFS benefiting financially, the details of the payment remain undisclosed—Mumgaard highlighted the strategic value in the development and sale of these magnetic systems as beneficial for CFS’s business model.