Commonwealth Fusion Systems joins UK fusion research initiative

The partnership grants the Massachusetts-based company early access to the new LIBRTI facility at the UKAEA’s Culham Campus. This site features a high-flux neutron source designed to simulate the harsh conditions of a full-scale fusion reactor. By testing blanket designs here, researchers can verify how lithium atoms convert into tritium when struck by neutrons, a process essential for the commercial viability of fusion energy.

For CFS, the collaboration directly supports the development of its ARC fusion power plant, which is slated to generate electricity in Virginia by the early 2030s. The company, which spun out of MIT in 2018 and has secured over US$3 billion in capital, will design experimental setups and build test articles for the facility. Brandon Sorbom, Co-founder and Chief Science Officer at CFS, noted that the specialized environment is vital for increasing confidence in their blanket system design and gaining hands-on engineering experience before full-scale deployment.