CFS Publishes 5 Peer-Reviewed ARC Power Plant Physics Papers — 58 Scientists Validate 400 MW Net Electricity Design

Commonwealth Fusion Systems announced on June 4, 2026 the publication of five peer-reviewed papers in a special issue of the Journal of Plasma Physics (Cambridge University Press) providing a comprehensive physics basis for the ARC commercial fusion power plant. Co-authored by 58 scientists from MIT, Columbia University, UC San Diego, KTH Royal Institute of Technology, Chalmers University of Technology, and the Max Planck Institute for Plasma Physics, the papers validate that ARC will produce approximately 1.1 gigawatts of fusion power and deliver 400 megawatts of continuous net electricity to the grid. The five papers cover: (1) ARC physics basis overview; (2) power and particle exhaust; (3) disruption physics and strategy; (4) performance and transport dynamics; (5) magnetohydrodynamics foundations. Chief Engineer Alex Creely stated: 'If we build the ARC tokamak and power plant as we intend, it'll work,' underpinned by 'a solid foundation in proven physics.' CEO Bob Mumgaard emphasized the papers 'validate and de-risk' CFS's approach to delivering 'electricity on the grid in the early 2030s.' The work follows seven SPARC-focused papers published in 2020 and builds on learnings from SPARC's construction (now targeting first plasma 2027). The research received DOE Milestone-Based Fusion Development Program support. ARC is designed as the commercial follow-on to SPARC, with a PJM grid interconnection application already filed for CFS's Virginia site.