Commonwealth Fusion Systems
Commonwealth Fusion Systems is an American company aiming to build a compact fusion power plant based on the ARC tokamak concept. The company is based in Cambridge, Massachusetts.History
CFS was founded in 2018 as a spin-off from the Massachusetts Institute of Technology Plasma Science and Fusion Center. After initial funding of $50 million in 2018 from Eni, CFS closed its Series A in 2019 with a total of $115 million in funding from Eni, Breakthrough Energy Ventures, Khosla Ventures, and others. CFS raised an additional $84 million in Series A2 funding from Temasek, Equinor, and Devonshire Investors, as well as from previous investors.Technology
The company plans to focus on proving new yttrium barium copper oxide high-temperature superconducting magnet technology, demonstrating a large-bore, high-field magnet in 2021. This magnet technology will then be used to construct SPARC, a demonstration net energy tokamak. It then plans to build a power plant based on the ARC design. Both SPARC and ARC plan to use deuterium-tritium fuel.
