Overview of the high-field path to fusion energy

The SPARC mission is to create and confine a plasma that produces net fusion energy for the first time and the ARC mission is to produce net fusion electricity for the first time. High- temperature, high-field superconductors are the fundamental technology that enables SPARC and ARC to be built at a relatively small scale compared to other proposed net-energy and net-electricity tokamaks; the smaller scale enables them to be completed on a faster timeline. Following the successful completion of the SPARC Toroidal Field Model Coil in summer 2021 and the $1.8B Series B financing for Commonwealth Fusion Systems (CFS) in winter 2021, CFS and its partners are full-steam-ahead on completing the SPARC design and ramping up SPARC construction. The project remains on schedule for first plasma in 2025. In addition, the Series B allows early ARC design and R&D to start in earnest.