Pulsed High Temperature Superconducting Central Solenoid For Revolutionizing Tokamaks
Critical Need:
Project Innovation + Advantages:
The tokamak is the most scientifically mature fusion energy concept, which confines hot plasma in the shape of a torus (similar to a donut). This plasma is controlled in part by a central solenoid electromagnet. Using high-temperature superconductors (HTS) and an innovative design, Commonwealth Fusion Systems (CFS) and its partners aim to build a central solenoid capable of quickly changing (“fast ramping”) its current and magnetic field, while also being robust enough to survive many thousands of cycles. This new HTS magnet will enable a new mode of tokamak operation, in which power output is repetitively pulsed. By comparison, traditional, steady-state tokamaks require expensive and complex external current-drive systems, and aggressive plasma physics with substantial scientific risk. The pulsed-tokamak power-plant pathway has the potential to reduce costs, speed timelines, and revolutionize the future of fusion power.
Potential Impact:
Accelerating and lowering the costs of fusion development and eventual deployment will enable fusion energy to contribute to:
Security:
Fusion energy will ensure the U.S.’s technological lead and energy security.
Environment:
Fusion energy will improve our chances of meeting growing global clean-energy demand and realizing cost-effective, net-zero carbon emissions, while minimizing pollution and avoiding long-lived radioactive waste.
Economy:
As a disruptive technology, fusion energy will likely create new markets, opportunities, and export advantages for the U.S.