Commonwealth Fusion details 400 MW reactor physics

Commonwealth Fusion has published five peer-reviewed papers outlining the physics case for its proposed 400 MW fusion power reactor, ARC. These papers update the design and model its expected output, aiming to accelerate fusion power development. Unlike the longer-term ITER project, Commonwealth Fusion's approach utilizes high-temperature superconductors for a more compact and faster-to-deploy tokamak reactor. The ARC design is expected to generate 1.13 GW of fusion power, with 500 MW extracted, leaving 400 MW for the grid after accounting for plant operations. Key challenges addressed include managing magnetic instabilities and handling helium 'ash' within the reactor.