Private fusion energy ventures are closing the gap toward commercial viability. Advances in high-temperature superconducting magnet technology have enabled higher magnetic field density within smaller tokamak footprints, reducing capital cost requirements.
Engineering Hurdles
While plasma confinement stability has improved, sustained neutron flux management and tritium breeding remain critical operational bottlenecks. Pilot plants scheduled for the late 2020s aim to demonstrate continuous grid integration under real-world baseload demand.