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Fusion Power Leaps Forward With New Superconducting Magnets
29 Jun
Summary
- World's largest toroidal field magnet for fusion reactor unveiled.
- High-temperature superconducting central solenoid coil shows leading performance.
- Facility aims for net fusion power gain and electricity generation by 2030.

Scientists and engineers have announced major progress in the development of two critical superconducting magnets for future fusion reactors. These breakthroughs represent a significant step toward making fusion energy a practical electricity source.
One development is the world's largest toroidal field magnet, weighing 582 metric tons. This magnet is essential for maintaining plasma within the reactor, preventing it from touching the walls. Its volume and energy storage capacity reportedly surpass those of the International Thermonuclear Experimental Reactor's magnet.
The second breakthrough involves a high-temperature superconducting central solenoid coil, which has completed full-condition testing with leading performance indicators. This coil is vital for initiating and sustaining the fusion reaction, a key technology for practical electricity generation from fusion.
These successive advancements bolster China's capabilities in fusion reactor research and development. A major fusion research facility, the Burning Plasma Experimental Superconducting Tokamak in Hefei, is under construction and aims to achieve net fusion power gain and demonstrate electricity generation by approximately 2030.