HH70 maintains steady-state plasma for 1,337 seconds, marking a new benchmark in Fusion research
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Web Desk
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SHANGHAI: Fusion startup Energy Singularity has set a world record after its high-temperature superconducting (HTS) tokamak, HH70, maintained a steady-state plasma current for 1,337 seconds the longest ever achieved by a commercially developed fusion device.
Nuclear fusion, often called the “artificial sun,” replicates the reactions powering stars and is seen as a solution to global energy demands and carbon reduction goals.
Established in 2021, Energy Singularity is China’s first private fusion company. Since commissioning the world’s first HTS tokamak in June 2024, HH70 has completed over 5,700 experimental runs, recently extending pulse durations into the thousand-second range.
The breakthrough was credited to the continuous optimisation of the firm’s AI-based plasma control system.
“This achievement demonstrates that the integration of HTS and AI technologies is now engineering-feasible, paving the way for affordable, high-efficiency fusion power plants,” said co-founder Dong Ge.
Energy Singularity aims to bring the cost of fusion electricity on par with or below conventional thermal power. The HH70, featuring 96% localisation and independent intellectual property, will serve as a key platform for the next-generation HH170, which targets net energy gain.
Shanghai is fast emerging as a global hub for fusion innovation, including HTS tokamaks and laser-based fusion systems.
