Shanghai-based fusion energy startup Energy Singularity has achieved a major milestone in the global pursuit of clean and sustainable power by setting a new world record for plasma confinement. Using its HH70 high-temperature superconducting tokamak, the company successfully sustained a plasma current for 1,337 seconds, marking the longest duration ever recorded for a commercially built fusion device.
This achievement highlights not only a significant leap in fusion engineering but also the growing role of artificial intelligence in advanced energy systems. The extended plasma operation was made possible through sophisticated AI-driven plasma control technologies, which enabled precise stabilization and real-time optimization of the tokamak’s performance. The results strongly demonstrate the engineering feasibility of long-duration fusion plasma operation, a critical requirement for practical fusion power plants.
By proving that commercial fusion devices can operate stably for extended periods, Energy Singularity has accelerated progress toward its next-generation reactors, which are being designed with the ultimate goal of achieving net energy gain. This breakthrough strengthens confidence that fusion energy—often referred to as an “artificial sun”—is moving steadily from experimental research toward real-world application, offering a promising pathway to clean, safe, and virtually limitless energy.
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