US EditionWendelstein 7-X Sets New Performance Records in Nuclear Fusion Research
- On May 22, 2025, during the OP 2.3 experimental run, the Wendelstein 7-X fusion device in Greifswald, Germany, established a new record for plasma performance in magnetic confinement fusion.
- This achievement followed deliberate reductions of the confining magnetic field and aiming to elevate plasma pressure, surpassing previous tokamak benchmarks like JET and JT-60U.
- W7-X sustained a triple product record continuously for 43 seconds, increased energy turnover to 1.8 gigajoules over 360 seconds, and reached plasma pressure of 3% across the full volume.
- Thomas Klinger, Head of Stellarator Dynamics, stated that achieving tokamak-comparable triple product values during extended plasma pulses represents a significant step forward in developing a stellarator capable of functioning as a fusion power plant.
- These advances validate stellarators as a viable fusion path, suggesting international collaborations move fusion power plants closer to providing clean and limitless energy worldwide.
15 Articles
15 Articles
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Nuclear fusion — and its potential for abundant, clean energy — has been around for years, and while breakthroughs have been made, up to this point, no one has been able to harness that energy and produce it at scale. But according to TechCrunch, the startup Realta Fusion might be about to change that. Traditional forms of energy generation, like coal and gas, produce massive amounts of planet-warming pollution like carbon dioxide. This supercha…
Demonstration of reduced neoclassical energy transport in Wendelstein 7-X
Research on magnetic confinement of high-temperature plasmas has the ultimate goal of harnessing nuclear fusion for the production of electricity. Although the tokamak1 is the leading toroidal magnetic-confinement concept, it is not without shortcomings and the fusion community has therefore also pursued alternative concepts such as the stellarator. Unlike axisymmetric tokamaks, stellarators possess a three-dimensional (3D) magnetic field geomet…
Wendelstein 7-X sets new performance records in nuclear fusion research
On May 22, the latest experimental campaign concluded at the world's most powerful nuclear fusion device of the stellarator type. Through collaboration between researchers from Europe and the U.S., Wendelstein 7-X achieved, among other milestones, a world record in a key parameter of fusion physics: the triple product. This value now exceeds previous tokamak records for long plasma durations.
The stellarator was long regarded as too complicated for practice. But Wendelstein 7-X defies all doubts: with new record values, the technical outsider could turn out to be a real hope. (Read more)
Wendelstein 7-X Achieves Fusion Milestone with Record-Breaking Triple Product
Berlin, Germany (SPX) Jun 04, 2025 In a significant advance for nuclear fusion research, the Wendelstein 7-X (W7-X) stellarator at the Max Planck Institute for Plasma Physics has achieved a new world record for the triple product during extended plasma operation. This milestone, reached in the OP 2.3 campaign, demonstrates stellarators' potential to meet the requirements of a future fusion power plant. On May 22, researchers sust
A German and a French startup want to build independently of each other until the beginning of the 2030 fusion reactors. Why they rely on a technology that has so far been neglected and how they want to implement their plans.read more on t3n.de
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