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U.K. energy company Tokamak Energy has made another nuclear fusion energy breakthrough.
Interesting Engineering reported that the company had reproduced fusion power plant fields in its Demo4 magnet system.
As the U.S. National Science Foundation explained, when two atomic nuclei come together, they create a new nucleus.
The nuclei are usually hydrogen, and when they fuse, that new nucleus releases nuclear fusion energy. It’s the same kind of energy the sun uses to burn bright, and it has the potential to power many homes.
Though fusion energy is known for producing heat, the system reached magnetic field strengths of 11.8 Tesla at a frigid minus-405.4 degrees Fahrenheit.
As Interesting Engineering said, this could mean that systems with Demo4 magnets could operate with low cooling costs.
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Creating the proper conditions to make fusion energy in this way hasn’t been easy. This is the first time that fusion power plant fields have ever been replicated in a High Temperature Superconducting magnet configuration.
As Graham Dunbar, a Demo4 chief engineer, said in a Tokamak Energy press release, “This isn’t just about achieving a number; it’s about gaining the confidence and build expertise to scale our technology for future energy-producing fusion systems.”
This large feat could pave the way for even more fusion tech advancements that could benefit many people.
Fusion energy has the potential to become a limitless energy source. With more development, it could supplement or even surpass other sustainable sources, such as wind and solar.
As the NSF said, though fusion energy generates a lot of heat, it doesn’t create radioactive waste like nuclear fission energy does.
Fusion could reduce energy costs for families, businesses, and more if these research and engineering efforts continue.
The CEO of Tokamak Energy, Warrick Matthews, called the testing a “major victory” in the press release.
“Demo4 represents over a decade of HTS innovation at Tokamak Energy,” Matthews said. “Born from our fusion mission, it validates one of the technical solutions for getting clean, limitless, safe and secure fusion energy on the grid.”
While it will take some time for these results to be applied, Tokamak Energy’s research is moving full speed ahead. The company stated in its press release that it expects to see more results in early 2026.
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