{"id":310257,"date":"2025-10-29T11:30:00","date_gmt":"2025-10-29T15:30:00","guid":{"rendered":"https:\/\/inspenet.com\/noticias\/japan-moves-toward-commercial-fusion-power-with-successful-test\/"},"modified":"2025-10-30T10:27:39","modified_gmt":"2025-10-30T14:27:39","slug":"japan-moves-toward-commercial-fusion-power-with-successful-test","status":"publish","type":"noticias","link":"https:\/\/inspenet.com\/en\/news\/japan-moves-toward-commercial-fusion-power-with-successful-test\/","title":{"rendered":"Japan moves toward commercial fusion power with successful test"},"content":{"rendered":"\n

Helical Fusion, a Japanese startup specializing in Helical Stellarator fusion power reactors, has successfully completed the world’s first test<\/strong> of a high-temperature superconducting (HTS) coil without electrical insulation<\/strong>. This validation, carried out under conditions simulating the real magnetic environment of a fusion reactor, represents a decisive step in the development of commercial fusion power<\/a><\/strong>. <\/p>\n\n\n\n

The test, conducted in collaboration with the National Institute for Fusion Science (NIFS)<\/strong>, replicated the complex and hostile magnetic environment of a\u00a0fusion reactor<\/a><\/strong>\u00a0, with intersecting magnetic fields that can damage superconductors. The experiment showed that the coil maintained a stable and super-powerful current<\/strong> (40 kA) under a brutal external magnetic field (7 Tesla, thousands of times stronger than a refrigerator magnet), paving the way for the future integrated demonstration device, Helix HARUKA<\/strong>.<\/p>\n\n\n\n

The technology behind the achievement<\/h2>\n\n\n\n

The high-temperature superconducting (HTS) coil is a super-powerful electromagnet that, when cooled, has no electrical resistance<\/strong> and can create huge magnetic fields with very little energy. The magnetic environment in which this coil was tested included external and self-generated fields, reproducing the complex electromagnetic conditions expected in future commercial fusion reactors. <\/p>\n\n\n\n

\"HTS
Non-insulated HTS superconducting coil developed by Helical Fusion for fusion reactor.<\/figcaption><\/figure>\n\n\n\n

A clear and ambitious roadmap<\/h2>\n\n\n\n

This breakthrough is part of the Helix Program<\/strong>, an initiative led by Helical Fusion<\/a><\/strong> with the goal of commissioning the world’s first commercially viable fusion power plant in the<\/strong> 2030s. The strategy is articulated in three phases: <\/p>\n\n\n\n