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Japanese nuclear fusion startup Helical signs breakthrough energy deal

Nikkei Asia · last updated
Technology

Japanese nuclear fusion startup Helical signs breakthrough energy deal

Agreement to supply power to supermarket chain in 2030s is 1st for domestic industry

Japan’s Helical Fusion says its plant will feature a double helix of high-temperature superconducting cables that create a strong magnetic field cage to hold plasma. (Helical Fusion)

SHOTARO TANI

December 8, 2025 15:20 JST

TOKYO — Startup Helical Fusion has signed an energy deal with a supermarket chain, in a first for Japanese nuclear technology that aims to replicate the power of the sun.

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