Pulsed magneto-inertial fusion; signed a power purchase agreement with Microsoft.
Records now fall on separate axes — gain 4.1 at NIF, 1,337 s at WEST, 150M°C at Helion — while the fairest physics yardstick, the triple product, still belongs to a 1996 experiment. A read of every fusion number this tracker holds, and what each one does and does not prove.
Helion Energy / Washington DOH — Helion secured the licenses to build and operate its Orion plant in Malaga, WA — a Radioactive Materials License and a Radioactive Air Emissions License from the Washington Department of Health — the first US (and world) fusion firm to clear full plant licensing. Under the NRC's decision to regulate fusion like particle accelerators rather than fission reactors, the state DOH is the licensing body. Electricity to Microsoft is targeted by 2028.
Helion Energy — Thrive Capital-led $465M Series G nearly triples Helion's valuation to $15.5B and brings total raised to ~$1.5B, funding manufacturing scale-up toward its 2028 power deal with Microsoft.
Helion Energy — Polaris reaches 150M°C — first privately built machine to do D-T fusion, beating Helion's own 100M°C (Trenta).
Helion Energy — Chelan County permits Helion's Orion plant in Malaga, WA — up to 50 MW to Microsoft, targeted by 2028.
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NIF / LLNL 
WEST (CEA)