Pacific Fusion targets key commercialization hurdle; Kyoto Fusioneering raises $162M; Marathon Fusion tackles tritium supply; Inertia Enterprises accelerates fusion fuel production

Dave Thomas, editor of Fusion News and fusion filmmaker covering the industry for over a decade, gives this week’s global Fusion News update.  Links to all of the stories mentioned are included below.1. Pacific Fusion’s next fusion machine could clear a key hurdle to commercial powerhttps://techcrunch.com/2026/08/25/pacific-fusion-next-fusion-machine-could-clear-key-hurdle-to-commercial-power/2. Kyoto Fusioneering raises $162 millionhttps://kyotofusioneering.com/en/news/2026/08/24/43503. Marathon Fusion tackles one of fusion’s biggest fuel problemshttps://heatmap.news/climate-tech/marathon-fusion-lithium-tritium4. Inertia Enterprises cuts fusion fuel production from days to hourshttps://techcrunch.com/2026/08/20/inertia-enterprises-finds-a-way-to-make-its-fusion-fuel-fast/Bonus stories:STEP passes 50 fusion patent applicationshttps://stepfusion.com/uk-fusion-energy-hits-major-ip-milestone/Eni sees fusion as its “next refinery”https://www.ft.com/content/e6a069b6-69f8-4a21-9873-3cc0736d27e2?syn-25a6b1a6=1