First commercial fusion plant permitted & under construction
2025-10Helion Energy
Chelan County permits Helion's Orion plant in Malaga, WA — up to 50 MW to Microsoft, targeted by 2028.
All actors 
Helion Energy
Profile
Pulsed magneto-inertial fusion; signed a power purchase agreement with Microsoft.
Editorial profile — compiled by us from public sources.
- Founded
- 2013
- Headquarters
- Everett, WA, US
- Funding raised
- $1.5B
Current standings
Standings and milestones are always verified by us against primary sources, regardless of who manages the profile.
Roadmap & milestones
150M°C + first private deuterium-tritium fusion
2026-02Helion Energy
Polaris reaches 150M°C — first privately built machine to do D-T fusion, beating Helion's own 100M°C (Trenta).
$465M Series G at $15.5B valuation
2026-06Helion 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.
