TerraPower

Company US Private Editorial profile Funding raised: $1.5B Website

Profile

Bill Gates-founded; Natrium sodium-cooled fast reactor under construction in Wyoming.

Editorial profile — compiled by us from public sources.

Founded: 2006
Headquarters: Bellevue, 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.

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Roadmap & milestones

First non-LWR construction permit in 40+ years

2026-03

TerraPower / NRC

The NRC issued a construction permit for TerraPower's Natrium plant (Kemmerer, Wyoming) — the first US commercial advanced-reactor approval in ~a decade and the first non-light-water reactor approval in over 40 years. 345 MWe sodium-cooled fast reactor with molten-salt storage boosting to 500 MW; completion targeted 2030.

Press release · 2026-03

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