TerraPower
Bill Gates's Natrium reactor, under construction in Wyoming.
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TerraPower's 345 MW Natrium sodium-cooled reactor with molten-salt storage began non-nuclear construction at Kemmerer, Wyoming in 2024 — the furthest-along advanced reactor in America — with data-center partnerships announced as it scales.
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Record reviewed as of 2026-01-15 — see Methodology.