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TerraPower
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TerraPower, LLC is an American nuclear reactor design and development engineering company headquartered in Bellevue, Washington.
TerraPower is developing multiple designs of fast-neutron reactors, including a sodium-cooled fast reactor (SFR) and a molten-salt reactor. As of 2026, the company is constructing its Natrium SFR design in Kemmerer, Wyoming as the Kemmerer Power Station.