POWER Magazine•about 15 hours ago
TerraPower’s Kemmerer 1 Enters Construction: Timeline of the Natrium Project’s Road to First Power
Key Takeaway
The start of construction for TerraPower's Natrium reactor marks a pivotal moment for advanced nuclear technology in the U.S., offering a new pathway for firm, carbon-free power generation.
AI Summary
- •TerraPower officially commenced construction on its flagship Natrium sodium-cooled fast reactor plant, Kemmerer Unit 1, in Wyoming on April 23, 2026.
- •This milestone represents a significant advancement in the U.S. effort to commercialize advanced reactor designs, moving them from concept to tangible project execution.
- •For developers and large power consumers, this signals the potential emergence of a new, firm, and carbon-free baseload generation option that could impact future grid stability and energy mix.
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Article Content
TerraPower on April 23, 2026, officially started construction on Kemmerer Unit 1, its flagship Natrium sodium-cooled fast reactor plant in Kemmerer, Wyoming—a milestone that marks the most consequential step yet in the U.S.’s long and fitful effort to move advanced reactor designs from concept into commercial reality. The construction start follows the U.S. Nuclear Regulatory […] The post TerraPower’s Kemmerer 1 Enters Construction: Timeline of the Natrium Project’s Road to First Power appeared first on POWER Magazine .