The Natrium® reactor and energy storage system redefines what nuclear technology can be: emissions-free, competitive and flexible. Built for the 21st century grid, TerraPower's Natrium …

Safety features include a long thermal response time, a large margin to coolant boiling, a primary cooling system that operates near atmospheric pressure, and an intermediate sodium system …

Jun 25, 2025 · Incidentally, the word natrium is Latin for sodium. In fact, it’s where sodium’s elemental symbol—Na on the periodic table—comes from. The Natrium design is a …

Apr 6, 2021 · As a sodium-based technology, the reactor offers natural, inherent safety characteristics and high efficiency and has significant, existing operational performance data. …

Jun 10, 2024 · “The Natrium reactor’s innovative design will launch a new approach to nuclear plant construction that is designed to be safer, cleaner, faster, and more efficient than many …

The U.S. Nuclear Regulatory Commission (NRC) is currently engaged in pre-application activities interactions for the Natrium reactor. The Natrium design combines features from the previous …

Feb 19, 2025 · The Natrium technology features a 345 MWe sodium-cooled fast reactor with a molten salt-based energy storage system. The Natrium demonstration project is being …

Jun 12, 2024 · TerraPower has begun construction on its 345-MW Natrium sodium-cooled fast reactor demonstration project near Kemmerer, Wyoming, marking the first advanced non-light …

Apr 4, 2024 · Advancing in the nuclear energy sector, a pioneering initiative is propelling the Natrium technology forward, a state-of-the-art nuclear reactor design that harmonizes a 345 …

Built for the 21st century grid, TerraPower’s Natrium technology is one of the fastest and lowest-cost paths to advanced, zero carbon energy.