Topic
Terrapower
Start here: Natrium, explained: TerraPower's reactor with a built-in battery — NNN's reference piece on this topic.
Natrium timeline: every milestone from ARDP award to first power
Every dated milestone in TerraPower's Natrium project — from the October 2020 ARDP award to construction at Kemmerer and the 2031 completion target.

Doosan Enerbility wins TerraPower Natrium component contract
Doosan Enerbility will supply the core barrel, guard vessel and internal supports for TerraPower’s 345 MWe Natrium unit in Wyoming.

TerraPower names Hyundai E&C as EPC for up to eight Natrium reactors
TerraPower named Hyundai E&C as EPC for up to eight Natrium reactors with completion, price and performance guarantees, plus an SK Innovation Korea term sheet.

TerraPower becomes first advanced reactor company to join INPO
TerraPower joined the Institute of Nuclear Power Operations on July 21, 2026 — the first advanced reactor company admitted, backing the 345-MWe Natrium build.
TerraPower begins excavation at Kemmerer Unit 1
TerraPower says crews have begun excavation at Kemmerer Unit 1, moving the 345-megawatt Natrium reactor and storage system toward foundation work.
