State

Construction

Construction is not commissioning.

Open question

What physical work is evidenced for this unit: site work, equipment, installation, mechanical completion?

  1. Current stateConstruction23 April 2026 · Company reported · TerraPower

    Before: Not established in reviewed sources. Source: TerraPower ↗

  2. Earlier statementConstruction23 May 2026 · Government record · U.S. Department of Energy, Office of Nuclear Energy

    Before: Not established in reviewed sources. Source: U.S. Department of Energy, Office of Nuclear Energy ↗

  3. Earlier statementSite work10 June 2024 · Company reported · TerraPower

    Before: Not established in reviewed sources. Source: TerraPower ↗

Evidence detail

Construction

DOE account of the permit and the start of plant construction

Construction is not commissioning.

“TerraPower received its construction permit in March 2026 — the first ever issued by the NRC for a commercial non-light-water power reactor — and broke ground on the Natrium plant construction the following month.”
Attribution
Government record
Publisher
U.S. Department of Energy, Office of Nuclear Energy
Dated
23 May 2026
First public disclosure
23 May 2026
State before
Not established in reviewed sources
Source read
11 November 2026

Inspect primary source: U.S. Department of Energy, Office of Nuclear Energy ↗

What this does and does not establish

An exact passage match shows the source says this. It does not prove the underlying claim is true.

Watch constructionInspect project history