Companies / org-us-sfr-owner
US SFR Owner, LLC
Holder of NRC construction permit CPAR-1 (9 March 2026) for Kemmerer Power Station Unit 1. The NRC describes it as a wholly owned subsidiary of TerraPower, which filed the application on its behalf, and its final environmental impact statement notice says it plans to build and operate the unit. No operating licence is implied.
- Roles
- Operator
- Organization type
- operator
- Country
- United States
- Aliases
- —
- Listing status
- Unknown
- Exchange / ticker
- —
- Ownership / control
- unknown
The NRC identifies US SFR Owner as wholly owned by TerraPower. Its own shareholder structure was not separately established; TerraPower's status is not assigned to this subsidiary. - Website
- —
- Confidence
- medium
- Last verified
- 2026-10-10
Linked designs
- No designs tracked here.
Tracked deployment projects
1 linked project records: 1 construction. These include proposals and historical cancelled or suspended plans; the count is not reactors built. Stages are the last recorded classifications, not proof of current activity. A recorded operator/host field does not by itself establish who will operate a reactor. A project without a recorded regulatory action is not necessarily without permission.
- Natrium Kemmerer Unit 1 — Construction · United States
Recorded link: operator/host field · project record checked 2026-10-10 · 1 recorded project action · sources
Ownership & relationships
- TerraPower — parent of US SFR Owner, LLC (wholly owned subsidiary) · as of 2025-10-23. NRC final EIS notice, 90 FR 48507.
Milestones
- None recorded in this release.
Organization-level unresolved information
- None noted for this organization; linked projects may still have open evidence.
Sources
- Federal Register 91 FR 12628 (16 Mar 2026): Kemmerer Power Station Unit 1 construction permit and record of decision (regulator_primary, accessed 2026-10-03)
- Federal Register 90 FR 48507 (23 Oct 2025): Kemmerer Power Station Unit 1 final environmental impact statement (regulator_primary, accessed 2026-10-10)
- NRC: TerraPower, LLC — Kemmerer Power Station Unit 1 Application (page updated 14 September 2026) (regulator_primary, accessed 2026-10-10)