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Tracker · Pre-application

Energy Northwest New Nuclear

The U.S. Nuclear Regulatory Commission (NRC) is currently engaged in pre-application activities with Energy Northwest regarding a construction permit application for up to 12 Xe-100 small modular reactor (SMR) units on the Department of Energy’s Hanford Reservation, at a site adjacent to Columbia Generating Station in Benton County, Washington, for the purpose of addressing electricaldemand in the Pacific northwest. Additional information on pre-application activities can be obtained from ADAMS using a search by docket number 99902130.

Who
Energy Northwest New Nuclear
Design
Xe-100
Reactor type
High Temperature Gas Reactors
Status
Active on the NRC index
What
Pre-Application activities associated with a future construction permit application (10 CFR Part 50 application).
When
August 2024 to Present
Site
Not stated on the NRC page in this snapshot.
NRC page reviewed
Wednesday, September 23, 2026

Dockets

Status timeline

Dates are printed as the NRC page prints them, including the actual (A) or target (T) mark.

The NRC page in this snapshot does not list a milestone table.

NRC activity table

ProductTypeReferenceStatus
Energy Northwest New Nuclear Regulatory Engagement PlanRegulatory Engagement PlanML24239A815No review requested
Energy Northwest New Nuclear Quality Assurance Program Description for New Nuclear ProgramTopical ReportML24352A486Safety Evaluation
Methodology for Determining the Acceptability of Historical InformationWhite PaperML25183A400Feedback provided ML25353A521
Acceptability of Historical Information - FloodingWhite PaperML25211A360Feedback provided ML25353A521
Energy Northwest New Nuclear Small Modular Reactor (SMR) Integrated Environmental ReviewWhite PaperML25169A279Feedback providedML26036A040
Energy Northwest New Nuclear, LLC - Acceptability of Historical Information - GeotechnicalWhite PaperML26013A121Feedback providedML26105A242
Energy Northwest New Nuclear, LLC - Acceptability of Historical Information - VolcanicWhite PaperML26015A527Feedback providedML26071A307

Related Federal Register notices

Included when a notice shares a docket printed on the NRC page, or when the notice title repeats the project or design name. Other NRC notices are left out.

No in-scope Federal Register notice is linked to this project.

NRC project page · Applicant website listed by the NRC