Computer generated image of GEH BWRX-300
Who:   GE-Hitachi Nuclear Energy (GEH)
What:   Pre-Application review of Licensing Topical Reports associated with the GEH ~300 MWe water cooled, natural circulation small modular reactor (SMR) with passive safety features.
When:   December 2019 to Present

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Project Overview

The staff of the U.S. Nuclear Regulatory Commission (NRC) is currently engaged in pre-application activities for the GEH BWRX-300 small modular reactor (SMR), including the review of numerous licensing topical reports (LTRs) describing the design approaches and methodologies for the BWRX-300 SMR in advance of a 10 CFR Part 50 or Part 52 application. The BWRX-300 is a ~300 MWe water-cooled, natural circulation SMR with passive safety systems. As the tenth evolution of the Boiling Water Reactor (BWR), the BWRX-300 represents the simplest, yet most innovative BWR design since GE began developing nuclear reactors in 1955. The design of the BWRX-300 is based on the U.S. NRC-licensed, 1,520 MWe Economic Simplified BWR and is designed to provide clean, flexible baseload electricity generation.

Contacts for GEH BWRX-300 SMR Pre-application Review Activities
Lead Project Manager James Shea
Contact a Public Affairs Officer

Topical Reports for the GEH BWRX-300 SMR Design

The following table provides access to topical reports that GEH has submitted for NRC staff review and approval:

Submittal Date Title Topical Report Submittal ADAMS Accession No. Staff Final Safety Evaluation Report ADAMS Accession No. Approved version of Licensing Topical Report
12/31/2019 NEDO–33910P-A, Revision 2, BWRX–300, "Reactor Pressure Vessel Isolation and Overpressure Protection."  ML20174A577 ML20176A449 ML21183A262
03/31/2020 NEDO-33911P-A, Revision 3, BWRX–300, "Containment Performance." ML20248H573 ML21008A371 ML22007A024
03/31/2020 NEDO-33912P-A Revision 1, BWRX–300, "Reactivity Control."  ML20248H544 ML20275A373 ML21060B579
09/25/2020 NEDC–33922P-A, Revision 3, BWRX–300, "Containment Evaluation Method (GOTHIC Application to BWRX–300)" ML20269A472 ML22040A004 ML22168A014
01/20/2021 NEDO-33914-A, Revision 2, BWRX-300, “Advanced Civil Construction and Design Approach Licensing Topical Report.” ML21020A137 ML22020A036 ML22168A010

During the course of its review of the LTRs, the NRC staff may issue requests for additional information (RAIs) that is needed to determine the acceptability of methods and approaches described in each LTR. The applicant's responses to RAIs may result in revisions to an LTR and the issuance of an LTR supplement that incorporates all changes.

Additional information can be obtained from ADAMS (99900003).

Page Last Reviewed/Updated Wednesday, September 21, 2022