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Énergie et environnement · 14/02/20111 min de lecture

Office of New Reactors; Interim Staff Guidance on Impacts of Construction of New Nuclear Power Plants on Operating Units at Multi-Unit Sites

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Résumé

The NRC staff is soliciting public comment on its proposed Interim Staff Guidance (ISG) COL-ISG-022 entitled "Impacts of Construction of New Nuclear Power Plants on Operating Units at Multi-Unit Sites" (Agencywide Documents Access and Management System (ADAMS) Accession No. ML093440252). Through this ISG, the NRC staff provides guidance for assessing combined license (COL) applicant compliance with the requirements of Title 10 of the Code of Federal Regulations, Section 52.79(a)(31) (10 CFR 52.79(a)(31)). This regulation requires applicants for a COL intending to construct and operate new nuclear power plants (NPPs) on multi-unit sites to provide an evaluation of the potential hazards to structures, systems, and components (SSCs) important to safety for the operating units resulting from construction activities. The NRC staff issues COL-ISGs to facilitate timely implementation of current staff guidance and to facilitate activities associated with review of applications for COLs by the Office of New Reactors (NRO). This ISG supplements the guidance contained in Regulatory Guide (RG) 1.206, Revision 0, "Combined License Applications for Nuclear Power Plants (LWR Edition)." In additio

Langue originale de la source: Federal Register — Nuclear Regulatory CommissionOuvrir le communiqué original →

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Énergie et environnement · 25/08/2026

SMR, LLC; Palisades SMR, LLC; Pioneer Units 1 and 2; Environmental Assessment and Finding of No Significant Impact

The U.S. Nuclear Regulatory Commission (NRC) is issuing an environmental assessment (EA) and finding of no significant impact (FONSI) for an exemption requested by SMR, LLC on behalf of Palisades SMR, LLC (Palisades SMR), associated with certain excavation support activities for the proposed dual-unit SMR-300 plant, Pioneer Units 1 and 2, at the Palisades Energy Center in Covert, Michigan. Specifically, Palisades SMR is requesting an exemption, pursuant to NRC regulations, to allow for construction of support of excavation (SOE) walls during SMR-300 excavation and prior to issuance of a Limited Work Authorization (LWA), if approved. Based on the analyses presented in the EA, the NRC staff determined that there would be no significant environmental impacts associated with granting the requested exemption.

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Énergie et environnement · 21/08/2026

Draft Interim Staff Guidance: Evaluations of Risk Assessments for Risk-Informed Decision-Making for Regulatory Applications

The U.S. Nuclear Regulatory Commission (NRC) is soliciting public comment on its draft Interim Staff Guidance (ISG), OAR/DARP-ISG- 2026-XX, "Evaluations of Risk Assessments for Risk-Informed Decision- Making for Regulatory Applications." If finalized, this ISG will provide guidance to the staff for reviewing systematic risk assessment methods, including probabilistic risk assessments (PRAs) and other systematic risk evaluations (SREs). This ISG will supplement existing guidance to facilitate the staff's understanding of the uses of risk information in regulatory applications and application of principles of risk-informed decision-making.

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Énergie et environnement · 27/08/2026

NextEra Energy, Inc.; Dominion Energy, Inc.; Virginia Electric and Power Company; Dominion Energy Nuclear Connecticut; Dominion Energy South Carolina, Inc.; Surry Power Station, Unit Nos. 1 and 2; North Anna Power Station, Unit Nos. 1 and 2; Virgil C. Summer Nuclear Station, Unit 1; Millstone Power Station, Units 1, 2, & 3; North Anna Unit 3; North Anna Early Site Permit; and the Associated Independent Spent Fuel Storage Installations; Consideration of Approval of Transfer of Licenses

The U.S. Nuclear Regulatory Commission (NRC) received and is considering approval of an application filed by NextEra Energy, Inc. (NextEra Energy), Dominion Energy, Inc. (Dominion Energy), Virginia Electric and Power Company (VEPCO), Dominion Energy Nuclear Connecticut (DENC), and Dominion Energy South Carolina, Inc. (DESC) (collectively the Applicants) on July 15, 2026. The application seeks NRC approval of the indirect transfer of the facility operating licenses, materials licenses, and general licenses for Surry Power Station, Unit Nos. 1 and 2 (Surry); North Anna Power Station, Unit Nos. 1 and 2 (North Anna); Virgil C. Summer Nuclear Station, Unit 1 (V.C. Summer); and Millstone Power Station, Units 1, 2, & 3 (Millstone); as well as the combined license for North Anna Unit 3; and the North Anna Early Site Permit. The application contains sensitive unclassified non-safeguards information (SUNSI).

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Énergie et environnement · 26/08/2026

STP Nuclear Operating Company; South Texas Project, Unit 1; License Amendment Application

The U.S. Nuclear Regulatory Commission (NRC, the Commission) is considering issuance of an amendment to Renewed Facility Operating License No. NPF-76, issued to STP Nuclear Operating Company (STPNOC); Constellation South Texas, LLC; City Public Service Board of San Antonio; and City of Austin, Texas, for operation of South Texas Project, Unit 1 (STP). The proposed license amendment would, if granted, make a one-time exigent change to the technical specifications (TS) to extend the allowed outage time (AOT) for TS 3.7.1.7, "Main Feedwater System". This proposed amendment is being requested to facilitate repairs to the Unit 1 train D main feedwater isolation valve (MFIV). This proposed amendment is being requested under exigent circumstances pursuant to NRC regulations.

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Énergie et environnement · 24/08/2026

Arizona Public Service Company; Palo Verde Nuclear Generating Station, Units 1, 2, and 3; Indirect Transfer of Control of Licenses

The U.S. Nuclear Regulatory Commission (NRC, the Commission) is issuing an order approving the application dated April 24, 2026, filed by Arizona Public Service Company (APS), on behalf of Public Service Company of New Mexico (PNM), Troy ParentCo LLC (Troy ParentCo), and their corporate affiliates (together, Applicants). The application sought NRC consent to the indirect transfer of control of PNM's co- ownership of the Renewed Facility Operating License Nos. NPF-41, NPF- 51, and NPF-74 for the Palo Verde Nuclear Generating Station (Palo Verde), Units 1, 2, and 3, respectively, as well as the associated general license for the Palo Verde Independent Spent Fuel Storage Installation (ISFSI) (together, the facility). No physical changes or operational changes to the facility were proposed in the application.

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Énergie et environnement · 21/08/2026

Draft Regulatory Guide: Assessing Public Health Risk Associated With Chemical Hazards of Licensed Material

The U.S. Nuclear Regulatory Commission (NRC) is issuing for public comment a draft Regulatory Guide (DG), DG-1444, proposed Regulatory Guide (RG) 1.264, "Assessing Public Health Risk Associated with Chemical Hazards of Licensed Material." This DG describes a methodology that is acceptable to the staff of the NRC to meet regulatory requirements assessing public health risk associated with chemical hazards of licensed material.

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