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Énergie et environnement · 31/05/20171 min de lecture

Qualification of Safety-Related Vented Lead-Acid Storage Batteries for Nuclear Power Plants

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Résumé

The U.S. Nuclear Regulatory Commission (NRC) is issuing for public comment draft regulatory guide (DG), DG-1338, "Qualification of Safety-Related Vented Lead-Acid Storage Batteries for Nuclear Power Plants." DG-1338 is proposed revision 1 of regulatory guide (RG) 1.158, "Qualification of Safety-Related Lead Storage Batteries for Nuclear Power Plants" dated February 1989. DG-1338 endorses (with clarifying regulatory positions) the Institute of Electrical and Electronics Engineers (IEEE) Standard (Std.) 535-2013, "IEEE Standard for Qualification of Class 1E Vented Lead Acid Storage Batteries for Nuclear Power Generating Stations." IEEE 535-2013 contains procedures for qualifying batteries with duty cycles of less than 8 hours and batteries with duty cycles longer than 8 hours.

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

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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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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 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 · 11/09/2026

Virginia Electric and Power Company, (Doing Business as Dominion Energy Virginia); North Anna Site; Early Site Permit Renewal Application

The U.S. Nuclear Regulatory Commission (NRC or Commission) is considering an application for the renewal of Early Site Permit (ESP) No. ESP-003, which allows Virginia Electric and Power Company (doing business as Dominion Energy Virginia) to reference ESP-003 in an application for a construction permit (CP) or combined license (COL) at the North Anna ESP site during the period ESP-003 remains valid. The renewed permit, if approved, would extend the expiration date by an additional 20 years beyond the period specified in the current permit. The location for the North Anna ESP site is in Louisa County, Virginia, and the current ESP-003 expires on November 27, 2027. This notice provides the public an opportunity to request a hearing and petition for leave to intervene with respect to the renewal application.

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Énergie et environnement · 10/09/2026

In Situ Recovery Monitoring and Decommissioning Timeliness

The U.S. Nuclear Regulatory Commission (NRC) proposes to amend its regulations that govern the licensing of uranium mills and the disposition of tailings and waste that arise from the extraction and milling of uranium by issuing risk-informed requirements for groundwater protection at uranium in situ recovery (ISR) facilities. The NRC's current regulations are focused on conventional uranium milling and do not expressly address uranium extraction by the ISR process. Additionally, NRC proposes to amend its regulations that govern decommissioning timeliness for all licensees to provide additional flexibility for licensees to delay the initiation of decommissioning activities in situations where safety would not be impacted.

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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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