Document: NRC Regulatory Guide
Document ID: f0baf50b-5bb7-4783-b2f9-9586e09c97e1
Document Type: regulatory_guide
Title: Preparation of Environmental Reports for Nuclear Power Stations + HISTORY - HISTORY 02/2017 – DG-4026 , Proposed Revision 3 09/2014 – Periodic Review of Revision 2 – Revise (Rev. 3)
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML1611/ML16116A068.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-4.2
CFR Part: 
CFR Title: 

Content:
t. The applicant should identify all sources of data used in the need for power analysis in the ER and demonstrate how the data upon which the analysis relies was used. For the U.S. Nuclear Regulatory Commission (NRC) staff to rely on the analysis in the ER, the analysis should meet the following four acceptance criteria: • Systematic. An analysis that has been performed according to an objective, thorough, methodical, deliberate, and organized manner and that has been presented in a step-wise fashion leading to a logical conclusion supported by the data and reasoning provided. • Comprehensive. An analysis that is detailed, broad in scope, and includes a sufficient number of relevant factors so that the reviewer can reasonably conclude that the analysis may be considered “complete.” The depth of analysis and discussion for each factor is commensurate with its relative importance. DG-4026, Page 126 • Subject to confirmation. An analysis that is independently reviewed or confirmed by another entity (e.g., Federal or State reviews of integrated resource plans, State certificate of necessity proceedings, Federal Energy Regulatory Commission reviews, or independent system operator (ISO) or regional transmission organization (RTO) reports). • Responsive to forecasting uncertainty. A stable and robust methodology that is not unduly affected by the presence of outliers or other small departures from the modeled assumptions yet remains capable of characterizing the relative importance of uncertainty among input variables during sensitivity analyses. The applicant may use any data and supporting information it chooses, as long as it supports an analysis that meets the NRC’s four acceptance criteria. Typical sources include: • recent demand for power reports or analyses such as annual integrated resource plans, ISO or RTO power market analyses • state utility regulatory filings • other regional reports or resource assessments completed by an entity other