PRA Newly Developed Methods (NDM) Repository Wiki - Revision history

NDMAdmin at 17:26, 11 November 2021

2021-11-11T17:26:29Z

NDMAdmin at 17:21, 11 November 2021

2021-11-11T17:21:48Z

NDMAdmin at 17:19, 11 November 2021

2021-11-11T17:19:54Z

NDMAdmin at 17:00, 10 November 2021

2021-11-10T17:00:31Z

NDMAdmin at 16:48, 10 November 2021

2021-11-10T16:48:34Z

NDMAdmin at 21:59, 28 October 2021

2021-10-28T21:59:45Z

NDMAdmin at 16:17, 20 October 2021

2021-10-20T16:17:18Z

NDMAdmin at 16:13, 20 October 2021

2021-10-20T16:13:38Z

NDMAdmin at 16:12, 20 October 2021

2021-10-20T16:12:58Z

NDMAdmin at 16:09, 19 October 2021

2021-10-19T16:09:06Z

@@ Line 9: / Line 9: @@
 With the issuance of [https://www.nrc.gov/docs/ML2023/ML20238B871.pdf Regulatory Guide 1.200 Revision 3], the US Nuclear Regulatory Commission (NRC) endorsed the concept of a “Newly Developed Method (NDM)” for use in Probabilistic Risk Assessments (PRAs).  This Regulatory Guide also defined terms and references associated with determining what is an NDM and what options can be used to seek NRC acceptance or consensus that an NDM is acceptable for use in PRA.
-Figure 1 is a useful overview of the process for determining whether a change to the PRA is considered an “PRA upgrade” or “PRA maintenance.”  This Wiki shares information from previous evaluations within the industry specifically about the parts of this Figure highlighted in Yellow.  These are the questions related to whether a PRA method is considered an NDM, and whether an NDM Peer review has been conducted to determine the technical adequacy of the method for inclusion in risk applications as necessary.
+This Wiki shares information from previous evaluations within the industry specifically that have been provided to EPRI for inclusion in the Wiki.  These evaluations of interest are those related to whether a PRA method is considered an NDM, and whether an NDM Peer review has been conducted to determine the technical adequacy of the method for inclusion in risk applications as necessary.
 ==Purpose of NDM Repository Wiki==
@@ Line 20: / Line 16: @@
 *Is the method considered to be an NDM?  A summary level justification for this YES/NO determination should be provided.
 *If the method is determined to be an NDM, has a peer review of the NDM been conducted?  IF YES, then the public summary of the scope and findings of the NDM should be provided.
 ==Scope of NDM Repository Wiki==
@@ Line 29: / Line 24: @@
 *For questions on the scope or conclusions of a newly developed method peer review, please contact the peer review lead listed in the public summary of the NDM peer review of interest.
 The content of the Wiki is not intended to be all-inclusive.  It does not intend to capture and document all accepted state-of-practice methods.  Instead, the content includes the information provided to EPRI by industry stakeholders about which PRA methods have been reviewed and considered as potential NDMs upon the release of [https://www.nrc.gov/docs/ML2023/ML20238B871.pdf NRC Regulatory Guide 1.200 Revision 3].  Also, the content is organized by topical areas, e.g., Level 1 General PRA Methods, External Flooding PRA Methods, and others. These sections will be populated with NDMs as they are determined by industry organizations. Unpopulated sections will serve as placeholders until NDMs for those sections are identified and provided to EPRI.
 ==EPRI Materials Referenced in NDM Repository Wiki==
 Any published EPRI results (reports, software products, etc.) referenced in the Wiki are fully documented by EPRI and accessible by EPRI members at [www.epri.com www.epri.com].  As a global, independent, scientific research organizations, EPRI supports the technical basis of all EPRI research which may be considered a PRA method.  However, as a non-profit, EPRI does not engage directly in determining steps are required for regulatory acceptance of PRA methods in individual countries around the world.  EPRI supports its members in understanding and applying the methods correctly and consistent with their technical bases.  Thus, decisions on whether an EPRI method is an NDM are made by the users of the methods.  Also, conduct of NDM peer reviews are organized by the users of the methods, though EPRI will support answering technical questions on the method, its development and basis as part of any conducted peer reviews on EPRI methods.
 ==Definitions==
@@ Line 50: / Line 43: @@
 *State-of–Practice: Practices that are widely accepted by and implemented throughout the commercial nuclear power industry, have been shown to be technically acceptable in well-documented analyses or engineering assessments that are publicly available, and are accepted by the NRC.
 *Consensus Method/Model: In the context of risk-informed regulatory decisions, a method or model approach that the NRC has used or accepted for the specific risk-informed application for which it is proposed. A consensus method or model may also have a publicly available, published basis and may have been peer reviewed and widely adopted by an appropriate stakeholder group.
 ==Adding Newly Developed Methods to NDM Repository Wiki==
@@ Line 81: / Line 73: @@
 *[https://www.nrc.gov/docs/ML2021/ML20213C660.pdf PWROG-19027-NP, Revision 2] - Pressurized Water Reactor Owners Group (PWROG), Report PWROG-19027-NP, Revision 2, “Newly Developed Method Requirements and Peer Review,” Cranberry Township, PA, July 2020. (ADAMS Accession No. ML20213C660)
 *[https://www.nrc.gov/docs/ML1924/ML19241A615.pdf NEI 17-07 Rev 2] - Nuclear Energy Institute (NEI), NEI 17-07, Revision 2, “Performance of PRA Peer Reviews Using the ASME/ANS PRA Standard,” Washington, DC, August 2019. (ADAMS Accession No. ML19241A615)
 ==Contacts for Additional Information==
 *EPRI – For questions on EPRI research results or other EPRI questions, contact [mailto:fferrante@epri.com Fernando Ferrante].
 *NEI – For questions on NDM process or coordination, contact [mailto:vka@nei.org Victoria Anderson].
 ==NDMs by Topical Areas==

@@ Line 9: / Line 9: @@
 With the issuance of [https://www.nrc.gov/docs/ML2023/ML20238B871.pdf Regulatory Guide 1.200 Revision 3], the US Nuclear Regulatory Commission (NRC) endorsed the concept of a “Newly Developed Method (NDM)” for use in Probabilistic Risk Assessments (PRAs).  This Regulatory Guide also defined terms and references associated with determining what is an NDM and what options can be used to seek NRC acceptance or consensus that an NDM is acceptable for use in PRA.
-This Wiki shares information from previous evaluations within the industry specifically that have been provided to EPRI for inclusion in the Wiki.  These evaluations of interest are those related to whether a PRA method is considered an NDM, and whether an NDM Peer review has been conducted to determine the technical adequacy of the method for inclusion in risk applications as necessary.
+Figure 1 is a useful overview of the process for determining whether a change to the PRA is considered an “PRA upgrade” or “PRA maintenance.”  This Wiki shares information from previous evaluations within the industry specifically about the parts of this Figure highlighted in Yellow.  These are the questions related to whether a PRA method is considered an NDM, and whether an NDM Peer review has been conducted to determine the technical adequacy of the method for inclusion in risk applications as necessary.
 [[File:1-1.jpeg|thumb|none|800px| Figure 1 - Adapted from Figure 3-1 of PWROG-19027-NP, Revision 2.
@@ Line 20: / Line 20: @@
 *Is the method considered to be an NDM?  A summary level justification for this YES/NO determination should be provided.
 *If the method is determined to be an NDM, has a peer review of the NDM been conducted?  IF YES, then the public summary of the scope and findings of the NDM should be provided.
 ==Scope of NDM Repository Wiki==
@@ Line 28: / Line 29: @@
 *For questions on the scope or conclusions of a newly developed method peer review, please contact the peer review lead listed in the public summary of the NDM peer review of interest.
 The content of the Wiki is not intended to be all-inclusive.  It does not intend to capture and document all accepted state-of-practice methods.  Instead, the content includes the information provided to EPRI by industry stakeholders about which PRA methods have been reviewed and considered as potential NDMs upon the release of [https://www.nrc.gov/docs/ML2023/ML20238B871.pdf NRC Regulatory Guide 1.200 Revision 3].  Also, the content is organized by topical areas, e.g., Level 1 General PRA Methods, External Flooding PRA Methods, and others. These sections will be populated with NDMs as they are determined by industry organizations. Unpopulated sections will serve as placeholders until NDMs for those sections are identified and provided to EPRI.
 ==EPRI Materials Referenced in NDM Repository Wiki==
 Any published EPRI results (reports, software products, etc.) referenced in the Wiki are fully documented by EPRI and accessible by EPRI members at [www.epri.com www.epri.com].  As a global, independent, scientific research organizations, EPRI supports the technical basis of all EPRI research which may be considered a PRA method.  However, as a non-profit, EPRI does not engage directly in determining steps are required for regulatory acceptance of PRA methods in individual countries around the world.  EPRI supports its members in understanding and applying the methods correctly and consistent with their technical bases.  Thus, decisions on whether an EPRI method is an NDM are made by the users of the methods.  Also, conduct of NDM peer reviews are organized by the users of the methods, though EPRI will support answering technical questions on the method, its development and basis as part of any conducted peer reviews on EPRI methods.
 ==Definitions==
@@ Line 47: / Line 50: @@
 *State-of–Practice: Practices that are widely accepted by and implemented throughout the commercial nuclear power industry, have been shown to be technically acceptable in well-documented analyses or engineering assessments that are publicly available, and are accepted by the NRC.
 *Consensus Method/Model: In the context of risk-informed regulatory decisions, a method or model approach that the NRC has used or accepted for the specific risk-informed application for which it is proposed. A consensus method or model may also have a publicly available, published basis and may have been peer reviewed and widely adopted by an appropriate stakeholder group.
 ==Adding Newly Developed Methods to NDM Repository Wiki==
@@ Line 77: / Line 81: @@
 *[https://www.nrc.gov/docs/ML2021/ML20213C660.pdf PWROG-19027-NP, Revision 2] - Pressurized Water Reactor Owners Group (PWROG), Report PWROG-19027-NP, Revision 2, “Newly Developed Method Requirements and Peer Review,” Cranberry Township, PA, July 2020. (ADAMS Accession No. ML20213C660)
 *[https://www.nrc.gov/docs/ML1924/ML19241A615.pdf NEI 17-07 Rev 2] - Nuclear Energy Institute (NEI), NEI 17-07, Revision 2, “Performance of PRA Peer Reviews Using the ASME/ANS PRA Standard,” Washington, DC, August 2019. (ADAMS Accession No. ML19241A615)
 ==Contacts for Additional Information==
 *EPRI – For questions on EPRI research results or other EPRI questions, contact [mailto:fferrante@epri.com Fernando Ferrante].
 *NEI – For questions on NDM process or coordination, contact [mailto:vka@nei.org Victoria Anderson].
 ==NDMs by Topical Areas==

← Older revision		Revision as of 17:19, 11 November 2021
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	This Wiki shares information from previous evaluations within the industry specifically that have been provided to EPRI for inclusion in the Wiki. These evaluations of interest are those related to whether a PRA method is considered an NDM, and whether an NDM Peer review has been conducted to determine the technical adequacy of the method for inclusion in risk applications as necessary.		This Wiki shares information from previous evaluations within the industry specifically that have been provided to EPRI for inclusion in the Wiki. These evaluations of interest are those related to whether a PRA method is considered an NDM, and whether an NDM Peer review has been conducted to determine the technical adequacy of the method for inclusion in risk applications as necessary.
		+
		+	[[File:1-1.jpeg\|thumb\|none\|800px\| Figure 1 - Adapted from Figure 3-1 of PWROG-19027-NP, Revision 2.
		+	Overview of the process for determining whether a change to the PRA is considered an “PRA upgrade” or “PRA maintenance.”
		+	The portions highlighted in yellow are the focus of the content in this Wiki and are the questions related to whether a PRA method is considered an NDM.]]

	==Purpose of NDM Repository Wiki==		==Purpose of NDM Repository Wiki==

← Older revision		Revision as of 17:00, 10 November 2021
Line 10:		Line 10:

	This Wiki shares information from previous evaluations within the industry specifically that have been provided to EPRI for inclusion in the Wiki. These evaluations of interest are those related to whether a PRA method is considered an NDM, and whether an NDM Peer review has been conducted to determine the technical adequacy of the method for inclusion in risk applications as necessary.		This Wiki shares information from previous evaluations within the industry specifically that have been provided to EPRI for inclusion in the Wiki. These evaluations of interest are those related to whether a PRA method is considered an NDM, and whether an NDM Peer review has been conducted to determine the technical adequacy of the method for inclusion in risk applications as necessary.
−

	==Purpose of NDM Repository Wiki==		==Purpose of NDM Repository Wiki==

@@ Line 9: / Line 9: @@
 With the issuance of [https://www.nrc.gov/docs/ML2023/ML20238B871.pdf Regulatory Guide 1.200 Revision 3], the US Nuclear Regulatory Commission (NRC) endorsed the concept of a “Newly Developed Method (NDM)” for use in Probabilistic Risk Assessments (PRAs).  This Regulatory Guide also defined terms and references associated with determining what is an NDM and what options can be used to seek NRC acceptance or consensus that an NDM is acceptable for use in PRA.
-Figure 1 is a useful overview of the process for determining whether a change to the PRA is considered an “PRA upgrade” or “PRA maintenance.”  This Wiki shares information from previous evaluations within the industry specifically about the parts of this Figure highlighted in Yellow.  These are the questions related to whether a PRA method is considered an NDM, and whether an NDM Peer review has been conducted to determine the technical adequacy of the method for inclusion in risk applications as necessary.
+This Wiki shares information from previous evaluations within the industry specifically that have been provided to EPRI for inclusion in the Wiki.  These evaluations of interest are those related to whether a PRA method is considered an NDM, and whether an NDM Peer review has been conducted to determine the technical adequacy of the method for inclusion in risk applications as necessary.
 ==Purpose of NDM Repository Wiki==

@@ Line 16: / Line 16: @@
 ==Purpose of NDM Repository Wiki==
-Because EPRI members and other stakeholders will benefit from a repository of methods that have been considered previously be others in the context of whether they are an NDM, EPRI has created this [https://pra-ndm.epri.com PRA Newly Developed Methods Wiki] to be a publicly available reference to meet this need.  The repository is organized into broad categories and contains information provided to EPRI by stakeholder (utilities, vendors, NEI, others) about the following:
+Because EPRI members and other stakeholders will benefit from a repository of methods that have been considered previously by others in the context of whether they are an NDM, EPRI has created this [https://pra-ndm.epri.com PRA Newly Developed Methods Wiki] to be a publicly available reference to meet this need.  The repository is organized into broad categories and contains information provided to EPRI by stakeholders (utilities, vendors, NEI, others) about the following:
 *Has the method been evaluated previously to determine whether it is an NDM?
 *Is the method considered to be an NDM?  A summary level justification for this YES/NO determination should be provided.
@@ Line 23: / Line 23: @@
 ==Scope of NDM Repository Wiki==
-Information provided in this Wiki is provided to EPRI by various stakeholders for inclusion in this repository.
+Information in this Wiki is provided to EPRI by various stakeholders for inclusion in this repository.
-Inclusion of the method in this page does not imply that the method has been vetted or endorsed by EPRI, not that EPRI has evaluated and agreed with the decision that a method is or is not a new method, or with the conclusions of any NDM peer reviews.  EPRI’s role is to organize the information provided by others into a publicly accessible repository for the benefit of members, regulators, and other stakeholders around the world.
+Inclusion of the method in this page does not imply that the method has been vetted or endorsed by EPRI, nor that EPRI has evaluated and agreed with the decision that a method is or is not a new method, nor with the conclusions of any NDM peer reviews.  EPRI’s role is to organize the information provided by others into a publicly accessible repository for the benefit of members, regulators, and other stakeholders around the world.
 *For questions or additional information on the methods contained in the repository, contact the developer of the method directly.
-*For questions about the determination that a method is or is not a newly developed method, contact the person listed as the contact person on the summary justification for that determination.
+*For questions about the determination that a method is or is not a newly developed method, contact the person listed on the summary justification for that determination.
 *For questions on the scope or conclusions of a newly developed method peer review, please contact the peer review lead listed in the public summary of the NDM peer review of interest.
-The content of the Wiki is not intended to be all-inclusive.  It does not intend to capture and document all accepted state-of-practice methods.  Instead, the content includes the information provided to EPRI by industry stakeholders about which methods PRA have been reviewed and considered as potential NDMs upon the release of [https://www.nrc.gov/docs/ML2023/ML20238B871.pdf NRC Regulatory Guide 1.200 Revision 3].  Also, the content is organized by topical areas, e.g., Level 1 General PRA Methods, External Flooding PRA Methods, and others. These sections will be populated with NDMs as they are determined by industry organizations. Unpopulated sections will serve as placeholders until NDMs for those sections are identified and provided to EPRI.
+The content of the Wiki is not intended to be all-inclusive.  It does not intend to capture and document all accepted state-of-practice methods.  Instead, the content includes the information provided to EPRI by industry stakeholders about which PRA methods have been reviewed and considered as potential NDMs upon the release of [https://www.nrc.gov/docs/ML2023/ML20238B871.pdf NRC Regulatory Guide 1.200 Revision 3].  Also, the content is organized by topical areas, e.g., Level 1 General PRA Methods, External Flooding PRA Methods, and others. These sections will be populated with NDMs as they are determined by industry organizations. Unpopulated sections will serve as placeholders until NDMs for those sections are identified and provided to EPRI.
@@ Line 74: / Line 74: @@
 *Characterization of the NDM summary of the peer review findings regarding the adequacy of the NDM
 *Listing of the associated ASME/ANS PRA Standard Supporting Requirements (SRs) along with the assessment findings and associated basis
-*Listing of any Facts and Observations (F&Os) from the NDM peer review along with the status of the F&Ss (open/close) and the basis for closure if they are closed.
+*Listing of any Facts and Observations (F&Os) from the NDM peer review along with the status of the F&Os (open/close) and the basis for closure if they are closed.
 *Listing of SRs that should be peer reviewed in a peer review for a stakeholder’s application of the method

@@ Line 1: / Line 1: @@
 Product Information
@@ Line 7: / Line 12: @@
 ==Overview of NDM Repository Wiki==
-With the issuance of [https://www.nrc.gov/docs/ML2023/ML20238B871.pdf Regulatory Guide 1.200 Revision 3], the US Nuclear Regulatory Commission (NRC) endorsed the concept of a “Newly Developed Method (NDM)” for use in Probabilistic Risk Assessments (PRAs).  [https://www.nrc.gov/docs/ML2023/ML20238B871.pdf NRC Regulatory Guide 1.200 Revision 3] also defined terms and references associated with determining what is an NDM and what options can be used to seek NRC acceptance or consensus that an NDM is acceptable for use in PRA.
+With the issuance of [https://www.nrc.gov/docs/ML2023/ML20238B871.pdf Regulatory Guide 1.200 Revision 3], the US Nuclear Regulatory Commission (NRC) endorsed the concept of a “Newly Developed Method (NDM)” for use in Probabilistic Risk Assessments (PRAs).  This Regulatory Guide also defined terms and references associated with determining what is an NDM and what options can be used to seek NRC acceptance or consensus that an NDM is acceptable for use in PRA.
 Figure 1 is a useful overview of the process for determining whether a change to the PRA is considered an “PRA upgrade” or “PRA maintenance.”  This Wiki shares information from previous evaluations within the industry specifically about the parts of this Figure highlighted in Yellow.  These are the questions related to whether a PRA method is considered an NDM, and whether an NDM Peer review has been conducted to determine the technical adequacy of the method for inclusion in risk applications as necessary.
@@ Line 32: / Line 37: @@
 ==EPRI Materials Referenced in NDM Repository Wiki==
-Any published EPRI results (reports, software products, etc.) referenced in the Wiki are fully documented by EPRI and accessible by EPRI members on [www.epri.com www.epri.com].  As a global, independent, scientific research organizations, EPRI supports the technical basis of all EPRI research which may be considered a PRA method.  However, as a non-profit, EPRI does not engage directly in determining steps are required for regulatory acceptance of PRA methods in individual countries around the world.  EPRI supports its members in understanding and applying the methods correctly and consistent with their technical bases.  Thus, decisions on whether an EPRI method is an NDM are made by the users of the methods.  Also, conduct of NDM peer reviews are organized by the users of the methods, though EPRI will support answering technical questions on the method, its development and basis as part of any conducted peer reviews on EPRI methods.
+Any published EPRI results (reports, software products, etc.) referenced in the Wiki are fully documented by EPRI and accessible by EPRI members at [www.epri.com www.epri.com].  As a global, independent, scientific research organizations, EPRI supports the technical basis of all EPRI research which may be considered a PRA method.  However, as a non-profit, EPRI does not engage directly in determining steps are required for regulatory acceptance of PRA methods in individual countries around the world.  EPRI supports its members in understanding and applying the methods correctly and consistent with their technical bases.  Thus, decisions on whether an EPRI method is an NDM are made by the users of the methods.  Also, conduct of NDM peer reviews are organized by the users of the methods, though EPRI will support answering technical questions on the method, its development and basis as part of any conducted peer reviews on EPRI methods.
@@ Line 39: / Line 44: @@
 ===Definition of a Newly Developed Method===
-*Newly Developed Method A PRA method that has either been developed separately from a state-of practice method or is one that involves a fundamental change to a state-of practice method. An NDM is not a state-of practice or a consensus method.
+*Newly Developed Method: A PRA method that has either been developed separately from a state-of practice method or is one that involves a fundamental change to a state-of practice method. An NDM is not a state-of practice or a consensus method.
 ===Supporting Definitions===
@@ Line 49: / Line 54: @@
 *PRA Maintenance: A change in the PRA that does not meet the definition of PRA upgrade.
 *State-of–Practice: Practices that are widely accepted by and implemented throughout the commercial nuclear power industry, have been shown to be technically acceptable in well-documented analyses or engineering assessments that are publicly available, and are accepted by the NRC.
-*Consensus Method/Model In the context of risk-informed regulatory decisions, a method or model approach that the NRC has used or accepted for the specific risk-informed application for which it is proposed. A consensus method or model may also have a publicly available, published basis and may have been peer reviewed and widely adopted by an appropriate stakeholder group.
+*Consensus Method/Model: In the context of risk-informed regulatory decisions, a method or model approach that the NRC has used or accepted for the specific risk-informed application for which it is proposed. A consensus method or model may also have a publicly available, published basis and may have been peer reviewed and widely adopted by an appropriate stakeholder group.
 ==Adding Newly Developed Methods to NDM Repository Wiki==
-Stakeholders can provide the following information to EPRI (or NEI) to be included in future updates tot this Wiki.
+Stakeholders can provide the following information to EPRI (or NEI) to be included in future updates to this Wiki.
 ===Determination that a PRA Method is or is not an NDM===