Power Uprates - Revision history

Admin at 16:22, 17 September 2026

2026-09-17T16:22:52Z

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2026-09-17T16:08:12Z

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Admin: /* frameless|50 px|text-center Industry Documents for Power Uprates */

2026-09-17T15:46:57Z

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Admin at 15:45, 17 September 2026

2026-09-17T15:45:42Z

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Admin at 15:42, 17 September 2026

2026-09-17T15:42:25Z

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Admin at 15:39, 17 September 2026

2026-09-17T15:39:10Z

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Monica Hurley: Revision 0 Reviewed by Colton Smith

2026-08-07T15:34:42Z

Revision 0 Reviewed by Colton Smith

New page

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<div style="border:1px solid #d0d0d0; border-radius:8px; overflow:hidden; background:white;">

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MUR
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<div style="padding:15px;">
<div style="text-align:center; font-size:24px; font-weight:bold;">≤ 2%</div>

'''Measurement Uncertainty Recapture'''

• Improved measurement accuracy<br>
• Reduced uncertainty margins<br>
• Minimal plant modifications
</div>

</div>

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<div style="background:#0078D4; color:white; text-align:center; padding:12px; font-size:18px; font-weight:bold;">
SPU
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<div style="padding:15px;">
<div style="text-align:center; font-size:24px; font-weight:bold;">2 - 7%</div>

'''Stretch Power Uprate'''

• Uses existing design margin<br>
• Limited modifications<br>
• Instrumentation adjustments
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</div>

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<div style="background:#0F6CBD; color:white; text-align:center; padding:12px; font-size:18px; font-weight:bold;">
EPU
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<div style="padding:15px;">
<div style="text-align:center; font-size:24px; font-weight:bold;">> 7%</div>

'''Extended Power Uprate'''

• Significant power increase<br>
• Major equipment modifications<br>
• Balance-of-plant upgrades
</div>

</div>
|}

__NOTOC__
== Quick Links ==

{| style="width:100%; text-align:center;"
|-
|
[[File:PUR Database Icon.png|60px|link=https://ppudb.epri.com]]

'''Power Plant Uprate Database (PPUDB)'''

|
[[File:PUR Document Icon.png|60px|link=#Industry_Documents_for_Power_Uprates]]

'''Research'''

|
[[File:PUR Calendar Icon.png|60px|link=#Future_Meetings]]

'''Meetings'''

|
[[File:PUR Meetings Icon.png|60px|link=#Past_Workshop_Materials_Must_be_logged_in_to_view!]]

'''Workshop Material'''

|}

=[[File:PUR Calendar Icon.png|frameless|50 px|text-center]]Future Meetings=
{| class="wikitable"
| style="background:#fff4cc;" |
'''📅 Upcoming Activities'''

'''TAG Meeting'''
First Wednesday of every month
1:00 PM Eastern

'''2026 Power Uprate Workshop'''
9-11 September 2026
Charlotte, North Carolina

'''Need an invite?'''
[mailto:mhurley@epri.com Contact PUR PM]
|}

=[[File:PUR Document Icon.png|frameless|50 px|text-center]] Industry Documents for Power Uprates=
<div class="mw-collapsible mw-collapsed">
{| class="wikitable mw-collapsible mw-collapsed" style="vertical-align:bottom;"
|+{{nowrap|EPRI Research}}
|-
! Product ID
! Title
! Description
|-
| [https://www.epri.com/research/products/000000003002025839 3002025839]
| Power Uprate Supplmental Project Notice
| Overview of what to expect from the Supplemental
|-
| [https://www.epri.com/research/products/000000003002026402 3002026402]
| Facilitating Power Uprates at Nuclear Power Plants: Feasibility Study Guideline
| An enhanced and updated methodology for performing the feasibility study of nuclear power plant power uprates.
|-
| [https://www.epri.com/research/products/000000003002035186 3002035186]
| style="vertical-align:middle;" | Power Uprate Margin Management Assessment (PUMMA) Tool v1.0
| An Excel-based tool for users to provide structured inputs on qualitative assessments of margin before and after a power uprate
|-
| [https://www.epri.com/research/products/000000003002030461 3002030461]
| style="vertical-align:middle;" | EPRI Power Plant Uprate Database (PPUDB) v1.0
| OE database of Power Uprates. Contains over 500 OE and we encourage everyone to add their experiences to benefit others.
|-
| [https://www.epri.com/research/products/000000003002035182 3002035182]
| style="vertical-align:middle;" | Assessment of the Status of International Extended Power Uprates
| An overview of what is happening for power uprates outside of the United States
|}

{| class="wikitable mw-collapsible mw-collapsed" style="vertical-align:middle;"
|+ {{nowrap| NRC approved EPRI Topicals}}
|- style="vertical-align:bottom;"
! Product ID
! Title
! Description
|- style="vertical-align:bottom;"
| [https://www.epri.com/research/products/000000003002018337 3002018337]
| style="vertical-align:middle;" | Use of Data Validation and Reconciliation Methods for Measurement Uncertainty Recapture: Topical Report, Revision 0-A
| Establishes the technical basis for DVR for MUR uprates and perform related evaluations to substantiate the uncertainty claims of the DVR process.
|-
| style="vertical-align:bottom;" | [https://www.epri.com/research/products/000000003002035151 3002035151]
| Loss-of-Coolant-Accident-Induced Fuel Fragmentation, Relocation and Dispersal with Leak-Before-Break Credit: Alternative Licensing Strategy (3002028673-A)
| rowspan="4" | Provides a pathway for an individual plant licensee to request license amendments to address LOCA-induced FFRD in high burnup fuel. The proposed methodology supports the transition for the bulk of the PWR fleet to higher burnup and also provides a pathway to apply this approach to PWRs that are not specifically evaluated in this report.
|-
| style="vertical-align:bottom;" | [https://www.epri.com/research/products/000000003002035149 3002035149]
| LOCA Analysis of Fuel Fragmentation, Relocation, and Dispersal for Westinghouse 2-Loop, 3-Loop, and 4-Loop Plants: Non-Proprietary-A
|-
| style="vertical-align:bottom;" | [https://www.epri.com/research/products/000000003002035150 3002035150]
| LOCA Analysis of Fuel Fragmentation, Relocation, and Dispersal for Westinghouse 2-Loop, 3-Loop, and 4-Loop Plants: Proprietary-A
|-
| style="vertical-align:bottom;" | [https://www.epri.com/research/products/000000003002036275 3002036275]
| Materials Reliability Program: xLPR Estimation of PWR Loss-of-Coolant Accident Frequencies (MRP-480-A)
|}

{| class="wikitable mw-collapsible mw-collapsed" style="vertical-align:bottom;"
|+ {{nowrap| Other Related EPRI Research}}
|-
! Product ID
! Title
! Description
|-
| [https://www.epri.com/research/products/000000003002013197 3002013197]
| style="vertical-align:middle;" | Guidance for Implementing a Data Validation and Reconciliation Program at Nuclear Power Plants
| Provides research and guidance for a plant to evaluate and implement DVR Methods contained in the German standard, VDI-2048, to monitor core thermal power
|-
| [https://www.epri.com/research/products/000000003002018588 3002018588]
| style="vertical-align:middle;" | Improving Heat Rate Calculations
| Explores the use of DVR for heat rate monitoring with a focus on the reduction of heat rate uncertainties that DVR may permit
|-
| [https://www.epri.com/research/products/000000003002032144 3002032144]
| style="vertical-align:middle;" | Steam Generator Management Program: Calculating Primary-to-Secondary Leakage After an Accident Condition: Upper Bound Faulted Leak Rate as a Function of Operational Leakage
| Presents the results of an investigation using an advanced probabilistic model to assess anticipated leakage under a range of accident conditions if the accident condition was entered while a measurable operational primary-to-secondary leakage was occurring
|}

{| class="wikitable mw-collapsible mw-collapsed"
|+ {{nowrap| Other Industry Documents}}
|- style="vertical-align:bottom;"
! Report Number
! Title
! Description
|- style="vertical-align:bottom;"
| style="vertical-align:middle;" | [https://www.nei.org/master-document-folder/technical-reports/nei-08-10-roadmap-for-power-uprate-program-develo NEI 08-10]
| Roadmap for Power Uprate Program Development and Implementation, Rev 0, July 2009
| Provides guidance intended to promote excellence in executing power uprates at commercial operating nuclear power stations
|- style="vertical-align:bottom;"
| style="vertical-align:middle;" | [https://www.iaea.org/publications/8433/power-uprate-in-nuclear-power-plants-guidelines-and-experience IAEA NP-T-3.9]
| Power Uprate in Nuclear Power Plants: Guidelines and Experience
| Options for uprating the power level and information on current trends, licensing aspects, monitoring, lessons learned from many countries and verification technology.
|- style="vertical-align:bottom;"
| style="vertical-align:middle;" | INPO 09-003
| Systematic Management of Design and Operating Margins
| Provides guidance for member utilities in identifying, evaluating, prioritizing, and resolving margin concerns
|- style="vertical-align:bottom;"
| INPO 09-005
| Power Uprate Implementation Strategies – A Leadership Perspective
| provides implementation insights and practical examples of how stations have achieved excellence during the development and installation of power uprate projects
|- style="vertical-align:bottom;"
| GE NEDO-32424 <br /> (ML102220442)
| Generic Guidelines for General Electric Boiling Water Reactor Extended Power Uprate
| Presents the generic criteria, methodology and scope of evaluation required to provide sufficient information for use by the Nuclear Regulatory Commission (NRC) to grant approval to anticipated specific applications for increases in the authorized thermal power level (power uprate) of GE Boiling Water Reactors (BWRs). This document covers uprates up to nominally 20% of the original licensed thermal power
|- style="vertical-align:bottom;"
| style="vertical-align:middle;" | GE NEDC-32523P-A
| Generic Evaluations of General Electric Boiling Water Reactor Extended Power Uprate
| Contains generic bounding analyses and equipment evaluations in support ofextended power uprate (up to 20 percent increased core thermal power) for boiling water reactors (BWRs)
|- style="vertical-align:bottom;"
| style="vertical-align:middle;" | GE NEDC- 33004P-A
| Constant Pressure Power Uprate Licensing Topical Report
| An approach to uprate reactor power that maintains the current plant reactor dome pressure
|-
| WEC NS-ES-0020
| style="vertical-align:bottom;" | Uprating Programs
| style="vertical-align:bottom;" | Westinghouse's 3-Phase process for Power Uprates
|- style="vertical-align:bottom;"
| US NRC RS-001
| Review Standard for Extended Power Uprates,
| Provides guidance for the Nuclear Regulatory Commission (NRC) staff’s review of extended power uprate (EPU) applications to enhance consistency, quality, and completeness of reviews
|}
</div>

=[[File:PUR Meetings Icon.png|frameless|50 px|text-center]]Past Workshop Materials<span style="color:red; font-weight:bold”> Must be logged in to view! </span>=
<div class="mw-collapsible mw-collapsed">
{| class="wikitable"
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|[https://www.epri.com/research/programs/111344/events/24f0b83a-17c5-4803-93b2-1cae9b8d9f0a 2025 Workshop]
|}
</div>