Long Term Operations · Evaluate primary, expansion, and existing components examination...

© 2016 Electric Power Research Institute, Inc. All rights reserved.

Mike Gallagher

Exelon, VP License Renewal

Sherry Bernhoft

EPRI, Sr. Program Manager

LTO Integration Committee Meeting

August 29, 2016

Long Term Operations

Introduction

Date: August 12, 2016 R.2

2


Emergency Exits: Roosevelt BR (Mezzanine Level)

NOTE: ALL

RED DOORSARE EMERGENCY

EXIT DOORS

ROOSEVELT BALLROOM

3


Get Connected…

4


Meeting Purpose

EPRI LTO program created in 2010 to accelerate and coordinate

cross-sector research for safe, reliable and economic long-term

operations

Three major roles:

– Technical basis for aging management

– Opportunities for modernization and efficiency enhancements

– Provide technology transfer

US – participation in NEI tasks force and working groups, and

lead plant demonstration

International – participation with the IAEA and workshops at

host sites

LTO Integration Committee

Provides strategic input for research direction and

priorities

5


Long-Term Operations – Global Need

In the U.S.

License renewal – 40 to 60 years

Second license renewal – 60 to 80 years

As of October 2015:

250 NPPs > 30 years of operations

68 NPPs > 40 years of operations

Without SLR the U.S. will lose 30,000 MWs between 2029 and 2035.

Total Number of Reactors: 438Number of Reactors

Num

be

r o

f R

ea

cto

rs

35

30

25

20

15

10

5

0

If all existing nuclear

plants operate for 60

years.

If all existing nuclear

plants operate for 80

years.

Source: Capacity – Energy Information Administration; License Expiration –

Nuclear Regulatory Commission

Projected U.S. Nuclear Power Capacity(Megawatts)

6


Agenda

Long Term Operations Integration Committee

Meeting Holder: Sherry Bernhoft, ([email protected])

Room Location: Roosevelt Ballroom, Salon IV (Mezzanine Level)

Monday, August 29, 2016

Time Topic Lead

1:00 pm Welcome and Introductions M. Gallagher, Exelon

1:15 pmNEI Update and Second License Renewal (SLR) Activities

Status UpdateJ. Hanson, NEI

1:45 pmSLR Lead Plant Activities

Status Update Topics related to research needs and support

P. Aitken, Dominion

2:30 pmResearch Focus Area (RFA) & LTO Project Plans for 2017 & 2018

Results of member survey

Two year look ahead at project plans for the LTO program

S. Bernhoft, EPRI

3:00 pm Afternoon Break All

3:30 pmLTO Issue Tracking Table Review

Member input on issue tracking table review and updateR. Tilley, EPRI

4:30 pm Action Items and Adjourn

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Antitrust Guidelines for EPRI

Meetings and ConferencesThe antitrust laws and other business laws apply to EPRI, its Members, participants, funders, and advisers;

violations can lead to civil and criminal liability. EPRI is committed to both full compliance and maintaining the

highest ethical standards in all of our operations and activities.

These guidelines apply to all occasions: before, during, and after EPRI meetings, including in the hallways,

over lunch, during breaks and at dinner.

…is to conduct research and development relating to the generation, delivery

and use of electricity for the benefit of the public. EPRI advisory meetings are

conducted to further that purpose.

…is to follow the meeting agenda and provide advice on EPRI’s R&D program

and how to make EPRI results most useful. Consult with your company counsel

if at any time you believe discussions are touching on sensitive antitrust subjects

such as pricing, bids, allocation of customers or territories, boycotts, tying

arrangements and the like.

EPRI’S PRIMARY

PURPOSE

YOUR ROLE AT EPRI

ADVISORY MEETINGS

8


Together…Shaping the Future of Electricity

EPRI Nuclear Power Council LTO IC Meeting

SLR UpdateAugust 29, 2016

New Orleans, LA

Jerud HansonNuclear Energy Institute

1

Overview

• Site Visits

• SLR Activities

• NEI Survey Results

• DLR Staffing & Support

• Looking ahead

2

2016 SLR Site Visits

• 2016- Westinghouse – generic SLR-focused overview and tour

of facilities- PNNL – Cable-focused discussions and tour of facilities- AREVA – Oct. 12-13

• Focus on reactor vessel

• 2017- Request for concrete-focused discussions

3

SLR Activities

• NRC close to completing disposition of stakeholder feedback on Draft SLR GALL Report and SRP

• NRC and industry lead SLR plants focused on increasing efficiencies in LR application process for SLR

• NEI/industry team conducting rewrite of industry guidance for submitting LR application

4

NRC Public Meetings

• Last meeting on July 28th focused on follow-up mechanical discussion

• Some topics required more focused discussion and escalation was considered- Ultimately resolved with no escalation

• AMP XI.M11B, Cracking of Nickel-Alloy Components and Loss of Material Due to Boric Acid-Induced Corrosion

• AMP XI.M31, Reactor Vessel Material Surveillance

5

Upcoming Meetings

• September 15th public conference call

- Update on SLR issues

• October 12-13 AREVA visit

• October SLRA Optimization public meeting

• 4th quarterly task force meeting

- TBD

• ACRS meeting – March, 2017

6

NRC Drop-In

• August 23rd NEI/industry drop-in with Bill Dean

- Technical issues were impetus of scheduling a drop-in; some issues were resolved prior

- Discussion on importance of maintaining current staffing levels in DLR following reorganization

7

SLR Applications per Year

0

1

2

3

4

2018 2020 2022 2024 2026 2028 2030 Gap 2042 2044 2046

SLR Support & Interaction

• Success of SLR is falling on lead plants

- Peach Bottom and Surry

• Significant progress has been made in SLR through our participating utilities and partners

- Exelon, Dominion, Entergy, EPRI, DOE

• Per survey results, there are other utilities who would benefit through increased interaction and support

9

Looking Ahead…

• SLRA industry guidance complete by year’s end

• SLRA optimization/efficiency interaction will come to a close

• DLR staffing into 2017

• March ACRS Meeting- Staff must have SLR-GALL finalized 1 month prior

- Opportunity for stakeholder review

10

Paul AitkenManager – Nuclear Engineering License Renewal Project August 29, 2016

Dominion Decision – Subsequent License Renewal (SLR)

Industry Updates

NRC

NEI

Research areas – progress / challenges

What’s Next?

Summary

2

ScopeGather available technical, licensing and financial data

Include only incremental and prudent capital upgrades

Balance near-term financial impact against risk reduction and long-term operational benefits

AssumptionsLife Extension to 80 years is very viable using current licensing basis

Technical areas of interest will be reactor vessel, concrete and cables

Positively shape externally driven R&D programs

Actively influence expanding regulation to keep focus

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19

70

19

80

19

90

20

00

20

10

20

20

20

30

20

40

20

50

20

60

SU1

SU2

MP2

NA1

NA2

MP3

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Original License Current License Subsequent License

Dec 72 May 12 May 52May 32

Jan 33May 73 Jan 13 Jan 53

Dec 75 Jul 15 Jul 35 Jul 55

Dec 80 Aug 20 Aug 40 Aug 60

Apr 86 Nov 25 Nov 45 Nov 65

Jun 78 Apr 18 Apr 38 Apr 58

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CO Orig Current SLR

Unit 1 1972 2012 2032 2052

Unit 2 1973 2013 2033 2053

Two Westinghouse 3-loop PWRs

Net Capacity: Each unit is 838 MW (net) => 1676

Lifetime Generation over 460,000,000 MWhrs

5

Large dollar items4th Emergency Diesel

Integrated Technical Specifications

Large cable replacements

Steam Generator replacement

Instrumentation & Control upgrades

Several other smaller items

6

Richmond Times Dispatch front page – 10/21/15

“Va. attorney general’s office says Dominion should abandon third North Anna reactor”

Mr. David Christian, CEO Dominion Generation, White House Summit on Nuclear Energy - 11/6/15

“Nuclear Power can and will play a meaningful role in mitigating the potential impacts of climate change.”

7

First station in fleet to reach end of life (2032/2033)

Makes sense for Dominion, stakeholders and customers

Political landscape was supportive

Notified NRC Nov 2015 of intent to apply for SLR

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2019

9

Subsequent License Renewal Timeline

Utilities

11

Utilities

12

Submit to NRCIssue Final GALL

Issue Final DRAFT GALL

StartProduction

DRAFT Documents Published

SCOPING SCREENING

PHASE 1: PROJECT IMPLEMENTATION

PILOT AMP

AGING MGMT PROGRAMS

AGING MGMT REVIEWS

TLAA Scoping

TIME LIMITED AGING ANALYSISProvisional

Time

( DRAFT GALL )Incorporate FinalGALL Info

Environmental Report ( ER )

Start Preliminary LRA DRAFT Final LRAPEER Review

MGMT Review

2015 2016 2017 2018 2019

13

NEI working with the NRC for greater regulatory efficiency, effectiveness and agility

Assist in developing enhancements to existing NRC guidance documents

Coordinate the industry resources to align with SLR priorities

14

Reduce NRC resources during audits & inspections

Improved use of E-Portals and electronic media

Improved Management Oversight and Schedule Adherence

GOAL – Reduce RAIs and shortened application review from 22-> 18 months or better

15

SLR Executive

WG Pitesa (Duke)

Environmental TF

Ranek (Exelon)

SLR/LR TF

Hanson (NEI)

Lead Plant FG

Aitken (Dominion)

Implementation WG

Hekking (Duke)

Electrical WG

Hilditch (Exelon)Civil/Structural WG

Clohecy (Exelon)Mechanical WG

Taylor (Entergy)

Aging Mgmt Program

Effectiveness

Dorts (First Energy)

OE for Aging Mgmt

Hilditch (Exelon)

Industry GALL / SRP

Expert Panel

Blocher (Dominion)

16

Continue research to support safe, long-term operations

Focus on current safety / reliability improvements for operation and SLR

Focus on reactor materials, concrete, and electrical cables

17

First License Renewal PeriodMRP-227-A and the associated NRC Safety Evaluation has become an acceptable and established way to manage aging of the RVIs for the first license renewal

Subsequent License Renewal PeriodMRP-227, Rev. 2 will be created for the subsequent license renewal period. This document will be used by utilities to manage aging of the RVIs

18

MRP-227

MRP-135Materials Model for

Functionality Analysis

MRP-231,232Aging Management

Strategies

MRP-229,230Aging/Functionality

Analysis

Materials Research Cloud

MRP-175Screening Criteria

MRP-189,190,191Screen & FMECA

Analysis

Operational Experience

MRP-156 Component

Consequence

19

EPRI: MRP-227-A EPRI: MRP-227, Rev. 2 4th QTR 2020

GAP

20

Use current revision of MRP-227 as the starting point

Update RVI Component List

Update aging degradation mechanism screening criteria as necessary (MRP-175)

Component Screening and Evaluation (MRP-191)Perform component screening for aging degradation mechanisms

Identify affected components

Evaluate primary, expansion, and existing components examination strategies, and update as needed

Integrate affected components into inspection guidance (Lead Plant Application)

22

Progress Alkali-Silica Reaction (ASR) in concrete

Irradiation of concrete

ChallengesRegulatory uncertainty if ASR is discovered

23

ProgressOngoing EQ related research to address gaps in the accelerated aging methods used for original cable qualification

ChallengesFinal results available in 2019 during review of subsequent license renewal applications

Results may impact the current licensing basis

24

Finalize GALL Review

Finalize Efficiencies & Optimization

Monitor on-going Research for Impact to

Lead Plants

Production – Production - Production!

25

Progress over the last few years

Focus on the “Right Research”

Industry better aligned

Collaborative regulatory discussions

Increased utility engagement

We own this – it’s our future26


Sherry Bernhoft

Senior Program Manager


August 29, 2016

LTO Research Focus Areas

Project Plans for 2017 & 2018

Date: August 11, 2016

2


Topics

Strategic Research Focus Areas (RFAs)

– Results of members feedback

Key accomplishments for 2016

Project plans for 2017 and 2018

– Two year project look ahead

High Priority:

1. Reactor pressure vessel

2. Primary system metals, welds and piping

3. Electrical cables

4. Concrete and containment structures

Aging Impacts:

– Increased thermal exposure

– Increased radiation exposure

– Stress corrosion cracking

– Fatigue usage

– Wear

– Etc…..

3


Member Resources:

LTO Program on EPRI.com

– LTO cockpit page

– Monthly updates

– Project Status Updates (PSUs)

– Project Overview Forms (POFs)

– Publications

Joint DOE-LWRS EPRI-LTO R&D Plan

– Updated annually

– INL LWRS website or LTO cockpit

LTO Program Roadmaps

– Updated every 6 months

– Link to Sector Roadmaps at bottom right of LTO Cockpit Home Page

Opens at LTO Roadmaps but includes all for Nuclear Sector

LTO Contacts:

– [email protected]

– [email protected]

mailto:[email protected]

mailto:[email protected]

4


Research Focus Areas (RFAs)

5


Development of Strategic Focus Areas and Project Proposals

Membership & industry expert interaction

– Workshops

– Conferences

– Project Meetings

– Webcasts

Roadmaps

– Specific topic/issue

– Identifies integrated set of actions to address challenge

EPRI staff formulates strategic focus areas and details of the type of research that should be conducted in that area

– Drivers

– Objectives

– Tasks

– Expected value

Use your engagement

to identify research

needs to address

technical challenges

Consider topics that have broad applicability

and are strategic in nature

6


How Does the EPRI Portfolio Get Developed?

EPRI Members are the focal point for the development of the R&D

portfolio

Your engagement is needed for:

• Identification of strategic focus areas and project ideas

• Prioritization of strategic focus areas

• Technical evaluation of project objectives, tasks, and expected benefits

• Identification of specific project elements that are needed to address

challenges at your plant

• Provision of technical data from your plant/country that applies to the

project

• Participation development and review committees

7


Prioritization Process

EPRI:

– Provided a written description of strategic focus areas sent out in May 2016

– Included a description of the types (examples) of projects

– Ranking sheet for completion by IC and TAC advisors

– Additional details provided in the LTO Program Plan (on the LTO Cockpit)

Advisors:

– Had fours weeks to review and provide comments

– Feedback was in the form of 1,2, or 3 ranking (1-highest) and any written

comments

Goal - Have the portfolio for 2 years out finalized in September

2017 – 2018 portfolio finalized in August 2016

Reviewed by TAC & IC at the August NPC

8


Strategic Focus Areas (1 – High, 3 – Low)

Strategic Focus

Area

Ranking 2015 Ranking 2016 Comments - Summary

Aging management

for RCS metals,

RPV

1 1.22 Critical area for interface with MRP, BWRVIP and

reactor pressure vessel integrated surveillance

programs

Aging management

for concrete and

structures

1 1.22 Support for concrete aging management

programs, ASR and irradiation impacts

Aging management

for electrical cables

1 1.67 Need to understand synergistic effects testing and

impacts on cable qualifications (EQ)

Opportunities for

modernization and

efficiency

improvements

2.75 2.78 Needed to ensure cost effective LTO

Support for

industry and lead

plant activities

1.5 2 EPRI needs to stay engaged in industry activities

and provide support on technical issues

9


EPRI LTO R&D Projects - 2009 through 2014

Aging Management Research

– RCS primary system metals

Advanced welding for highly irradiated materials - repair strategy

Advanced radiation resistant materials - future replacement strategy

– Reactor pressure vessel embrittlement

– Concrete and concrete structures

– Electrical cable systems

Opportunity for Modernization

– Centralized on-line monitoring

– Advanced I&C

– Enhanced safety and risk analysis

Enabling Technologies

– Integrated Life Cycle Management

– Plant Demonstration Projects

10


EPRI LTO R&D Projects – 2015 through 2019

Aging Management Research

– RCS primary system metals

Advanced welding for highly irradiated materials - repair strategy

Advanced radiation resistant materials - future replacement

strategy

– Reactor pressure vessel embrittlement

– Concrete and concrete structures

– Electrical cable systems

Opportunity for Modernization

– Centralized on-line monitoring – Transitioned to Fleet-Wide Health Monitoring

– Advanced I&C

– Enhanced safety and risk analysis – Advanced PRA (Phoenix) Risks & Safety Management

Enabling Technologies

– Integrated Life Cycle Management – Transitioned to Plant Engineering

– Plant Demonstration Projects

11


Key Accomplishments for 2016

12


Industry Support

Technical reviews, comments and public meetings on NRC draft subsequent license renewal (SLR) GALL

Research ‘deep dive’ meetings with NRC and DOE-LWRS

Update the Advisory Committee on Reactor Safeguards (ACRS) on research status for SLR

NEI Task Force and Working Group meetings

IAEA IGALL, revision 3 – technical experts are participating on the steering committee, mechanical, electrical and structural working groups

IAEA SALTO lessons learned workshop

International member workshops on LTO

COG R&D Strategic workshop

Will be updating the IGALL EPRI product mapping

Research

Operating Experience

Inspection Results

Living research programs –

13


Cable Aging Management

Updated joint EPRI-DOE-NRC cable aging research roadmap

IAEA IGALL working group on cable aging management

Workshops with UNESA (Spain) and CEZ on cable inspection and condition monitoring programs

Harvested cables from Crystal River for testing by NRC Research, DOE at PNNL, and EPRI

Submerged cable condition monitoring (EPRI technical report under review by NRC)

Temperature and radiation data capture (data loggers) continuing at Palo Verde

Starting update of License Renewal Tools Report for Electrical Equipment

14


Concrete Aging Management

Updated joint EPRI-DOE-NRC concrete aging research roadmap

IAEA IGALL working group on containment structures

Alkali Silica Reactions (ASR)

– Developed roadmap with technical report milestones

– First report on structural implications in draft

– Will be supporting lead plant structural monitoring program walk downs

Irradiation and gamma heating degradation of concrete support structures

– Published report on structural implications on BWR cavity and support structures

– Completed modeling and will be publishing a report on the impacts on the PWR biological shield wall

– Completing assessment on the impacts of gamma heating

Spent fuel pool leakage and boric acid corrosion

– Report with results from a three year study on the impacts of boric acid on SFP concrete

Working with Spain on harvesting irradiated concrete cores from Zorita

Progress is being made on NDE techniques for concrete

15


RCS Metals and Reactor Pressure Vessel

Completed the roadmap to update technical reports for SLR

– Approval from the Materials program executives and funding to perform the work

– Presented to the NRC

Working closely with two lead US plants (PWR & BWR) to develop programs that will be the template for future SLRAs

– Includes approach for BWR integrated surveillance monitoring program for 60 to 80 years

– PWR supplemental surveillance program

Working with ORNL (DOE-LWRS) completed installation of welding cubicle in the hot cell and irradiating additional specimens for welding demonstrations

IAEA Working Group on materials aging management

International workshops on use of EPRI reports to support technical basis for LR

Starting work on updating the LR Mechanical Tools Report

16


Opportunities for Modernization

Completed feasibility study and literature

survey with INL (LWRS-DOE) for

development of a Structural Heath

Monitoring program

Supporting INL (DOE-LWRS) on control

room modernization project at APS

Collaboration with INL (DOE- LWRS) on

advanced risks informed safety margins

analysis

Application of risk informed safety margins to

evaluate life cycle management (Xcel pilot)

Integrated Life Cycle Management (ILCM)

completed turnover to Plant Engineering

– Pilot plant studies underway

– Interest group being formed

ISSUE DEFINITION

MANAGEMENT

ANALYSIS

STEP

S O

F TH

E R

ISM

C M

ETH

OD

Decision maker characterizes the issue(s) and analysis

scope

Determine risk-based scenarios

Safety case used to support decisions and Risk-Informed

Margins ManagementManage uncharacterized risks

Safety margin and uncertainty

quantification

Represent plant operation

probabilistically

Augment the plant model with issue specific knowledge

1 2

3 4

Represent plant physics

mechanistically

5 6

87

Coupling and Interactions

17


LTO Project Plans for 2017 & 2018

18


LTO Funded Projects for 2017 & 2018

Metals Materials Aging Management

– Advanced welding project for repair and replacements

– BWR Integrated Surveillance Program development

Concrete Aging Management

– ASR Aging Management studies

– Structural assessment of irradiated concrete

– Harvesting and testing irradiated concrete cores from Zorita

Cable Aging Management

– Cable vulnerability studies based on temperature and radiation data collection

– Cable harvesting and testing

– Advances in condition monitoring technology

Modernization and Efficiently Improvements

– Structural monitoring program

– Interface with INL on control room upgrades

– Risk Informed Safety Margin Characterization

Industry Support

– Subject matter experts

– Lead plant support

– Joint roadmaps and coordination with research partners

– IAEA IGALL participation

– International workshops

19


Aging Management Roadmap

20


Enhancement and Modernization Technology Roadmap

21




Rich Tilley

Sr. Technical Leader


August 29, 2016

Updated LTO Issue

Tracking Table

Date: August 10, 2016

2


Issue Tracking Table Objectives

Primary

– Provide a expert input summary of key technical issues that will

inform utility decision making regarding long-term operations

(especially beyond 60 years)

Secondary

– Communicate with all stakeholders regarding R&D efforts and

priorities

The right research and the right time

Focus on key issues identified by industry to satisfy regulatory

needs

– Emphasize linkage to aging management programs

3


Issue Tracking Table Success

Current priorities align with issue areas as communicated by

NRC in their EMDA and draft GALL-SLR

– Reactor pressure vessels

– Reactor internals

– Cables

– Concrete

Opportunity to focus on-going R&D efforts on completion of

specific items (technical reports and processes) to support

issue resolution for licensing

– Detailed project status available via Project Status Updates on LTO

Cockpit

4


Changes to 2016 ITT

Improved focus on specific technical issues

– No new issues identified

– Shift from broad areas (e.g., RPV Embrittlement) to specific issues

that impact utility aging management programs.

Extending BWRVIP from 60 years to 80 years impacts GALL

XI.M31 (= IGALL AMP118)

– Organize items according to LTO Strategic Focus Areas

– Eliminate inclusion of low priority/completed items

– Still include technology areas that may impact licensing

Risk and Safety, I&C, and others

5


Example: 2015 ITT Item on BWRVIP

BWR Vessel Surveillance Specimens

6


Revised 2016 Issue Tracking Table

Step through the table as sent out to IC Members

– Final review prior to distribution

7


Discussion?

8



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