Subsequent License Renewal

Draft Generic Aging Lessons Learned Report

and Standard Review Plan

June 1, 2016

Steve Bloom, Branch Chief

Subsequent License Renewal,

Guidance, and Operations Branch

Agenda

• License Renewal Background

– Process

– Principles

– Status

• Subsequent License Renewal (SLR)

– Background

– Technical Issues

– Guidance

– Timeline

2

License Renewal Application

Review Process

3

Environmental

Review

NRC Renewal

Decision

License Renewal

Application

Submitted to NRC

Safety

Review

Review by

ACRS

Hearing,

if requested

and granted

4

License Renewal Principles

• Regulatory process ensures that the current

licensing basis provides and maintains an

acceptable level of safety

• Each plant’s current licensing basis must be

maintained during the renewal term in the same

manner, and to the same extent, as during the

original licensing term

5

License Renewal Status

• Older plants will reach the end of 60 years in 2029

• 83 units have renewed licenses

• 12 units currently under review

• 5 upcoming units between 2017 and 2022

• 2 units in 2019 for SLR

U.S. Commercial Nuclear Power

Reactors: Years of Operation by the

End of 2016

6

45 reactors

38 reactors

16 reactors

1 reactor

>40 years 30-39 years 20-29 years 0-19 years

Projected U.S. Nuclear

Power Capacity

Megawatts

If all

existing

nuclear

plants

operate for

80 years

If all existing nuclear plants

operate for 60 years

Sources: Energy Information Administration, Nuclear Regulatory Commission

7

Subsequent License Renewal

8

• Principles of license renewal would continue to be effective to ensure safety

• The Commission reaffirmed that the current regulatory processes are sufficient

• The current regulatory processes allows for

• Guidance updates to address emerging issues

• Enhancements to the oversight process to focus additional attention on AMP implementation

• Imposing new requirements, such as license conditions, to ensure safe plant operation

• Optimization of application review process

Technical Issues for

Operation Beyond 60 years

9

• Reactor pressure vessel neutron embrittlement at high fluence

• Irradiation-assisted stress corrosion cracking of reactor internals and primary system components

• Concrete and containment degradation

• Electrical cable qualification, condition monitoring and assessment

SLR Guidance

10

• Generic Aging Lessons Learned for Subsequent License

Renewal (GALL-SLR) Report (NUREG-2191)

‒ Provides generic evaluation of existing aging management programs

‒ Acceptable methods to manage aging effects

‒ Plant-specific alternatives may be proposed

• Standard Review Plan for Review of Subsequent License Renewal Applications for Nuclear Power Plants (SRP-SLR) (NUREG-2192)

‒ Provides guidance to NRC staff reviewers to perform safety reviews of SLR applications

SLR Guidance Basis • Expected aging differences for operations beyond

60 years

• New domestic and foreign operating experience

• Aging management program audits and inspections

occurring during the license renewal application

review process and the period of extended operation

• Implementation of GALL Report and SRP, Rev. 2

• Issuance of interim staff guidance

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SLR Timeline

2014 2015 2018 2016 2017 2019 2021 2020

Develop

GALL & SRP

Draft GALL & SRP

Public Meeting &

Comments

Disposition

Final GALL &

SRP Draft GALL & SRP

for comments

First Application

Submitted First SLR

License Issued?

First Application

Review?

12

2022

Summary

• The current regulatory framework is adequate for SLR

• SLR guidance documents for will be issued in 2017 to

facilitate NRC readiness to review of SLR applications in a

consistent and timely manner

• At least one utility has stated its intention to submit a SLR

application in 2019

• Industry is conducting significant research to ensure the

technical issues are being addressed

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