ML041410146

Meeting Handouts-Duke Energy Corporation

ML041410146
Person / Time
Site:	Oconee
Issue date:	05/20/2004
From:	Duke Energy Corp
To:	Office of Nuclear Reactor Regulation
References
Download: ML041410146 (6)

Text

.i.

, Duke fEnergy,.

Oconee Nuclear Site NRC Interface Meeting May 10, 2004 C.,

CD C+'

Duke VEnergy.

Underlying Foundation

• Oconee and NRC working together for nuclear safety built on a foundation of:

- Mutual trust and respect

- Open communication

- Clarity of requirements and expectations

- Consideration of priorities

- Predictable results 2

Duke VEnergy.

Oconee Timeline Overview

• Oconee PRA Development

• Early 90's Emergency Power Study

• Mid-90's Safety-related Classification Project 1998; MOG ongoing, Design Basis Group formed, Priorities Understood and Aligned

• 1 1-2-98

• 1999 Im Interface Meeting in NRR iplemented ITS

• License Renewal and Significant Plant Upgrade

• NRC Transition to ROP 3

.0

, Duke IEnergy.

Summary Of Interactions

• ROP Items

- EFW design Tornado

-HELB e NRR Items EFW

- Tornado HELB (ASP)

-AB Flood

- CR Habitability

-AB Cooling

-SSF

-AB Flood

- CR Habitability/AST

-Keowee

- QA classifications 4

Duke V Energys Barriers To Success

• Oconee Design

- Non-SRP, LBLOCA bounding

• Minimal historical interest in non-Ch events 15 external

- Analysis and documentation rigor much 15 scenarios less than Ch

- SERs did not document entire NRC review and approval

• NRC change from deterministic to risk-based 5

e.

Duke V Energys Barriers To Success

• Existence of comprehensive ONS PRA

• Absence of approved RCP seal model

• Staff/inspector discomfort with ONS original design

• Competing and/or misunderstood priorities

• Absence of predictable outcomes

• Reluctance to accept engineering judgment 6