SNC/SCANA – New Build Configuration Management John Parler- V.C. Summer - CM Supervisor V.C. Summer 2&3 – Configuration Management Team Thomas Jackson - Vogtle – Mech/Civil Supervisor Vogtle 3&4 – Configuration Management Team BOTH Introduce ourselves and our roles within our Organizations Don’t spend a lot of time here.

Objectives Provide an update on construction progress for Summer 2&3 and Vogtle 3&4. Provide summary of ongoing efforts with contractor on Configuration Management. Provide an update on Configuration Management system development at both sites.

VCS Units 2&3 Dec 2016 Unit 3 Turbine Buildings Cooling Towers Unit 2

Dec 2016 Unit 3 forground Unit 2 center Unit 1 on the lake right edge (blue)

VCS Unit 3 Nuclear Island Module placement

Jan 10 2017 Unit 2 SG placement. Const site pictures are on the SCEG Flicker site.

THOMAS Progress as of January 2015. Use to compare against newer pictures.

THOMAS Progress as of April 2017.

THOMAS Unit 3 Nuclear Island

THOMAS Unit 3 Nuclear Island

THOMAS Unit 4

Westinghouse Bankruptcy Georgia Power and Westinghouse have, in principle, reached a new service agreement which allows for the transition of project management from Westinghouse to Southern Nuclear and Georgia Power once the current engineering, procurement and construction contract is rejected in Westinghouse's bankruptcy proceeding.   THOMAS Current Status

Westinghouse Bankruptcy The interim assessment agreement will remain in place until June 3 while the new service agreement is finalized and all approvals are obtained. During this time, work will continue at the site and an orderly transition of project management will begin.  As previously stated, the company will take all actions necessary to hold Westinghouse and Toshiba accountable for their financial obligations.  Georgia Power will continue work to complete its full-scale schedule and cost-to-complete analysis and work with the project Co-owners (Oglethorpe Power, MEAG Power and Dalton Utilities) and the Georgia Public Service Commission to determine the best path forward for our customers.  THOMAS Current Status

Westinghouse Bankruptcy Similar to Southern SCANA has in principle, reached a service agreement which allows for the transition of project management from Westinghouse to SCANA once the current EPC contract is rejected in Westinghouse's bankruptcy proceeding. The SCANA interim agreement is in place through June 26. The site work has continued with SCANA paying the subcontractor Bills during the interim period.   SCANA is working with the project Co-owner (Santee Cooper) to develop a cost-to-complete analysis and schedule and to determine the best path forward for our customers.  SCANA’s preference is to complete the units for the benefits that they would provide for our system, but all available options have to be considered. Goal is to reach a decision that will satisfy the growing generation needs while balancing the needs of the customer and stakeholders. JOHN SCANA Current Status

TimeLine 2006 Southern Nuclear files for Early Site Permit with NRC 2009 Georgia PSC approves construction of Units 3 and 4 NRC issues Early Site Permit Preliminary site work begins 2012 NRC issues Construction and Operating License (COL) Full construction begins 2019 Unit 3 expected to begin operating 2020 Unit 4 expected to begin operating THOMAS Time Line

Ongoing CM Activities Similar Turnover Processes Early Transfer of Records Phased Approach to Information Turnover Information Turnover Pilots Design Authority Transfer BOTH All of this equates to a common Information Turnover Plan/Process

Ongoing CM Activities Releasable, Disclosable, and Deliverable Native Files Calculations As-Built vs As-Designed Master Equipment List & Other Databases Station Equipment Labeling BOTH All of this equates to a common Information Turnover Plan/Process

CMIS Development SmartPlant® Foundation Provides Change Control User Securities Relationship Synchronization Traceability Data Consolidation Over All Engineering Documents, Plant Assets, and Regulatory Requirements JOHN The CMIS System Will Improve: CM Principles Process Efficiencies Modification Overhead Engineering Programs Access to Information Document-Tag Cross Referencing Data Centralization Relationships 3D Model

CMIS Development Various Organizational Data Needs… Single Source of Truth JOHN

CMIS Development Milestones Information Turnover Ready – 1st Quarter 2017 Procedure Development: Sept 2015 (Production) Station Master Equipment List: Nov 2016 Engineering Document Module: Nov 2016 CMIS & CMMS interface: Jan 2017 Unit 1 EQ Database incorporation: Jan 2017 Information Turnover Module: December 2016 Phase 2 – in process: September 2017 Authoring Tools: October 2017 JOHN Procedure processing in CMIS: Sept 2015 (Production) Station Master Equipment List module ready: Nov 2016 (WIP MEL loaded – Feb 2017) Engineering Documents processing module: Nov 2016 Information Turnover Module in 2 phases

Program Development Milestones Design Authority Ready – 4th Quarter 2017 Engineering Change Process: Sept 2017 Engineer Qualifications (TMWs): started 3rd qtr 2016 Unit 2/3 training program – Accredited: April 2017 Receiving Historical Records Pkgs: April 2017 JOHN Design Authority Ready – 4th Quarter 2017 Engineering Change Process: Sept 2017

Configuration Information Management System CIMS – Vogtle 3&4 Configuration Information Management System THOMAS Screenshot of software. Turnover and Design Changes

System Notebooks THOMAS Use of system notebook to build relationships and associate information

Change Effects Analysis Design Changes Change Effects Analysis THOMAS Impact review

Progress of Design Change Design Changes Progress of Design Change Original Document Worksheet/Change Notice THOMAS

Efforts to Date Turnover Design Changes Master Equipment List (MEL) 5+ Buildings and Simulator already completed Aux Pumphouse will be first System Design Changes Migrated to industry Standard Design Process (SDP) Design changes completed for turned over buildings Master Equipment List (MEL) 75000+ tags loaded to date Subcomponent Review Board (SRB) THOMAS

Questions THOMAS / JOHN John Parler– jparler@scana.com Thomas Jackson – tjackson@southernco.com