1. 1 © 2012 Westinghouse Electric Company LLC. All Rights Reserved.Westinghouse Proprietary Class 3 The Incorporation of the Utilities Input into the Design of the AP1000 ® Main Control Room James Flowers (Southern Nuclear Company) Julia Forbes (Duke Energy) Matt Gibson (Duke Energy) Julie Reed (Westinghouse Electric Company) AP1000 is a trademark or registered trademark of Westinghouse Electric Company LLC, its affiliates and/or its subsidiaries in the United States of America and may be registered in other countries throughout the world. All rights reserved. Unauthorized use is strictly prohibited. Other names may be trademarks of their respective owners.

2. 2 Westinghouse Proprietary Class 3© 2012 Westinghouse Electric Company LLC. All Rights Reserved. Introduction The design of the AP1000 Main Control Room (MCR) is currently in the final stages of completion. From the early stages of design, the AP1000 customer utilities have actively participated in the design process with Westinghouse Electric LLC. This paper describes the mechanisms that have been used to effectively incorporate utility input and provides examples of the resultant visible impact on the design of the MCR and the Human System Interface (HSI) resources. Objective of a ‘standard’ USA design - the advantages and challenges.

3. 3 Westinghouse Proprietary Class 3© 2012 Westinghouse Electric Company LLC. All Rights Reserved. The USA Customer Base ●NuStart – a consortium of utilities and reactor vendors with the objectives of demonstrating the NRC new process for combined Construction and Operating License and completing the design process for two reactor technologies. ●AP1000 customers are Southern Nuclear, SCE&G, the former Progress Energy, TVA, Duke Energy, and NextEra (FPL) ●NuStart utilities worked with Westinghouse to design the AP1000 main control room

4. 4 Westinghouse Proprietary Class 3© 2012 Westinghouse Electric Company LLC. All Rights Reserved. Mechanisms for Utility Input The major mechanisms were as follows: ●Workshops ●Design Reviews ●Human Factors Engineering Tests ●Open and frequent communication ●Collaboration in dealing with Licensing aspects

5. 5 Human Factors Workshops (1) 2007 MCR Layout Technical Support Center and Emergency Operations Facility 2008 Workshop updates and closure of Actions 2009 Wall Panel Information System – monitors and their layout, information layout ( dedicated alarm monitors, dedicated plant overview monitors, flexible displays for other monitors) Alarm Presentation System – groundbreaking design layout and display method Computerized Procedures – with real time data and logic indication Communication Protocols

6. 6 Westinghouse Proprietary Class 3© 2012 Westinghouse Electric Company LLC. All Rights Reserved. Human Factors Workshops (2) 2010 ●Continued design development and reviews ●Use of AP1000 simulator control rooms ●Local workstations, 2011 ●Continued design development and reviews ●Workstation configuration, surveillance monitoring, peer-checking, pre- configured reports Agreements and Actions recorded and tracked

7. 7 Westinghouse Proprietary Class 3© 2012 Westinghouse Electric Company LLC. All Rights Reserved. Alarm Presentation System

8. 8 Westinghouse Proprietary Class 3© 2012 Westinghouse Electric Company LLC. All Rights Reserved. Computerized Procedures System

9. 9 Westinghouse Proprietary Class 3© 2012 Westinghouse Electric Company LLC. All Rights Reserved. Graphics Display

10. 10 Westinghouse Proprietary Class 3© 2012 Westinghouse Electric Company LLC. All Rights Reserved. Design Reviews Formal Westinghouse Design Reviews ●Preliminary (2006) ●Intermediate (2010) ●Final (2010 – Hardware, 2011 – Software) Actions formally tracked and closed.

11. 11 Westinghouse Proprietary Class 3© 2012 Westinghouse Electric Company LLC. All Rights Reserved. Human Factors Engineering Tests (1) ●Three formal human factors engineering tests, as follows: PHASE I:Soft Controls (2005) PHASE II:Control Room Integration Test (2006) PHASE III:Integrated Engineering Test (2008) Results collected via observations, questionnaires, de-briefings, digital data recordings Resulting recommendations fed back into the design process.

12. 12 Westinghouse Proprietary Class 3© 2012 Westinghouse Electric Company LLC. All Rights Reserved. Human Factors Engineering Tests (2) MCR development facility comprising: Operator consoles Supervisors console Safety system console Diverse actuation system panel Control system workstations Computerized procedures system Alarm presentation system Wall Panel Information System Communication facilities

13. 13 Westinghouse Proprietary Class 3© 2012 Westinghouse Electric Company LLC. All Rights Reserved. Human Factors Engineering Tests (3) ●Addressed human factors-related design issues, including: –Room layout –Integrated use of HSI Resources –Visual access –Communication protocols and procedure use ●Use of real-time simulator ●Realistic operations scenarios ●Current reactor operators and supervisors as subjects ●Test observers from the utilities

14. 14 Westinghouse Proprietary Class 3© 2012 Westinghouse Electric Company LLC. All Rights Reserved. MCR Development Facility

15. 15 Westinghouse Proprietary Class 3© 2012 Westinghouse Electric Company LLC. All Rights Reserved. Licensing Activities ●Utilities and Westinghouse worked together to support the licensing process on the following: –Documentation development and reviews –Participation in meetings –Collaboration and changes on responsibilities following issuance of Combined Operating Licenses

16. 16 Westinghouse Proprietary Class 3© 2012 Westinghouse Electric Company LLC. All Rights Reserved. Preparation for Integrated System Validation (ISV) ●ISV is key part of the final human factors verification and validation activities. ●ISV undertaken by Westinghouse using a series of simulated scenarios, including accident and normal operations. ●Subjects provided by the utilities employees undergoing AP1000 operator training

17. 17 Westinghouse Proprietary Class 3© 2012 Westinghouse Electric Company LLC. All Rights Reserved. Main Control Room 3D Model

18. 18 Westinghouse Proprietary Class 3© 2012 Westinghouse Electric Company LLC. All Rights Reserved. AP1000 Engineering Development System

19. 19 Westinghouse Proprietary Class 3© 2012 Westinghouse Electric Company LLC. All Rights Reserved. Conclusions Ultimately customer input has ensured and improved the human factors adequacy of the AP1000 design. This will enhance safety, operability – and profitability. Frequent and open communication between the customers and vendors has resulted in a collaborative design product. Utilities spoke with ‘one voice’.