1. April 3, 2001 Washington, DC 2001 EMS Users Group

2. Manley Higgins PEPCO Project Manager Mark Bruen KEMA Consulting Principal Consultant PEPCO EMS Migration

3. EMS Migration Migration Philosophy Overview of EMS Migration Phases Related Enhancement Efforts Future Phases Long Range Plan & Update Process Challenges for the Future

4. EMS Migration Migration Philosophy

5. In 1995, PEPCO Adopted a Long- Term EMS Migration Philosophy to Keep the EMS “Ever-green”.

6. Migration Philosophy Migration Rationale: Keep the system technologically current to meet the terms of the financial lease To protect the investment in the operational procedures, EMS software, system design, & database. To avoid obsolescence of hardware

7. Migration Philosophy Migration Rationale (cont.): To support increased performance and capacity requirements To allow for the addition and enhancement of system functions as business requirements change Enhance the EMS to accommodate the implementation of large-scale Distribution Automation and Substation Automation projects

8. Migration Philosophy Migration Rationale (cont.) And, to avoid the extreme and expensive effort of another EMS “forklift” replacement, including: Procurement costs System Testing Cutover Software Quality Control Staff time commitment

9. EMS Migration Overview of the PEPCO EMS

10. Overview of the Original PEPCO EMS EMS is “Consolidated Control System” Designed to support Transmission, Distribution, and Generation Operations (Generation sold December 2000)

11. Overview of the Original PEPCO EMS Interfaces with other critical PEPCO and external systems including: New Outage Management System Corporate Systems PJM

12. Overview of the Original PEPCO EMS Procured from ABB Network Management (formerly NMTI) Delivered in 1993 Initially commissioned in 1994

13. Overview of the Original PEPCO EMS Full featured EMS including: SCADA Graphical User Interface (not workstation based Full Graphics) Distributed System w/ Proprietary Hardware Front-ends Full Advanced Applications Suite Real-time and Study PEPCO Specific Applications

14. Overview of the Original PEPCO EMS Dispatcher Consoles Transmission Dispatchers Load Dispatchers Transmission Shift Supervisors Distribution Shift Supervisors System Support Consoles Development and Testing Facility Dispatcher Training Simulator

15. EMS Migration PEPCO Migration Phases

16. Migration Phases PEPCO established a multi-year migration program: To fully migrate the EMS every seven years. PEPCO’s management committed to to fund the effort to avoid the high costs of another procurement.

17. Migration Phases Migration Phase I – 1995 – 1996 Open Systems Platform Enhancements including: Introduction of Dec Alpha Hardware Platform Operating System Upgrades VAX VMX to UNIX Intel RMX to UNIX

18. Migration Phases Migration Phase I (cont.) Conversion of Code to C (from less common/difficult languages – PLM, Assembly) FORTRAN not converted

19. Migration Phases Migration Phase II – 1997-1998 ICCP for standards-based communications with: PJM PEPCO to BGE (planned merger) Ranger Data Acquisition Server Compaq Alpha hardware and Unix operating system Bow Software Protocol Emulations

20. Migration Phases Migration Phase II – (cont.) Addition of PI Historian Data Repositories Upgraded DTS Increased Database Sizing Via System Master Parameters

21. Migration Phases Migration Phase III – 1999 – 2000 Workstation Based Graphical User Interface ODBC Interface Into EMS NT Based Historian Study Mode State Estimator – Uses Historian Data for Studies DNP Protocol

22. Migration Phases Migration Phase III (cont.) Event Storage and Retrieval Updated Software Tools to Improve Maintenance and Support Environment

23. Migration Phases Migration Phase IV – 2001-2002 (currently in progress) Increase DB Sizing (1.5 x current) Naming size increases DNP Protocol Converter (Rockwell 5020 to DNP) Transfer Existing RTU to RDAS Graphical Data Engineering Tool CIM Based

24. Migration Phases Migration Phase IV – (cont.) Facilities and Support Systems Console Voice Equipment (integrates PEPCO’s radio and telephone requirements) Upgrade/Life Extension for Critical Power (UPS) and HVAC

25. Migration Phases More to Come? Phase V – Commercial Display Generation Software Phase VI – Upgrade EMS Application Processors, storage devices, printers, Bow-Tie Equipment, LAN I/F Phase VII – SCADA System Phase VIII – Advanced Apps. These phases are currently under review

26. EMS Migration Related EMS Enhancement Efforts

27. RTU Protocol Conversion for existing RTUs Outage Management System/EMS Interface – using ICCP Source Data Management System – to improve data management process System Security Enhancements

28. Related EMS Enhancement Efforts PEPCO Substation Automation Initiatives: Increased data from smart relays and Substation Automation systems (4 kV, 13 kV, 69 kV, 230 kV substations) VAR Dispatch – using feeder capacitors.

29. Related EMS Enhancement Efforts PEPCO Distribution Automation Initiatives: Feeder sectionalization using fault detectors and Motor Operated Disconnects 69 kV MODs 13 kV MODs Utilinet Spread Spectrum Radios

30. EMS Migration Future Migration Phases

31. Migration of Advanced Applications to support: New Business Needs New ISO Support Requirements New Corporate Information Needs Corporate Reorganizations and Industry Restructuring

32. EMS Migration Long-Range Plan & Update Process

33. Long-Range Plan and Update Process PEPCO is currently reviewing the Long-Range Migration Plan Looking at current operational and business needs Investigating current technology Assessing impacts of restructuring To properly align the next migration phases with the overall long-term direction

34. Long-Range Plan and Update Process Goal is to provide an updated 10 Year Forecast for planning purposes. Also to more clearly define the near- term needs and associated migration projects.

35. EMS Migration Challenges for the Future

36. Distribution Operations Optimization Fault detection and automated feeder reconfiguration Other distribution functions Additional Expansion of Distribution Functional and Data Requirements Smart Relays, MODs, etc.

37. Challenges for the Future Integration with Corporate Systems Corporate-wide Data Availability For Maintenance Monitoring System Enterprise Application Integration (EAI) Environment

38. EMS Migration Questions and Comments?

39. EMS Migration Thank You!