1. > Title of presentation - Date - References11 Model Exchange and Naming -- Activity  61970-452 Standard  New draft of 61970-452 standard has been created. (K. Hunter) 61970-452 Rev 4 (May 4, 2007) Various edits and update for CIM 11. Important new classes: - ModelAuthority - ModelAuthoritySet Extended use case discussion added as Appendix A. (J. Britton)  Promotion of model authority concepts European User Group May 2007 NERC DEWG Meeting, Sept 2007 General presentations (PES Atlanta, IEEE Tampa, Utility Integration Houston, …)  Interop 10 (Sept, 2007) CIM version finalized for test (L. Osterlund) Organization (M. Goodrich) Did not test model authorities – expected next year.  Related Standards  CIM for Planning EPRI Project Planning & Operating Model Exchange  Wg13 NWIPs EMS Model Update Steady State Solution  Active CIM Model Exchange Projects  WECC  ERCOT

2. > Title of presentation - Date - References22 Breakout Discussion Topics  Review of Model Exchange Appendix A Use Cases  NERC DEWG Meeting Report  Europe Review  UCTE Day-Ahead Model Exchange Process  Planning  Summary of EPRI CIM for Planning project activity  MMWG Procedure for Eastern Interconnect  Active Projects  WECC and ERCOT Model acquisition from members EMS model update Model availability to members Planning

3. > Title of presentation - Date - References33 Meeting Report  Presented “Transmission Model Exchange” powerpoint summarizing the CIM model authority based exchange processes.  The presentation will be posted on the CIM User Group website.  Discussion included relevance to ERCOT, WECC and Eastern Interconnect situations.  Demaree discussed recent presentation to the NERC DEWG (Data Exchange Working Group).  We need to establish an ongoing relationship between DEWG and the Model Exchange WG.  DEWG has an interest in seeing that the Interop tests become more realistic: Real models. More complete coverage of possible modeling patterns. Testing that relates to real usage.  DEWG is interested in model change notification system.  Relationship between state estimation quality and model quality was discussed. State estimation residuals provide important feedback about modeling accuracy.  Action: Britton/Ortleib will follow up with DEWG to continue liaison.