1. Resource Asset Registration Form Version 5.1 Update July 12, 2012

2. 2 RARF Version 5 - two Phases Phase I – March 21, 2012 – RARF Version 5.0 –Transposed the RARF form – resources are in rows –Phase I - Separated RARF into forms for Generation, Wind, Combined Cycle, Transmission, and Load Resources –Updated the Business Rules (Validation rules were re-prioritized, some new errors may appear that were not previously seen due to Warnings that caused some errors to be over-written) –Added new fields (Business Rules for new fields were not active) –Pre-populated RARF Version 5.0 forms were emailed to REs July 12, 2012

3. 3 What Changed in RARF Version 5.0/5.1? Phase II – June 26, 2012 – RARF Version 5.1 –Activated the business rules on new fields (not enforced until October 1, 2012.) –Added the AGR tab to the Gen_Form_Pivoted.xls for NPRR437 “Allow Aggregation of Multiple Generators Into A Single Resource For Market and Engineering Modeling” –Separated out the 3 tabs “General and Site Information”, “GEN Load Split - ESIID”, “Private Network – Site” from the Gen_Form_Pivoted.xls, Wind_Form_Pivoted.xls, Combined_Cycle_Form_Pivoted.xls and built a new form General_Site_ESIID Information.xls” –Added a Non-Modeled Resource form July 12, 2012

4. 4 RARF Version 5.1 Timing RARF Version 5.1 Timing: Pre-populated, RARF Version 5.1 forms were sent to each Resource Entity on July 2, 2012. No immediate action is required. RARF Version 5.1 validation rules on new fields became effective, but are not enforced until October 1, 2012. RARF Audit Reports reflect errors and warnings associated with all the new required data fields. To the extent possible, existing RARF data was pre-populated in RARF Version 5.1 forms ( except PUN Load Data, One-Lines, Transformer Test Data, Stability Study Model, PSCAD Model, Dynamic Data, Collector System – WIND, Collector System-Wind Seg Data and any new data fields that were completed prior to July 2, 2012.) July 12, 2012

5. 5 RARF Version 5.1 Submission All Generation RARF Version 5.1 forms must be submitted together in a ZIP file. –Generation RARF package - ZIP file contains: General_Site_ESIID Information.xls (new for RARF Version 5.1) Gen_Form_Pivoted.xls (site code must be entered in cell B5 on the Unit Info – GEN tab) Wind_Form_Pivoted.xls (site code must be entered in cell B5 on the Unit Info - WIND tab) Combined_Cycle_Form_Pivoted.xls (site code must be entered in cell B5 on the Unit Info - TRAIN tab) Non_Modeled_Gen_Form_Pivoted.xls (site code must be entered in cell B5 on the Unit Info – DG tab) (new for RARF Version 5.1) Transmission_Form_Pivoted.xls (site code must be entered in cell B5 on the Line Data tab) July 12, 2012

6. 6 RARF Version 5.1 Submission (continued) Load Resource package (LAAR) – separate ZIP file –LAAR Generation Package – ZIP file Contains: LAAR_Form_Pivoted Submission requirements: Do not change RARF form names. All file extensions must remain as.xls For Generation Resources - name the RARF.ZIP file by site code. (Example: SITECODE.zip) For Load Resources - name LAAR.ZIP file by DUNS. (Example: 111111111.zip) July 12, 2012

7. 7 RARF Version 5.1 Submission (continued) As of June 26, 2012, all RARF submittals must be on RARF Version 5.1 forms Two methods to submit –Through Internet MIS as Service Request (Preferred) –Through ERCOT Legal (mpappl@ercot.com, and cc: resourcereg@ercot.com)mpappl@ercot.com resourcereg@ercot.com Submitted by Authorized Representative (or backup Authorized Representative) of the Resource Entity RARF Version 5.1 forms and Guide located on ERCOT.com (http://www.ercot.com/services/rq/re/)http://www.ercot.com/services/rq/re/ July 12, 2012

8. 8 RARF Processing ERCOT Processing –Registration receives RARF and performs initial screening –Registration runs programmed business rules to ensure compliance with defined business rules and completeness of data –If passed, Registration communicates scheduled Model Load Date to RE submitting request by way of approval of the Service Request with notations of the MRD, based on Section 3.10.1, Timeline for Network Operations Model Changes –Model load date available on website (http://www.ercot.com/gridinfo/transmission/opsys-change- schedule) July 12, 2012

9. 9 RARF Processing ERCOT Processing (continued) –Registration uploads RARF to data base of record and notifies Network Modeling Group (NMG) –NMG reviews RARF for accuracy and ability to model –NMG or other downstream systems may have additional questions July 12, 2012

10. 10 RARF Processing July 12, 2012

11. 11 RARF Version 5.1 – New Fields RARF Version 5.1 – New Fields: In the email sent to each Resource Entity on July 2, 2012 with the pre-populated, RARF Version 5.1 forms, we included a file that lists added and updated data fields. RARF_NEW_ AND_UPDATED_FIELDS.xls –Change Description lists all new and updated fields –Most updated fields were updates to the Business Rules –Shows RARF Form, RARF Tab and Data Field –States the Business Rules/Basic UI validations for the new and updated fields Examples of new fields are as follows. July 12, 2012

12. 12 RARF Version 5.1 – New Fields Unit Info – Gen, CC, Wind tab: Non-Modeled Generator Transmission Only Date (POI) [Optional, required for addition of the generation site transmission equipment on a earlier Network Operations Model MRD than the resource] Standard Generation Interconnection Agreement (SGIA) Signature Date Unit Start Date (Model Ready Date) [Optional, required for new resource to be added to the Network Operations Model] POI – Sub-Station Code/Sub-Station Mnemonic POI - Voltage Level POI - PTI Bus Number Governor Droop Setting Governor Dead-band Design Max Ambient Temperature Design Min Ambient Temperature July 12, 2012

13. 13 RARF Version 5.1 – New Fields Ownership – Gen, CC, Wind tab: Ownership Start Date Ownership Stop Date Parameters – Gen, CC, Wind tab: Unit De-rating Values (0 – 120 degrees F) Reactive Capability Data Provided Below Is Gross Values? (Gross is required). Reactive Capability Data Provided is from NDCRC Test Data? If Reactive Capability Data Provided Is From NDCRC test Data Then Enter The Date On Which The Test Was Performed. July 12, 2012

14. 14 RARF Version 5.1 – New Fields Planning – Gen, CC, Wind tab: Positive Sequence Z (unsaturated) Negative Sequence Z (unsaturated) Zero Sequence Z (unsaturated) Direct Axis Sub-transient Reactance, X"dv (saturated) Direct Axis Transient Reactance, X'dv (saturated) Zero Sequence Grounding Resistance For An Impedance Grounded Generator In P.U. (100 MVA Base) Zero Sequence Grounding Reactance For An Impedance Grounded Generator In P.U. (100 MVA Base) Stability Study Model tab – embed any executable code models PSCAD Model (if applicable) tab Dynamic Data tab – embed any PDF diagrams, csv files and tabular data July 12, 2012

15. 15 RARF Version 5.1 – Examples of New Fields – Wind_Form_Pivoted.xls Unit Info – Wind tab additional fields: Height of Meteorological Instrumentation - Wind Speed Height of Meteorological Instrumentation - Wind Direction Height of Meteorological Instrumentation - Barometric Pressure Height of Meteorological Instrumentation – Temperature July 12, 2012

16. 16 RARF Version 5.1 – Examples of New Fields – Wind_Form_Pivoted.xls Planning – Wind tab (continued): Average Amount Of Auxiliary Real Power (and characteristics) Average Amount Of Auxiliary Reactive Power (and characteristics) Auxiliary Load Power Factor TURBINE STEP-UP TRANSFORMER DATA –High Side Voltage Level (nominal) –Low Side Voltage Level (nominal) –High Side Voltage Connection –Low Side Voltage Connection –Impedance Z –X/R Ratio –Zero Sequence Z –Zero Sequence X/R Ratio –Base Mva For Transformer Data July 12, 2012

17. 17 RARF Version 5.1 – Examples of New Fields – Wind_Form_Pivoted.xls Collector System - WIND tab: COLLECTION SYSTEM ONE LINE DIAGRAM (Embed a PDF One Line Diagram) COLLECTION SYSTEM DETAILED MODEL (Embed a PSS/e Raw Data or Powerworld Model) COLLECTION SYSTEM DETAILED MODEL –Cable Type –Voltage Level kV –POSITIVE SEQUENCE DATA R/Kft X/Kft Charging Bc/Kft –ZERO SEQUENCE DATA R0/Kft X0/Kft July 12, 2012

18. 18 RARF Version 5.1 – Examples of New Fields – Wind_Form_Pivoted.xls Collector System-Wind Seg Data tab: Cable Type WIND SEGMENT DETAILS –From –To –Circuit Number –Voltage Level –Cable Segment Length –Number of Turbines On Cable Segment July 12, 2012

19. 19 RARF Version 5.1 – Examples of New Fields – Transmission_Form_Pivoted.xls Line Data tab: Zero Sequence Line Resistance In P.u. (100mva Base) Zero Sequence Line Reactance In P.u. (100mva Base) Zero Sequence Charging Susceptance In P.u. (100mva Base) Line Temperature tab: Planning Rate C – rating for the conductors that does not include the terminal equipment rating limitations - Must be >= Nominal Emergency Rating (2HR Rating) Breaker Switch Data tab: Continuous Rating 2-hr Emergency Rating 15 Min Rating July 12, 2012

20. 20 RARF Version 5.1 – Examples of New Fields – Transmission_Form_Pivoted.xls Transformer Data tab: Zero Sequence Data - Winding Connection Code (1-9) Zero Sequence Grounding Resistance For An Impedance Grounded Transformer In P.U. (100 MVA Base) Zero Sequence Grounding Reactance For An Impedance Grounded Transformer In P.U. (100 MVA Base) Zero Sequence Resistance In P.U. (100 MVA Base) Zero Sequence Reactance In P.U. (100 MVA Base) Transformer Test Data tab - embed any PDF diagrams, csv files and tabular data July 12, 2012

21. 21 RARF - Future updates Future RARF updates: Provide for new Resource types (Solar, Energy Storage, etc.) NPRR425 – register WGR Groups Other possible changes RARF documentation updates: Updates to the RARF Guide and RARF Glossary Listing of RARF Audit Report Business Rules for all data fields July 12, 2012

22. 22 RARF Version 5.1 Action Items - by October 1, 2012 RARF Version 5.1 Action Items: By October 1, 2012 Resource Entities must have a complete, ERCOT-approved RARF for each Resource site, including all new data. RARF submittals must be on RARF Version 5.1 forms Review and re-submit - PUN Load Data, One-Lines, Transformer Test Data, Stability Study Model, PSCAD Model (if applicable), Dynamic Data, Collector System – WIND (for WGRs), Collector System-Wind Seg Data (for WGRs), and any new data fields that were completed prior to July 2, 2012. RARF Version 5.1 business rules on new data fields will be enforced beginning October 1, 2012. July 12, 2012

23. 23 RARF Version 5.1 – Questions following the WebEx Following the WebEx, if you have any questions: Contact your Account Manager who will bring in the needed resources to answer the questions Client Services line at 512-248-3900 For RARF submittal questions and issues, email ERCOT Resource Registration at resourcereg@ercot.comresourcereg@ercot.com To raise issues with RARF Version 5.1 forms, email ERCOT Resource Registration at resourcereg@ercot.comresourcereg@ercot.com July 12, 2012

24. 24 Questions July 12, 2012