1. Resource Registration Update Dana Showalter Patrick Coon March 4, 2008

2. 2 Lead From The Front Texas Nodal http://nodal.ercot.com Resource Registration Status (MP11) as of February 1, 2008 as of February 29, 2008

3. 3 Lead From The Front Texas Nodal http://nodal.ercot.com Resource Registration Status (MP11) as of February 1, 2008 as of February 29, 2008

4. 4 Lead From The Front Texas Nodal http://nodal.ercot.com Resource Registration Status (MP11) as of February 1, 2008 as of February 29, 2008

5. 5 Lead From The Front Texas Nodal http://nodal.ercot.com Resource Registration Status (MP11) as of February 1, 2008

6. 6 Lead From The Front Texas Nodal http://nodal.ercot.com Resource Registration Status (MP11) as of February 1, 2008

7. 7 Lead From The Front Texas Nodal http://nodal.ercot.com RARF Addendum Status Addendum 1 – all Generation Resources –Received 72% of addendums that were sent out –Not sent to those where no RARF has been received –Due date was January 31, 2008 Addendum 2 – all Combined Cycle Resources –As of February 28, 2008 received 28% of addendums –Haven’t processed all submittals Any submittal not received by March 15 will not be included in the pre-population of the final RARF

8. 8 Lead From The Front Texas Nodal http://nodal.ercot.com Resource Registration – Current Activities (MP11) RARFs - Quality vs. Quantity Created email list “ResourceRegistration” to communicate: –Market-wide issues with RARF fields –Answers to common questions –Posting of presentations, guides, and other supporting documentation –Sign up at http://lists.ercot.comhttp://lists.ercot.com Validation of data is leading to market clarifications –Ramp Rate Curve issues need revisited by March 15 –Others issues will be addressed as we move to the official RARF Scheduled workshops – to address data completeness and quality –By Resource Type (Wind, CC, Other Gen, Load) –Simultaneous presentation at Taylor Facility and via WebEx –Register through LMS

9. 9 Lead From The Front Texas Nodal http://nodal.ercot.com Resource Registration Workshops By the end of these workshops, attendees should have a solid understanding of the data being requested on the RARF and how it will be used by ERCOT Nodal systems. To achieve this goal, ERCOT will take the following steps: –Review the data fields on the RARF section by section to assist attendees with completing and understanding the form –Review key sections where there are market-wide inconsistencies –Make experts available to field questions Attendees of this workshop should be ready for the following: –Review RARF submittals and guides prior to attending the class –Submit specific comments or questions to NodalMarketTransition@ercot.com in advance, if possible NodalMarketTransition@ercot.com –Use the information from this workshop to review and revise final, pre- populated RARF prior to official submittal

10. 10 Lead From The Front Texas Nodal http://nodal.ercot.com Resource Registration Workshops – Typical Agenda Review new form General Information and Ownership Generator Unit Information Combined Cycle Configurations (Combined Cycle Session only) Resources Parameters Operational Resource Parameters (i.e. fields that QSE will be able to update through MMS) –RUC –Ramp Rate Curves Generator Step-Up Transformer Additional Planning Data –Generator Details –Plant Protection –Auxiliary Load –Subsynchronous Resonance PSSE Model Additional Assets Private Network

11. 11 Lead From The Front Texas Nodal http://nodal.ercot.com Resource Registration Workshops Resource Registration Workshops to be held at the ERCOT Taylor facility and via WebEx –Monday, March 10, 2008 – Conventional Generation (non Wind, non CC) –Thursday, March 13, 2008 – Combined Cycle Resources –Monday, March 17, 2008 – Wind Resources –Thursday, March 20, 2008 – Load Resources Registration and Attendance: –Registration is being managed through the Learning Management System (http://www.ercottraining.com)http://www.ercottraining.com –Select the proper section – by resource type and by attendance (Taylor or WebEx) –Attendees from all Resource Entities and associated facilities, including QSEs, are encouraged, but not required. Participation will be documented.

12. 12 Lead From The Front Texas Nodal http://nodal.ercot.com Resource Registration Form and Clarifications NPRR QSE representing this Generation Resource shall submit Resource Parameters for operational purposes in accordance with Section 3.7.1.

13. 13 Lead From The Front Texas Nodal http://nodal.ercot.com Resource Registration – Next Steps (MP11) RARF Workshops – March, 2008 Freeze data from EDS RARF as of March 15, 2008 –Changes needed to data during the database freeze will need to be made to the permanent RARF by the Resource Entity when it is released Pre-populate final RARF between March 18 - April 7, 2008 Send to Resource Entities during the week of April 7, 2008 Official RARF due to ERCOT by May 1, 2008 Populate new database with official data as received Develop project for database with market interface option

14. 14 Lead From The Front Texas Nodal http://nodal.ercot.com QSE Attestations Why revisiting this? –Problems with form Mnemonics not used CC Mnemonic not known in September Not sent by representing Qualified Scheduling Entity Resources moved –Sent only to QSEs with problems on form submitted in September –Key to mapping Ancillary Services to the Units/Trains that will provide them Resolution –Pre-populated with mnemonics and sent to representative QSE –Due to ERCOT (mpappl@ercot.com) February 22, 2008mpappl@ercot.com Received 60% Attestation information to MMS by March 7, 2008

15. 15 Lead From The Front Texas Nodal http://nodal.ercot.com Resource Mapping (MP10) Send by Generation Site to Resource Entity Authorized Representative by March 15, 2008 Preliminary review of a few sites has been completed and comments will be incorporated Package will include –Spreadsheet mapping Resource to Resource Nodes Resource to EPS Meters Load EPS Meters –NMMS One-line Screenshot(s) –Guide –Form Resource Entities to return verification form to nodalmarkettransition@ercot.com by April 15, 2008 nodalmarkettransition@ercot.com

16. 16 Lead From The Front Texas Nodal http://nodal.ercot.com Questions??? Any additional questions and all submittals regarding the registration process or the RARF should be directed to: –NodalMarketTransition@ercot.comNodalMarketTransition@ercot.com