1. 1 Market Notification Email List Process Change Update Commercial Operations Subcommittee Meeting November 14, 2005

2. 2 Methodology Current Process: ERCOT sends message to multiple mail lists, including working group lists in attempt to cover desired audience. Desired Process: ERCOT sends message to specific e-mail list designed for distribution of such message. Market Participants self- signup for the list, determining who should receive the message.

3. 3 Goals Primary: Allow for self-signup of Market Participants to appropriate mail groups Allow for efficiently sending messages to targeted audience Cease using Working Group list for notice distribution Secondary: Reduce number of duplicate e-mails

4. 4 NOTICE DATE: NOTICE TYPE: SHORT DESCRIPTION: INTENDED AUDIENCE: DAY AFFECTED: LONG DESCRIPTION: ACTION REQUIRED: ADDITIONAL INFORMATION: CONTACT: If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Relations phone number at (512) 248-3900 or contact ERCOT Client Relations via e-mail at ClientRelations@ercot.com. Notice Template

5. 5 Informational Outages – Wholesale Releases – Wholesale Testing – Wholesale Outages – Retail Releases – Retail Testing – Retail Retail Processing Extracts – Wholesale Extracts – Retail Legal Notification Transmission Congestion Rights (TCR) Notice of System Change (PRR) Notice of System Change (SCR) Settlements – Public Contracts Reliability Must Run Request for Proposal (RFP) Power Operations Technical Market Operations Bulletin Power Operations Bulletin Education and Training Notice Types

6. 6 Distribution List NameProposed List NameList Description General Notice_General@lists.ercot.com Notices of a general nature intended for distribution to the ERCOT Market, but not applicable to any other specific mailing list. System Outages/Releases/Testing – Wholesale Notice_Release_Wholesale@lists.ercot.com Notices concerning system outages or upgrade releases and testing that affect Wholesale Market functions. System Outages/Releases – Retail Notice_Release_Retail@lists.ercot.com Notices concerning system outages or upgrade releases that affect Retail Market functions. Testing - Retail Notice_Testing_Retail@lists.ercot.com Distribution list for information regarding Market Participant testing with respect to Retail Test Flights and Retail Systems Testing. Retail Processing Notice_Retail_Processing@lists.ercot.com Notices concerning the processing of retail transactions. Operations Notice_Operations@lists.ercot.com Notices concerning Power Operations and technical issues at ERCOT Extracts - Wholesale Notice_Extracts_Wholesale@lists.ercot.com Notices of interest to any Wholesale parties utilizing Data Extracts and reports, including procedures, postings or changes. Lists

7. 7 Distribution List NameProposed List NameList Description Extracts -Retail Notice_Extracts_Retail@lists.ercot.com Notices of interest to any Retail parties utilizing Data Extracts and reports, including procedures, postings or changes. Legal Notification Notice_Legal_Notification@lists.ercot.com Notices to the ERCOT Market of a legal nature TCR Notice_TCR@lists.ercot.com Notices concerning Transmission Congestion Rights. PRR/SCR Notice_PRR_SCR@lists.ercot.com Notices of implementation or details of Protocol Revision Requests or System Change Requests. Settlements – Public Notice_Settlements@lists.ercot.com Notices concerning the Wholesale Settlements issued by ERCOT that are public in nature. Contracts/RFP Notice_Contracts@lists.ercot.com Notices of Requests for Proposal and Requests for Information that are issued by ERCOT and contracted services such as Reliability Must Run and Black Start. Market and Power Operations Bulletins Notice_Bulletins@lists.ercot.com Distribution list for Market Operations Bulletins, Power Operations Bulletins. Training Notice_Training@lists.ercot.com Distribution list for notices of ERCOT provided training events. Lists

8. 8 Notice Type to List Notice TypeExternal Mailing ListInternal Mailing List InformationalGeneral Entire Mail Container - If Necessary Outages – WholesaleSystem Outages/Releases/Testing – Wholesale QSE Project Managers, QSE Primary Contacts as necessary Releases – WholesaleSystem Outages/Releases/Testing – Wholesale QSE Project Managers, QSE Primary Contacts as necessary Testing – WholesaleSystem Outages/Releases/Testing – Wholesale QSE Project Managers, QSE Primary Contacts as necessary Outages – RetailSystem Outages/Releases – Retail RMC, CRPC, TDSPPC Releases – RetailSystem Outages/Releases – Retail RMC, CRPC, TDSPPC Testing – RetailTesting - Retail RMC, CRPC, TDSPPC, TTPT, (Entire Mail Container as necessary) Retail Processing RMC, CRPC, TDSPPC Extracts – WholesaleExtracts - Wholesale Extracts – RetailExtracts -Retail RMC, CRPC, TDSPPC, 1Data Extracts, COPS & RMS where applicable Legal Notification QSE,LSE,RES,TDSP Primary Contacts, as appropriate

9. 9 Notice Type to List Notice TypeExternal Mailing ListInternal Mailing List Transmission Congestion Rights (TCR)TCR QSE,LSE,RES,TDSP Primary Contacts, as appropriate Notice of System Change (PRR)PRR/SCR QSE,LSE,RES,TDSP Primary Contacts, as appropriate Notice of System Change (SCR)PRR/SCR QSE,LSE,RES,TDSP Primary Contacts, as appropriate Settlements – Public QSE Settlement Personnel ContractsContracts/RFP QSE,LSE,RES,TDSP Primary Contacts, as appropriate Reliability Must RunContracts/RFP QSE Primary Contacts Request for Proposal (RFP)Contracts/RFP Power OperationsOperations QSE Project Managers, QSE Primary Contacts as necessary TechnicalOperations QSE Project Managers, QSE Primary Contacts as necessary Market Operations BulletinMarket and Power Operations Bulletins QSE Project Managers Power Operations BulletinMarket and Power Operations Bulletins Education and TrainingTraining RMC, CRPS, TDSPPC, RMS

10. 10 Next Steps Establish the Mailing lists Notice will be provided when new lists are available for Market Participant sign-up. Instructions will be included with lists available and matrix detailing what notice types get sent to which lists. Use tandem mailings for a limited period (1 Month) Discontinue using subcommittee mailing lists for routine market notifications.

11. 11 Proposed Timeline Make new Mail Lists available Dec 1. Allow sign-up throughout Dec. Continue to use both current process and new lists through December Discontinue using Subcommittee lists Jan 1, 2006

12. 12 Questions