Texas Retail Market Testing Flight 0608 – V3.0 Market Participant Retail Testing Orientation

Agenda I.Business Requirements for Entering Test Flight II.Flight Overview III.Retail Testing Website Overview IV. Texas Test Plan Team (TTPT) V. Scripts Overview VI. TDSP Issues Experienced VII. Retail Testing Requirements and Expectations VIII. Timeline Review and Next Steps

Business Requirements for Entering Test Flight

Entering Test Flight How do I sign up to participate in Flight 0608, TX SET V3.0? New LSE Current MPs Additional DUNS for Certified REP What are the business requirements I must fulfill before entering the test flight?

Signing up for Flight 0608: New LSEs New LSEs that wish to sign up for Flight 0608 must complete ALL of the following by Flight Deadline: Wednesday, May 14, p.m. CPT Submit LSE Application Application can be found online: Select Services Select Registration and Qualification Select Load Serving Entities Select Load Serving Entity Application for Registration QSE Designation must be made prior to production Note – QSE must be Qualified/Certified by ERCOT Application requires a DUNS number

Signing up for Flight 0608: New LSEs Submit $500 LSE Application Fee Filed for REP Certification with PUCT (not required for MOU/EC) Complete and submit Testing Worksheet (TW) TW located on the Texas Retail Testing Website ( Notify ERCOT of intent to test via once TW has been submitted Notification must include company legal name and DUNS

Signing up for Flight 0608: New LSEs Additional DUNS for Certified REP please note: If a decision is made to add a DUNS for a Certified REP (DUNS or DUNS plus 4), this new entity is considered a new LSE from a business perspective –The new LSE must follow the steps for signing up for Flight 0608 From a testing perspective, there are ad-hoc truncated testing tracks available under certain circumstances.

Signing up for Flight 0608: Current LSEs Current LSEs will be required to test if they are entering new service territories, testing additional business functionality, or adding another entity to their business umbrella.

Signing up for Flight 0608: Current LSEs To sign up for Flight 0608, a current LSE must complete the following by Flight Deadline: Wednesday, May 14, p.m. CPT Submit UPDATED Testing Worksheet (TW) TW located on the Texas Retail Testing Website ( Notify ERCOT of intent to test via once TW has been updated Notification must include company legal name and DUNS

Flight Deadline The deadline to sign up for Flight 0608, TX SET V3.0 is: Wednesday, May 14, p.m. CPT

Registration Requirements ERCOT Registration Requirements are defined in Protocol Section 16: Registration & Qualification of Market Participants – ERCOT Registration Requirements must be fulfilled prior to a Market Participant receiving their certification letter and migrating to production.

LSE Registration Requirements New Load Serving Entity (LSE) Registration Requirements: LSE Application Completed Executed Standard Form Agreement QSE Designation Note – QSE must be qualified/certified by ERCOT LSE Application Fee Received PUCT Certification Issued (not required for MOU/EC)

ERCOT Challenge True or False? A New LSE may submit their LSE Application without designating a QSE. Answer – True, but they cannot go into production until a QSE is designated.

ERCOT Challenge True or False? A Current MP needs to call their Account Manager and the Flight Administrator to inform them of their intent to participate. Answer – False. Current MPs must update their TW by deadline

ERCOT Challenge Will I be allowed to participate in Flight 0608 if I have not completed the Flight signup criteria? Answer – No. If you do not complete the signup criteria by the flight deadline, you will be welcomed to Flight 1008.

ERCOT Challenge What is the Flight 0608 Deadline? Answer – Wednesday, May 14, p.m. CPT

Questions?

Flight Overview

Flight 0608 Test Participants Existing CRs currently in the Market –Some may be testing in new TDSP territories or for new functionality Existing TDSPs –Some may be testing new CR relationships ERCOT –Testing any new CR/TDSP relationships or new CR functionality CRs new to the Market –Testing full Flight using ‘ALL’ Track

Flight 0608 How do we move forward in a Flight? What happens if I don’t meet Flight Checkpoints and/or tasks? Sending and Receiving transactions on a daily basis

How Do We Move Forward? Days – MPs and ERCOT are required to complete their daily activities as outlined in the testing scripts. Critical Dates – Scripts are marked with several critical dates that must be met for specific Business Rules to be tested successfully.

How Do We Move Forward? Check Points – Check Points will exist throughout the market test. These check points exist to allow: –The Flight Administrator to gauge where the market test is in relation to the flight timeline. –Take necessary action to get the flight back on schedule. Weekends – The Flight Administrator may elect to use weekends for testing in the event testing has fallen behind schedule.

Scripts You will learn today how to read the scripts and how to download the scripts for use in your own shops.

Testing Tracks and Testing Relationships

Testing Tracks for V3.0 End-to-End Scripts Track Names –TX SET 3.0/ Mass Transition Scripts- TS –Connectivity Testing Scripts –All New IOU CRs –All New MOU/EC CRs

Testing Tracks for V3.0 End-to-End Scripts Track Names (cont) –All New Service Order Option 1 LSE –All New IOU CSA CRs –All New MOU/EC CSA CRs –PUCT REP Certification Option 2 LSEs –Existing CR – Changing Service Provider

Testing Tracks for V3.0 End-to-End Scripts New IOU CR –All New LSEs will execute all scripts in this track with all TDSP territories the LSE is entering –This track is also performed by an existing LSE if they are entering a new TDSP territory New MOU/EC CR –Any LSE who signed up to test with a MOU/EC TDSP will execute all scripts in this track with the MOU/EC TDSP

Testing Tracks for V3.0 End-to-End Scripts New Service Order Option 1 LSE –An LSE who chooses to be a Service Order Option 1 LSE will test this track with each IOU TDSP certified territory

Testing Tracks for V3.0 End-to-End Scripts New IOU CSA CR –New IOU CSA LSEs and existing LSEs wanting to add CSA functionality will test this track with ERCOT who will simulate the TDSP New MOU/EC CSA CR –New MOU/EC CSA LSEs and existing MOU/EC LSEs wanting to add CSA functionality in MOU/EC territories will test this track with the MOU/EC TDSP territory the LSE is entering

Testing Tracks for V3.0 End-to-End Scripts PUCT REP Certification Option 2 LSEs –LSEs who are PUCT REP Option 2 LSEs are only required to test this track within the Market Changing Service Provider –LSEs who are changing Service Providers will execute all scripts in the track with all TDSP territories in which the LSE is certified

NAESB Connectivity Testing All testing participants must test Connectivity using NAESB EDM v1.6 Everyone participating in Flight 0608 must test Connectivity with all trading partner relationships defined within your TW and ERCOT When sending connectivity transactions, include the NAESB connectivity log in the notification After Connectivity is tested, any changes will require retesting before the start of the Flight

Testing Relationships ERCOT has committed to providing the following information to the market: –For all new LSEs and TDSPs in the market, ERCOT will provide the testing relationship list by Friday, May 16, These MPs will have Friday, May 16 and Monday, May 19, 2008 to review the testing relationships –These lists will be sent to the Primary Testing, Secondary Testing, and Primary Business contact for each LSE and each TDSP that is listed on the Testing Worksheet (TW)

Testing Relationships If a Market Participant has issues with the testing relationships, issues must be communicated back to ERCOT by 5 p.m. on Monday, May 19, ERCOT will contact each party who has issues to work towards resolving the issue. ERCOT will provide a final testing relationships list (adding to the list any New LSE or TDSP who are entering the market) by Wednesday, May 21, Checklists will be created after the final testing relationships lists are delivered to the Market Participants.

What’s the Deadline for Flight 0608? The deadline to register for participating in Flight 0608 is Wednesday, May 14, p.m. CPT

What Happens If I Don’t Meet Flight Checkpoints/Tasks? Daily conference call with the Flight Administrator Escalation procedures to executive management at the MP, ERCOT, and possibly the PUCT MP may be requested to work overtime and/or weekends to catch up MP may be asked to start the script over at a later time

Random Testing Market Participants testing the ‘New’ track will participate in Random Testing The purpose of Random Testing is to assist Market Participants with the uncovering of potential validation problems This allows the Market Participant to make changes to their system during the Retail Market Flight Test The goal is to reduce problem transactions in production

Random Testing Validations –Business validation –ANSI validation Note: Each MP must successfully complete two Business validation tests and two ANSI validation tests Further information regarding Random Testing may be found at the following: Select Committees and Groups Select RMS Select TTPT Under Key Documents, Select the Texas Market Test Plan Guide (TMTP)

Random vs. Scripted Random Testing provides a level of testing that is closer to a real-time production environment Random testing adds a dimension of validation that is not currently performed with scripted testing

Pre-Testing Preparation Review ERCOT Protocols, Solution to Stacking documentation, Texas Market Test Plan Guide, TDSP Tariffs, and the Terms and Conditions Review the V3.0 TX SET Implementation Guides –These often contain additional information on the business processes Market Participants must establish banking relationships prior to the Connectivity Kick-Off call Review Flight 0608 Pre-Testing Timeline

Pre-Testing Preparation Review all test scripts within your test tracks Contact ERCOT and/or the Texas Test Plan Team when you have questions If you have a service provider, coordinate your testing activities in advance When utilizing a service provider for Flight Testing, the testing process between the MP and the service provider must be representative of their production environments

The Testing Process Preparation – Review test scripts for your testing track(s) Kickoff and Daily Conference Calls Connectivity Testing “Penny Test” Sending and Receiving Transactions Simulated System Date, Script Days, and Business Days

Conference Calls Daily Teleconferences –Attendance is Required –Daily Roll Call –Mute when not talking –Avoid cell phones –Calls begin promptly Conference calls will be held at 2:30 p.m. CPT. The Flight Administrator or a person designated by the Flight Administrator will facilitate the call. In the event the Flight Administrator finds it necessary, a follow-up call will be scheduled for later that day or early the next day before 10:00 a.m. CPT.

Testing Contacts Market Participants must provide the following Testing Contacts on the Testing Worksheet (TW) Primary & Secondary Testing Contact Primary & Secondary Business Contact – MUST be an employee of the Market Participant company Emergency Contact Executive Contact

Testing Contacts Market Participants must provide the following Testing Contacts on the Testing Worksheet (TW): (Continued) Treasury Contact TTPT Member Primary & Secondary Connectivity Contacts Encryption Contact

Questions?

Retail Testing Website Your One Stop Shop for Retail Market Testing!

This Site Contains… Texas Market Test Plan (TMTP) Pre-testing activities schedule for V3.0 Flight testing Testing Scripts – End to End Testing Contacts Daily Conference Call Agendas/ Meeting Notes Testing Worksheet (TW) Flight Test Checklists File Cabinet – various documents and archived files

Login Information Retail Testing Website Many of the sections are password protected To obtain your own logon, send an to: You will receive your username and password to access everything you will need on the website

Testing Worksheet The Testing Worksheet (TW) provides valuable information to testing participants such as: –Company Information –Contact Information –Testing Information –Connectivity Information –EDI Specifications Information

New or Existing TW? To create a New TW means that your entity has never created a TW in the past To update an Existing TW indicates that you have previously created a TW –Update means only what you are requesting to test in this Flight –This is not an all-inclusive list for your entity. The updates are only those for which you are testing in this Flight

New MPs create a new TW Current MPs update existing TW

Delete Button - TW The Delete button, which appears on any of the tabs contained within the Testing Worksheet, is a functional delete option. That means if you select the Delete button, the information will disappear from your view; however, ERCOT still stores the data which was contained within your saved TW at the time of the delete. If you delete your TW by accident, you may contact ERCOT and we can recover your TW for you. Please note – the Delete function deletes your entire TW, not just the information appearing within that tab.

Delete Button - TW Delete Button

Options What is the difference between Service Order/Outage Options and PUCT REP Certification Options on the TW?

IOU Service Order & Outage Options More Information on the Service Order and Outage Options can be found in the Standard Terms & Conditions: Select Electric Select Rates and Tariffs Select Transmission and Distribution Rates for Investor Owned Utilities (IOU)

IOU Service Order & Outage Options Option 1 – LSE may direct Retail Customers to call the LSE for such reporting or requests and electronically forward outage information to the TDSP Option 2 – LSE may direct Retail Customers to call the LSE for such reporting or requests and then forward the call to the TDSP Option 3 – LSE may direct Retail Customers to directly call TDSP to make such reports or requests

MOU/EC Service Order & Outage Options Option 1 – Unless otherwise agreed to by LSE and MOU/EC TDSP, the LSE will direct Retail Customers to call or contact the MOU/EC TDSP directly to report outages, interruptions, irregularities, and/or to make service requests. The LSE will provide Retail Customers with a toll-free number supplied by the MOU/EC TDSP for purposes of such reporting.

MOU/EC Service Order & Outage Options Alternatively, and only with the mutual consent of LSE and MOU/EC TDSP, one of the following options can be selected: Option 2 – Retail Customers will be directed to call the LSE to report outages, interruptions, irregularities, and/or service requests. The LSE will then electronically forward such information to MOU/EC TDSP Option 3 – Retail Customers will be directed to call the LSE to report outages, interruptions, irregularities, and/or service requests. The LSE will then forward such calls to MOU/EC TDSP

PUCT REP Certification Options Option 1 – REPs defining their service area by geography Option 2 – REPs defining their service area by customers –Option 2 LSEs that serve only their own load such as power plants may qualify as an Option 2 REP when they file for their PUCT REP certification –Option 2 LSEs would test with the TDSPs that provide wires service to their affected loads Please do not confuse this with Service Order Option 1, 2, or 3 and/or Outage Option 1, 2, or 3.

Options Again…… What is the difference between Service Order/ Outage Options and PUCT REP Certification Options on the Testing Worksheet? Service Order/ Outage Options refer to how the REP communicates with its customers and the TDSP with regard to service orders and outages PUCT REP Certification Options refer to how the REP defines their service area: geographically or by customers they will serve

PUCT REP Certification Option 2 REPs Only Scripts that must be executed –STK06 (On cycle switch request conflicts with scheduled move in) –SCR31 (Competitive Metering) –SCR32 (Disconnect for Non-Pay) –SCR33 (Payment/Bank Script) –SCR34 (Service order reread, completion, usage, invoice) –SCR35 (MVI on unmetered ESI ID, usage, cycle bill)

New TW Information You may view your new Testing Worksheet, but it must first be activated before others at your company may view it, and before it may be used for testing To have your new TW activated, select the Submit for Registration Approval button from any tab within the Testing Worksheet Changes to existing TWs may be viewed immediately TWs will be ‘view only’ starting at 5:00 PM CPT on Flight Deadline

Scripts/ Checklist

Commonly Used Testing Terms Script – Individual tasks required for each scenario in a step-by-step layout Actual Date – Current calendar date Simulated Date – Date earlier than current calendar date that enables the TDSP to use production data (previously used) for testing

Contacts View Testing Contact Information for: LSEs TDSPs ERCOT PUCT

ERCOT Challenge TX SET (encoded documents used in defining transactions for business data interchange) is an acronym that stands for: A. Texas Strange Extra Terrestrial B. Texas Sorts Electric Transmission C. Texas Standard Electronic Transactions D. Texas Standard Emission Test Answer – C

ERCOT Challenge What section of the website must be filled out by May 14, 2008 at 5:00 p.m. CPT? Answer – Testing Worksheet (TW)

ERCOT Challenge What must I do every workday during Flight 0608 at 2:30 p.m. CPT? Answer – Log into the daily conference call

Questions?

TTPT The TTPT evaluates market processes defined by ERCOT Protocols, other RMS Working Groups, and PUCT Rulemakings to establish testing requirements and materials necessary to validate those processes among Market Participants TTPT consists of the following sub-teams: –Script sub-team –Documentation sub-team –Other Focus Groups as needed The TTPT develops and maintains testing processes and related testing standards for the MPs directly involved in the testing process.

Texas Market Test Plan (TMTP) The processes and procedures for testing are defined in the Texas Market Test Plan Guide as follows: Select Texas Market Test Plan (TMTP) or Select Committees and Groups Under Retail Market Subcommittee (RMS), Select Texas Test Plan Team (TTPT) Under Key Documents, Select TMTP Document

TTPT Participation Participation in TTPT meetings allows your entity a chance to offer suggestions for improvement of the testing process New Market Participants are strongly encouraged to attend the scheduled TTPT meetings while your entity is testing through Flight Continued participation in TTPT is a valuable opportunity for your company to keep up to date on Market changes and upgrades

How Do I Sign Up For Mailing Lists? Go to If you have a ListServ password –Select Log In –Enter your address and password –Select Log In If you do not have a ListServ password –Select Log In –Select the link, get a new LISTSERV password –Enter your address, password, verify your password –Select Register Password –A confirmation will be sent to you –Open the and select the link within the

How Do I Sign Up For Mailing Lists? To Subscribe to a Mailing List –Select Subscriber’s Corner tab –Search Options, select Show All Lists from the drop down, click the search button –A list of the mailing lists will appear –Select the box next to the mailing list that you would like to subscribe to –Select Subscribe from the drop down box. This box is located at the bottom of the screen –Select Submit Upon completion of these steps, you will receive s from

How Do I Sign Up For Mailing Lists? To UnSubscribe to a Mailing List –Select Subscriber’s Corner tab –All mailing lists that you currently subscribe to will appear –Select the box next to the mailing list that you would like to unsubscribe to –Select Unsubscribe from the drop down box. This box is located at the bottom of the screen –Select Submit Upon completion of these steps, you will receive s from

ERCOT Meeting Calendar A link to Market meetings and meeting material may be found as follows: Select View Calendar Select the Month of the Meeting Select the link for the Market meeting

Meeting Agendas and Notes/Minutes Prior to attending a meeting, individuals may review the meeting agenda and supporting documents from the ERCOT Calendar, as well as RSVP to the meeting

ERCOT Meeting Calendar If you plan to attend the meeting in person, please RSVP to the meeting by clicking on the RSVP link.

TTPT Meetings Next regularly scheduled TTPT meeting is: TBD All TTPT meetings allow dial-in participation as follows: –Number: (800) –Passcode:

A Final Note… TTPT is the forum for testing standards and testing issue resolution by Market Participants REMEMBER! Input from every Market Participant is vital; not only to the success of the individual company, but also to the success of the Market as a whole.

Scripts Overview

Scripts Approach Script tasks are delineated by Day and are designed to mimic production business processes Business Processes or Transaction Lifecycles can be tracked by color or by Lifecycle number Transactions that close a business process scenario will be the color of the lifecycle they are closing Initiating transactions must be sent on the Day required by the script Market Participants should not hold response transactions unless the script specifies that the transactions be held

Scripts Naming Convention MOU - MOU/EC TDSP Territory SCR - IOU TDSP Territory STK - Stacking Script TDSP - New TDSP CON - Connectivity Script ACK - Functional Acknowledgement Script EMR - Emergency Test Script

Texas Retail Market Test Scripts

TX SET V3.0 All documents related to the TX SET V3.0 can be found at: Select Market Rules Select Guides Select Texas SET Guides Select Current Texas SET Implementation Guides

Questions?

TDSP Issues Experienced During Previous Flight Testing

TDSP Issues Experienced Banking Issues –Experienced difficulty obtaining the refund information from the CRs related to SCR33 (I.e. – ACH- Bank or Check). Need EFT filled out and faxed back prior to test day 14 Notification Issues –MPs not sending notification s when sending transactions PGP versus GPG Issues –Be aware of encryption method being used –Ad-hoc key expirations

TDSP Issues Experienced On a positive note: Daily conference call always on time and with a set agenda each date Daily testing goals are satisfied each day ERCOT does a good job of sending notification s

Texas Retail Testing Requirements and Expectations

Methodology Highlights of script methodology Some scripts use simulated LSEs with testing LSEs to execute required functionality Not all scripts carry through to billing When possible, contingencies are built into the scripts in the event a MP falls behind and is required to retest –NOTE: This does not apply to all scripts Failure to consistently meet checkpoints will result in escalation to Executive Contacts

Questions?

TX SET V3.0 Flight 0608 Timeline & Next Steps

Next Steps: New LSEs The deadline to register for the next test flight is: 5 p.m. CPT on Wednesday, May 14, 2008 Prior to deadline, New LSEs must: –Submit the ERCOT LSE Application –Submit the $500 LSE Application Fee –File for PUC REP Certification (Not required for MOU/EC) –Complete TW to communicate intent to test –Notify ERCOT of intent to test via once TW has been submitted –Notification must include company legal name and DUNS

Next Steps: Existing MPs The deadline to register for the next test flight is: 5 p.m. CPT on Wednesday, May 14, 2008 Prior to deadline, Existing Market Participants must: –Submit an UPDATED TW –Notify ERCOT of intent to test via once TW has been updated Notification must include company legal name and DUNS

Market Timeline Supporting Flight 0608 Flight Schedule for Version 3.0 Flights in ActivityCalendar Date Notice from ERCOT Retail Client Services of the next flight for Retail Market Testing sent to ERCOT lists.ercot.com distribution April 9, 08 TTPT to finalize scriptsApril 30, 08 Testing Worksheets are unlockedMay 7, 08 FLIGHT DEADLINE The following 4 steps must be completed by 5pm cpt. on the deadline: 1.CR must have submitted ERCOT LSE Application and Application Fee 2.CR must have filed for PUC REP Certification 3.TW updated on ERCOT Retail Testing Website 4.Send an of intent to test to ERCOT at: The following steps must be completed by 5pm cpt. on the deadline for current MPs: 1.TW updated on ERCOT Retail Testing Website 2.Send an of intent to test to ERCOT at: Testing Worksheets are locked at 5pm cpt. May 14, 08

Market Timeline Supporting Flight 0608 ERCOT Retail Client Services verifies that each new Testing Participant has completed Registration testing requirements with ERCOT May 16, 08 Verification and communication from PUCT Staff that Testing Participants intending to test have applied for REP Certification May 16, 08 Communication from ERCOT Flight Administrator of Testing Participants to each TDSPMay 16, 08 Communication of Test Certificates from ERCOT Retail Client Services to all Testing ParticipantsMay 19, 08 TDSPs and ERCOT have completed communication of connectivity testing schedule to each Trading PartnerMay 19, 08 Connectivity Testing kick-off Conference Call - Mandatory for all Testing Participants (blackout ends)May 20, 08

Market Timeline Supporting Flight 0608 Connectivity Testing begins for all Testing ParticipantsMay 20, 08 Penny Test (CON52) & ACK55/56 (FA Scripts) begins for all New Testing ParticipantsMay 20, 08 TDSPs communicate Test bed load to Trading Partners and ERCOTJune 9, 08 Flight Kick off Conference Calls - Mandatory for all Testing ParticipantsJune 13, 08 Daily Conference Calls begin – Day 1 Transactions flowJune 16, 08 Flight tentatively scheduled to concludeJuly 29, 08 Contingency Testing scheduled to conclude for Flight (blackout starts)August 19, 08 * The testing schedule may change if there are Texas Set changes or a version upgrade

Certification Letters Upon notification to Retail Client Services from the Flight Administrator, New Market Participants will receive their ERCOT Certification letter when they have successfully completed testing and met all Registration requirements –This will allow the Certification Letter to be filed with the PUCT in accordance to Substantive Rule (i) (2) (B) Existing Market Participants testing new TDSP territories, new business functionality, and/or adding an additional DUNS will receive their ERCOT Certification Letter upon completion of the Flight. Market Participants testing for Change of Service Provider will not receive an ERCOT Certification Letter upon completion of the Flight.

Testing to Production Checklist Please refer to the Testing to Production Checklist for Production requirements. The Testing to Production Checklist will advise your entity of the next steps that must be taken to enter into Production with ERCOT and your Trading Partners (TDSPs) Select Services Select Registration and Qualification Select Load Serving Entities Select the Texas Retail Market Testing and latest test flight link Under Key Documents

Testing to Production Transition REMINDER: A Qualified Scheduling Entity (QSE) must be designated as part of the completion for your LSE Application.

Training Opportunities Information regarding Training Opportunities offered by ERCOT may be found as follows: Select Services Select Training Select the link of the Training Opportunities you are interested in

Training Opportunities The link allows you to: –View currently offered training classes –Register for training classes –Withdraw from training classes A User Name and Password are required to register for the classes You may Create An Account if you do not already have a Login The Login allows only that individual to sign up for the class

Retail Training Opportunities ERCOT Retail 101: Understanding the Tools of the Texas Retail Market –This is a one day course that begins with a broad discussion of ERCOT’s history, current roles, and how ERCOT communicates in the Market. Also covered is the Working Group committee structure (with emphasis on Retail committees) as well as what Texas SET transactions are and how they flow between Market Participants. Presentations will also include the Renewable Energy Credits Program. There is opportunity to learn more about the tools available in the Texas Retail Market, with breakout sessions specific to MarkeTrak, Reports and Extracts, and the Texas Market Link.

Retail Training Opportunities ERCOT Retail Market Participant Workshop –Resolving Inadvertent Gain Issues – Members of the Inadvertent Gain Task Force have developed a high-level course on Resolving Inadvertent Gain Issues. The training will cover the following topics: PUCT Substantive Rule § Unauthorized Change of Retail Electric Provider, New Performance Measures Requirements, Retail Market Guide Section 7.2 Inadvertent Gain Process which includes Reinstatement Dates, Backdated Billing, Valid/Invalid Inadvertent Gain Issues and TDSP Processes –MarkeTrak - This course will provide a detailed demonstration of day-to-day use of the tools utilized by the Texas Retail Market. This will include a detailed training on how to use the MarkeTrak tool.

Training Documentation You may obtain copies of training presentations through the ERCOT website as follows: Select Services Select Training Select the course description Select appropriate Key Documents

Training Dates The ERCOT Retail 101 and Workshop Training Courses are offered once a quarter The next available ERCOT Training courses will be offered as follows: –ERCOT Retail 101 – May 15, 2008 –Retail Market Participant Workshop- May 16, 2008.

Wholesale Training Opportunities ERCOT NODAL 101 Training –This is a online course –ERCOT Nodal 101, a high-level eight-hour one-day course, explores the major changes required to move ERCOT from a zonal market to a nodal market and is available in both classroom and online formats. Locational Marginal Pricing (LMPs) Adjustment Period and Real-Time Operations Day Ahead Operations Congestion Revenue Rights (CRRs) Settlements –To Register for ERCOT NODAL 101: Select Training Select Nodal Courses