Market Readiness Seminar #5

Market Readiness Seminar #5

July 28, 2010Market Readiness Seminar #5

Remaining Market Trials Activities


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Agenda

• NATF Update – Discussion on Remaining Market Trials Activities

• High Level Review of Changes

• Recap of 24-Hour Full System Market Kick Off

• August Market Trials Activities

• September Market Trials Activities

7/28/2010 Market Readiness Seminar #5

NATF Update – Discussion on Remaining Market Trials Activities


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Review of NATF Feedback

• ERCOT reviewed the 168-Hour test Handbook at the 7/8/2010 NATF

• Discussion turned toward the origins of the test and what value ERCOT and the Market could glean from such a test

• The main theme of the discussion was that more focus needed to be on closed loop testing and reviewing DAM solutions more deeply

• Key notes of interest– ERCOT nor NATF agreed to cancel the 168-Hour test – just re-visit it – The goal is to remain flexible and adaptive to ensure we are getting the most value from the

Market Trials activities

• Action from NATF was for ERCOT to re-visit activities planned for September

• Objective for today– Review the result of the previously mentioned action item from NATF– Field internal questions / concerns about the remainder of Market Trials


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High Level Review of Changes

• Scope of today’s discussion will cover the remainder of Market Trials

• Following is a high level review of what to expect for the remainder of Market Trials (specifics to be detailed in later slides).

• CRR and Outage Scheduler• CRR will be running a monthly auction and an annual auction in August• Outage Scheduler will continue to receive realistic submissions / edits from the market

• Note that after 8/16 the Outage Scheduler transition plan goes into effect

• Settlements and CMM will run daily based on MT Activities

• August High Level Description of Changes• Increased Full System Market and Reliability test (formally Full System Market and Reliability or

Closed Loop)• Renamed this test to be a more inclusive description of all components that are exercised

• Day Ahead Market tests will focus on the quality of solution • Including ERCOT analysis of focused DAM solutions (1-2 per week) • Decreasing quantity of DAM tests to support further analysis

• Including one 7 day period of consecutive DAM tests• Exercise weekend processes and procedures• Provide a more representative performance test for settlements by including 24x7 HRUC• Provide more representative exposures from credit as well as provide the Market an

opportunity to observe exposure levels after a weekend

• September High Level Description of Changes• Will include a multi-day Full System Market and Reliability test• The remainder of the month will include place holders for additional Day Ahead Market tests as

well as at least 1 Full System Market and Reliability test


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High Level Review of Changes: Options to be Reviewed with the Market for Multi Day Test

Multi Day (less than 7) Closed Loop RTM / LFC; DAM/RUC Open Loop

168-Hour Closed LoopDAM/RUC Open Loop

168-Hour Closed LoopDAM/RUC Closed Loop

• Multi-Day Full System Market and Reliability Test (less than 7 days)

• DAM/RUC executed, but open loop• Use established Zonal protocols for

settlements during closed loop test

• 7 day Full System Market and Reliability Test

• DAM/RUC executed, but open loop• Use established zonal protocols for

settlements during closed loop test

• 7 day Full System Market and Reliability Test

• DAM / RUC executed, and closed loop

• Work with the Market to define a settlement process to reflect

Benefits / Costs Benefits / Costs Benefits / Costs

Benefits• Minimal financial exposure to MPs• Distributes MP's team members

more evenly for support of additional testing in September

• Employs established Protocol language for settlements

Cost• Does not exercise systems over a

full week• Does not exercise the DAM and

RUC commitments in full closed loop

Benefits• Exercises Systems over a full week• Moderate financial exposure to

MPs• Employs established Protocol

language for settlements

Cost• Does not exercise the DAM and

RUC commitments in full closed loop

• Concentrates MP's testing activities into an elongated testing period

• Managing dual systems over an extended period

Benefits• Exercises Systems over a full week• Exercises the DAM / RUC

commitment processes

Cost• Unknown financial impact to MPs• Concentrates MP's testing activities

into an elongated testing period• Requires protocol change and

development of a settlements process

• Managing dual systems over an extended period

• Selection of resources based on test data, whereas payment will not be based on same data


24-Hour Full-System Market and Reliability Test Update


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24-Hour LFC Update

24- Hour Full-System Market and Reliability Test • Timeline– The 24-Hour Test will begin on Aug 3rd, 4th or 5th (proposing a start time of 12pm on the

day of the test)

• Market Notices– A Market Notice will be sent July 26 to confirm the upcoming 24-Hour test scheduled

to start August 3rd, 4th or 5th – A follow-up Market Notice will be sent two days prior to the actual test to confirm the

specific date– A final Market Notice will be sent on the day of the test to confirm that the test will be

conducted that day

• On the day of the test, a hotline call will be made to communicate the start time of the test (approximately 2-3 hours prior to start)

• A WebEx conference will be provided to allow Market Participants to monitor the Test—an email with WebEx details will be sent to Nodal Transition Project Managers the week of the test

• ERCOT and Market Participant staff should be available and ready to field troubleshooting calls at 8am on the first day of the test

• A System Wide VDI will be issued immediately prior to the start of the test


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24-Hour LFC Update

24- Hour Full-System Market and Reliability Test (continued)

• Proposed Tuning Windows

– ERCOT system-tuning windows:

• Window One: 4 – 6 PM (on the starting day of the test)

• Window Two: 6 – 8 AM (on the ending day of the test)

• Note: Any adjustments to the timing of these tuning windows will be communicated as the windows draw near

– Market Participant system-tuning windows:

• Proposing that MPs who wish to perform system tuning do so during times that do not overlap with the following test activities:

– ZonalNodal /Nodal Zonal switchover activities

– Operational scenarios

– ERCOT system tuning windows


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August Market Trials Activities

Week of Aug 2, 2010• 24 Hr Full System Market and Reliability test (operational scenarios and tuning to be

defined)• DAM run only for operational days of the Full System Market and Reliability tests• RUC run for operational days of the Full System Market and Reliability tests (HRUC run

as frequently as possible – goal is hourly)

Week of Aug 9, 2010• DAM will run continuously for 7 consecutive days starting on 8/9/2010 through 8/16/2010• DRUC and WRUC will run per protocols for all 7 days. • HRUC will run 24x7 for all 7 days• Operational scenarios as defined by MT and Training team

Week of Aug 16, 2010• Full System Market and Reliability Test will be conducted with the duration based on the

results of the 24-Hour test (operational scenarios and tuning to be defined)• DAM run only for operational days of the Full System Market and Reliability tests• RUC run for operational days of the Full System Market and Reliability tests (HRUC run

hourly)• QSEs and TSPs begin maintaining outages for September and post Go-Live

Week of Aug 23, 2010• DAM run up to 5 times• RUC run w/ DAM (HRUC run at least once daily and more based on operator training

needs)• Operational scenarios as defined by MT and Training team• QSEs and TSPs continue maintaining outages for September and post Go-Live


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August / September Market Trials Activities

Week of Aug 30, 2010• Multi-day Full System Market and Reliability Test (Go-Live rehearsal)• DAM run for each operational day of the test• Generation cut over to Nodal 2pm the day prior to first operational day• DRUC / WRUC run per protocols• HRUC start at 1800 the day before the first operational day and continues hourly throughout test• Generation returns to Zonal at 2pm the last operational day of the test• Will exercise change of month, change of day• Other operational scenarios to be defined• If test spans 9/1/2010, the model load scheduled for that date will be delayed until after the test

Week of Sept 6, 2010• DAM run up to 5 times• RUC run w/ DAM (HRUC run at least once daily and more based on operator training needs)• Settlements and Credit run daily• Operational scenarios as defined by MT and Training team• QSEs and TSPs continue maintaining outages for September and post Go-Live

Week of Sept 13, 2010 through Week of Sept 27• Placeholder for additional LFC testing as deemed necessary

• There will be at least one more test that will test ERCOT’s ability to perform a fail-over and model load while controlling the grid

• DAM run for operational days of the LFC tests• If no LFC test in either week, DAM will run up to 5 times containing operational scenarios

deemed necessary to repeat• QSEs and TSPs continue maintaining outages for September and post Go-Live


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What’s Next

• What’s next in Market Facing Testing Activities Post September?

• Although Market Trials officially ends on Sept 30, 2010, ERCOT will be conducting Market facing tests

• Verification of late system patches that occur on both the ERCOT and Market Participant systems

• Ensure that systems are ready prior to the Go-Live sequence• Will include a combination of closed and opened loop tests

• October and November will be focused on Cutover activities which will supersede any planned Market Facing tests

• If this occurs ERCOT will reschedule those Market Facing tests as appropriate• Details of these activities will be shared at the 8/31/2010 NATF and the subsequent

Friday Market Call


Market Readiness Seminar Update

Nodal Cutover Update


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Nodal Cutover and Market Transition

Agenda

• Key Cutover Milestones • Major Cutover Activities – 4 Month Lookout• Cutover Communications Method• Discussion


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Nodal Cut-Over and Market Transition

• Topics That Will Be Covered TodayKey Cutover Dates - 4 Month Look Out (NMMS, CRR, OS, Credit, S&B, MMS)High-Level TimelineCutover Communication MethodUpcoming Events

• Topics That Will Not Be Covered Today•Beyond 4 Month Look Out (details) •Post Go-Live Activities•Contingency Plans•System Decommissioning/Retirement Plans


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04/21/23

Cut-Over Milestones


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Nodal Cutover and Market Transition – Key Cut-Over Milestones

Key Cut-Over Milestones

Network Model

Nodal Protocol Section 3.10 goes into effect (Sept. 1)• TAC Approval – July 1 (July 20)• Board Approval – July 20• Market Notice – July 30

Congestion Revenue Rights

Nodal Protocol Section 7 goes into effect (Oct. 13)• TAC Approval – August 5• Board Approval – August 17• Market Notice – September 13

Outage Scheduler

Nodal Protocol Section 3.1 goes into effect (Nov. 1)• TAC Approval – August 5• Board Approval – August 17• Market Notice – October 1

Full Nodal Operations

Nodal Protocol Sections 3, 4, 5 and 6 go into effect as well as all other unimplemented Protocol Sections (Nov. 23)

• TAC Approval – October 7th • Board Approval – October 19th • Market Notice – October 23rd


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04/21/23

Key Cutover Activities4 Month Look Out


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Cut-Over Timeline – 4 Month Look Out

7/28/2010 Market Readiness Seminar #54 Month Lookout

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Functional Area

Task Plan

Data Prep

Decommission/Retirement Template

Contingency/Back-out Template

May June July Aug Sept Oct Nov Dec

Cut-Over Monthly Outlook – August

Key Cut-Over Activities for August 2010•(08/01) Model: Begin network modeling timelines

•(08/13) OS: Outage Scheduler Zonal to Nodal Import process run

•(08/13) CRR: Last day to register for CRR December monthly auction

•(08/16) OS: ERCOT releases Outage Scheduler to Market

•(08/16-09/17) OS: Market Participants synchronize / verify outages in the Nodal Outage Scheduler to the Zonal Outage Scheduler for Outages effective during and after December 2010

Network Model Outage Scheduler Congestion Revenue Rights

Entities InvolvedERCOTTSPREsCRRAHQSE

Impacts•TSPs/REs submit Transmission and Resource data for December model (05_Nodal_Load_transition_1_0.doc posted on 06/01 NATF Materials)•Resource outages will NOT be imported during Zonal to Nodal import into Outage Scheduler•CRRAH must register by deadline to be eligible to participate in the December Auction (Protocol 16.8.2)•TSPs/QSEs can begin entering outages in Outage Scheduler via Web Service or UI •TSPs/QSEs are responsible for verifying outages imported to Nodal Systems and correcting any missed outages or incorrect outages by 09/17/2010

Functional Area


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Key Cut-Over Activities for September 2010

• (09/01) Model: Network Model Go-Live

• (09/01) Model: Deadline to submit Model changes for Month of December

• (09/02) Model: Begin interim update process

• (09/13) CRR: ERCOT publishes CRR Activity Calendar to MIS

• (09/17-12/01) OS: Outages are synched. Market Participants maintain outages in both the Zonal and Nodal Outage Scheduler for outages effective December and beyond.

Network ModelOutage SchedulerCongestion Revenue Rights

Functional Area


Cut-Over Monthly Outlook – September

Entities InvolvedERCOTTSPREsCRRAHQSE

Impacts•TSPs / REs that submit Model changes to ERCOT by 09/01 will be applied prior to Go-Live

•From 09/02 forward until Go-Live any Model changes submitted to ERCOT for application prior to Go-Live will leverage the interim update process.

•MPs can retrieve the CRR Activity Calendar from MIS public with a valid Digital Certificate


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Impacts

•MIS unavailable from 10/03-10/11 for production reconfiguration**

•CRRAH able to retrieve ACLs from CRR system each business day.

•MPs can post additional collateral until 11/08/2010 for Dec 2010 CRR Auction

•MPs able to start retrieving Go-Live postings on MIS. Refer to EMIL for dates per posting. More information in August workshop

•Dec 2010 CRR Model available on MIS

•Dec 2010 Monthly Auction Notice available on MIS

Functional Area

Network ModelOutage SchedulerCongestion Revenue RightsCredit


Cut-Over Monthly Outlook – October

Key Cut-Over Activities for October 2010

• (10/01) CRR: CRR system data clean up for Go-Live

• (10/01) Credit: ERCOT assesses each CPs credit worthiness for the Dec CRR Auction

• (10/02) OS: First pull of December Outages for CRR Network Model

• (10/02) Model: Network Model built for PCRR Allocation

• (10/03-10/11) MIS: ERCOT PERFORMS PRODUCTION RECONFIGURATIONS ON MIS**

• (10/13) OS: December Outages pulled for CRR Auction Model

• (10/13) Model: Model built for CRR December Auction


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Impacts

•MIS unavailable from 10/03-10/12 for production reconfiguration

•CRRAH able to retrieve ACLs from CRR system each business day.

•MPs can post additional collateral until 11/08/2010 for Dec 2010 CRR Auction

•MPs able to start retrieving Go-Live postings on MIS. Refer to EMIL for dates per posting. More information in August workshop

•Dec 2010 CRR Model available on MIS

•Dec 2010 Monthly Auction Notice available on MIS

Functional Area

Network ModelOutage SchedulerCongestion Revenue RightsCredit


Cut-Over Monthly Outlook – October

Key Cut-Over Activities for October 2010

• (10/13-10/18) CRR: ERCOT begins accepting PCRR Nominations for December Monthly Auction

• (10/15-11/15) Model: Model posted to MIS and Market Participant begin validation process

• (10/26) CRR: ERCOT shall allocate PCRRs to NOIEs for the 2010 December Monthly Auction and publish to MIS

• (10/26) CRR: ERCOT shall post CRR Network Model for the 2010 December Monthly Auction to MIS

• (10/28-11/08) Credit: ERCOT posts ACLs daily for CRR December monthly auction to CRR

• (10/29) CRR: ERCOT to post December 2010 Monthly Auction Notice to MIS


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Cut-Over Monthly Outlook – High-Level Remaining Outlook to Go-Live

**Tentative dates that will be firmed up with details in the next month

October10/12 MIS Portal will be presenting production data postings and applications – (refer to MIS – ERCOT Market Information List v8.20 posted on Nodal.ercot.com for specific dates)

November 11/04/10 ERCOT sends notification to NOIE's regarding Open Date for Nominations for Jan 2011 Allocation11/05/10 January 2011 Monthly PCRR Allocation nomination window opens11/08/10 ERCOT to Lock CRR Credit and Send First Non-Zero ACL Data to CMM11/08/10 December 2010 CRR Auction Lock Date11/08/10 Deadline for Market Participants to post additional collateral for December 2010 Monthly Auction11/09/10 00:00:01 CPT December 2010 Monthly CRR Auction Bid window opens11/11/10 23:59:59 CPT December 2010 Monthly CRR Auction Bid window closes11/12/10 December 2010 Monthly CRR Auction begins execution11/12/10 January 2011 Monthly PCRR Allocation nomination window closes11/15/10 December 2010 Monthly CRR Auction Results published to Market11/16/10 December Monthly 2010 CRR Auction Invoice published to Market11/19/10 17:00 CPT Payment Due for December 2010 Monthly CRR Auction Invoices11/19/10 ERCOT allocates PCRR to NOIEs for the January 2011 Monthly Auction11/19/10 January 2011 CRR Network Model published to Market11/22/10 ERCOT pay CRRAH owed from December 2010 Monthly CRR Auction11/23/10 ERCOT to Release ACL (TPE and ACL Reports Available on MIS)11/23/10 ERCOT to publish ACL to CRR system for January Auction11/23/10 Day-Ahead Market Submission Opens11/24/10 January 2011 Monthly Auction Notice published to Market


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Starting October 1, 2010, the ERCOT Nodal Production Environment will be undergoing a series of preparation activities required for Go-Live. Planned Market Facing test will remain flexible during this period to accommodate Cutover activities. Additionally, while ERCOT is not performing a Market Facing test, environment availability will remain flexible as well.

Exceptions to this are as follows:– Any system that has entered into a production mode. If these systems must be

taken offline, ERCOT will notify MPs via a Market Notice. • Examples are Nodal Outage Scheduler, CRR Application or Network Model

Management System (NMMS ).

– Telemetry will remain in place and online from both ERCOT and MPs. – During Market facing tests, the Nodal Production environment will remain

available unless otherwise communicated by ERCOT.

Cut-Over Production Environment Availability


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04/21/23

Cut-Over Communication Plan


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Nodal Cutover and Market Transition – Communication Plan

Friday Market Calls Starting 08/27/2010 at 9AM-12noon these calls will be combined, without breaks, into a single Market Trials and Cut-over Activities call

Market Participants should plan on attending the full duration of this call as it will provide the primary means of communication between ERCOT and the Market.

Information and materials covered in this call will continue to be posted to the ERCOT calendar website every Friday at the following URL: http://www.ercot.com/committees/nodal/mt/

Monday Kick-Off Calls As needed to review the cutover activities for the week

Market Notices and Market Participant Contact ListsERCOT will continue to leverage Market Notices to communicate pertinent information that is required to be consumed by the Market as a whole.

Market Participants employees can subscribe to the Market Notices on the ERCOT Lists website at the following URL: http://lists.ercot.com/scripts/wa-ercot.exe?HOME.Market Participants may verify their contact information on file with ERCOT through their assigned Whole Client Services Representative.


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Nodal Cutover and Market Transition – Communication Plan (Cont.)

Market Participants Contacting ERCOT

•Market Trials email inbox: [email protected]. This inbox will continue to be maintained throughout Nodal Cutover. This will serve as a “catch-all” forum for questions if there is any doubt as to where a question should be submitted.

•Friday Market Calls: In line with the previously mentioned schedule, these Market Calls not only serve as the primary means for ERCOT to communicate to the Market, but also for MPs to field general questions concerning the Nodal Cutover plan.

•ICCP email inbox: [email protected] for specific MP questions regarding their Nodal ICCP / Telemetry, this email address should be leveraged for the fastest response.

•ERCOT Wholesale Client Services Account Manager: Whenever possible MPs should leverage the Market Trials email inbox, however, MP’s Wholesale Client Services Account Manager will also be equipped to either answer your questions or route you to the correct support personnel.

•Nodal Advisory Task Force (NATF): NATF will serve as a forum for initially reviewing changes in activities during the ERCOT Nodal Cutover, NPRRs and any concerns from the Market that would impact the overall Cutover plan. To that end, NATF will be meeting more frequently to ensure expedient coverage of these types of issues. Details regarding meeting agendas and materials from past meetings will continue to be maintained at the following URL: http://www.ercot.com/committees/board/tac/natf/


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Nodal Cutover and Market Transition – Communication Plan (Cont.)

Go-Live Communication StrategyPurpose and Objectives •Maintain reliable grid operations during the Go-Live period•Maintain constant interaction to respond quickly and effectively to issues that arise during the go-live period•Respond and report any observed anomalies in market performance or behavior

Go-Live Period Communication•Market Calls•Daily and at times hourly conference calls between ERCOT and Market Participants will start, at a minimum, two days prior to Go-Live. ERCOT will set up the logistics of the calls and communicate via a Market Notice and the Cutover Handbook

Stabilization Period Communication•Market Calls•Post DAM Daily Market Calls

•Daily Issue / Inquiry •Wholesale Client Service Reps•ERCOT Helpdesk

**More details and updates on the Go-Live Communication plan to be presented in the coming months


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Nodal Cutover and Market Transition – Upcoming Events

Event Agenda Date Location

Nodal Market Call

Combined Market Trials and Cutover call between ERCOT and Market Participants begins

Aug. 279am-12pm

Conf. Call/Web Ex

NATF - Nodal Cutover Update

Remaining and updated Go-Live Activities for October, November, December (Credit, Settlements, Extract/Postings, Registration, MMS, MIS, etc.)

Aug. 319:30am-3:30pm

ERCOT Austin Room 206B

NATF – Nodal Cutover Update

Post Go-Live Activities for January, February, March, and Reversion Plan

Sep. 289:30am-3:30pm

ERCOT Austin Room 206A


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Next 60-days of Nodal Classes/Workshops

Course Start Date Location

Day-Ahead Workshop Follow Up July 29 ERCOT (Taylor)

Transmission 101 August 3 ERCOT Met Center (Austin)

Basic Training Program August 10 Calpine (Houston)

NPRR206 E-Factors Workshop August 10 Hilton Austin Airport (Austin)

ERCOT Nodal 101 August 10 ERCOT Met Center (Austin)

Basic Training Program August 10 Calpine (Houston)

Network Model/Outage Scheduler Workshop (new)

August 10 ERCOT (Taylor)

Load Serving Entity 201 August 16 Reliant Energy (Houston)

Market Settlements 301 August 17 City of Garland Fire Administration Building (Dallas)

Network Model/Outage Scheduler Workshop (new)

August 18 ERCOT (Taylor)

GCPA Retail Workshop August 19 Centerpoint (Houston)

28 July 2010

Enrollment at: http://nodal.ercot.com/training/courses/index.html

Market Readiness Seminar #5

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Next 60-days of Nodal Classes/Workshops - continued

Course Start Date Location

NOIE QSE Operations August 20 City of Garland Fire Administration Building (Dallas)

Congestion Revenue Rights August 24 University of Delaware (Newark, DE)

Generation 201 August 25 University of Delaware (Newark, DE)

Congestion Revenue Rights August 31 ERCOT Met Center (Austin)

Generation 201 September 1 Hilton Austin Airport (Austin)

Economics of LMP September 13 ERCOT Met Center (Austin)

ERCOT 101 for Wind Generation September 13 Optim Energy (Dallas)

ERCOT Nodal 101 September 14 StarTex Power (Houston)

Generation 101 September 15 Hilton Austin Airport (Austin)

Basic Training Program September 20 LCRA (Austin)

Load Serving Entity 201 September 27 ERCOT Met Center (Austin)

Enrollment at: http://nodal.ercot.com/training/courses/index.html

28 July 2010 Market Readiness Seminar #5


Credit Transition to Nodal(Preliminary)


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Topics

• Credit Cutover Overview• December 2010 CRR Auction held in November• January 2011 CRR Auction held in December• Approach for estimating initial exposure in CMM• Preliminary Credit Cutover Timeline

Market Readiness SeminarJuly 28, 2010

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Credit Cutover Overview

• Nodal Protocol Section 16.11 on Credit will light up for the December 1 operating day (16.11.4.6.1 Credit Requirements for CRR Auction Participation will light up beginning with the December 2010 CRR Auction)

– Prior to that, credit requirements need to be established for the December 2010 CRR Auction held in November

• Plan to handle similarly to the current Zonal TCR Auctions• Separate collateral posted• Available Credit Limits (ACL) viewable in CRR, not MIS

– Credit Reports will begin being posted on Tuesday, November 23rd

• To support the January 2010 CRR Auction held in December• In preparation for the first DAM run on November 30th


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Establish ACLs for December 2010 CRR Auction

• ERCOT Credit will verify creditworthiness of CRRAHs by October 1, 2010

• CRRAHs that meet Creditworthiness Standards and are assigned unsecured credit will notify Credit staff of how much unsecured credit (other than that used for QSE activity) to assign to the December 2010 CRR Auction (if any) between October 28 and November 8

• CRRAHs that do not meet the Creditworthiness Standards but wish to participate in the December 2010 CRR Auction will:

– Send collateral specifically earmarked for the December 2010 CRR Auction to ERCOT via wire transfer between October 28 and November 8

• The combination of posted collateral and unsecured credit allocated by the CRRAH will be the ACL provided for the CRR Auction


December 2010 CRR Auction held in November

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View ACLs prior to December 2010 CRR Auction• ACLs will be viewable in the CRR Application beginning October 29, 2010

– ACLs will be viewable only by CRR Account Holders and Counter-Parties and only in the CRR Application leading up to the December CRR Auction (e.g. not on MIS).

• December 2010 CRR Auction bid submission window opens on November 9, closes on November 11, and the CRR Auction begins execution on November 12

After the CRR Auction has executed• Auction results posted in CRR Application and on MIS on November 15• PCRR and CRR Auction invoices are posted on MIS by November 16 (before

midnight)• CRR Auction invoice payments are due by November 19 by 5:00 PM (CST)• ERCOT to pay CRR amounts on November 22


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Release of CRR collateral / Ongoing collateral requirement for CRR obligations

• Once invoices are paid, CRR collateral or unsecured credit is released and may be refunded, with the following consideration

– CRR Obligations - An amount equal to the greater of the ACPE component of the FCE calculation and the Auction Clearing Price (ACP) will be held as collateral for FCE until ACLs are produced by CMM

– CRR Options - No collateral will be retained


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January 2011 CRR Auction held in December

Establish ACLs for January 2011 CRR Auction– ERCOT Credit will verify creditworthiness of CRRAHs prior to the auction– ACLs will be set in CMM

• Initial exposures will be calculated using available Zonal data until Nodal data becomes available (see next page)

View ACLs prior to January 2011 CRR Auction– ACLs will be viewable from CMM Credit Reports posted to MIS beginning

November 23, 2010 and in the CRR Application beginning November 24, 2010– January 2011 CRR Auction bid submission window opens on December 7,

closes on December 9, and the CRR Auction begins execution on December 10

After the CRR Auction has run

– Timelines for posting Auction results and CRR Auction invoices are per Nodal Protocols

– CRR Auction invoice payment requirements are per Nodal Protocols

Release of CRR collateral / Ongoing collateral requirement for CRR obligations– Release of CRR collateral and ongoing collateral requirements for CRR

obligations are per Nodal Protocols


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Approach for establishing the initial exposure in CMM

• Overview

– Utilize Zonal data to the extent possible to establish initial TPE

– CRR Obligations from December 2010 auction will be collateralized at the greater of the ACPE component of the FCE calculation and the Auction Clearing Price (ACP)

– CRR Options will not have value initially (until DAM values are available)


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Approach for establishing the initial exposure in CMM


Key Components Transition

A Estimated Aggregate Liability (EAL)- "Core" collateral calculation

Highest ADTE - estimate of historical and projected RT activity (See Note) Calculated using Zonal data with Nodal data rolled in as available

OUT - outstanding historical activity (invoiced and estimated) Calculated using Zonal data with Nodal data rolled in as available

DALE - projected DAM activity Calculated beginning with the first DAM invoice

IEL - Initial Estimated LiabilityAn IEL will be established for Counter-Parties entering the Nodal market (with no Zonal activity) as required by the Nodal Protocols.

B Aggregate Incremental Liability (AIL)- Reasonableness test for ADTE for RT activity Calculated using Zonal data (est total load/gen, bilaterals, etc) until

Nodal data is available

C Future Credit Exposure (FCE)- Forward value of CRRs held

CRR Obligations - 1) prior to Nov 23 - the higher of the ACPE or ACP and 2) after Nov 23 - as calculated by CMM (initially similar to 1) above)

CRR Options - 1) prior to Dec 1 - no value and 2) after Dec 1, the normal FCE calculation

Note: If a Counter-Party believes that their BES activiity in Zonal is not representative of their RT activity in Nodal, ERCOT will consider adjusting their ADTE to reflect anticipated Nodal activity once DAM activity has occurred.

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Preliminary Credit Cutover timeline

• Thursday, November 18th – Zonal invoice published – last Zonal EAL credit calculation from which a collateral call will be made (system

will be maintained through Go Live and will be available for a period beyond Go Live)

• Friday, November 19th – Nodal CRR auction invoice payments due

• Tuesday, November 23rd – Post first Nodal Credit Reports and send ACL to CRR and DAM

• No collateral calls sent based on these reports

• Wednesday, November 24nd

– Last Zonal NLRI credit calculation from which a collateral call will be made (system will be maintained through Go Live and will be available for a period beyond Go Live)

• Thursday / Friday, November 25th / 26th – Thanksgiving holiday


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Preliminary Credit Cutover timeline

• Monday, November 29th – – Zonal invoice published– First Nodal credit calculation from which a collateral call will be made

• For example, collateral may be required based on AIL activity (e.g. Zonal NLRI data)

• Will exclude Zonal invoice from November 29th from the calculation

– send ACL for initial DAM (afternoon)

• Tuesday, November 30th – initial DAM

• “e” factors set at 1/0/1

– Second Nodal credit calculation • Will include Zonal invoice from November 29th in the calculation

• Wednesday, December 1st – “Go Live”



Documents

Market Readiness Seminar #5