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EDS Market Call

Weekly Update

Mar 06, 2009


Texas Nodal

Antitrust Admonition

ANTITRUST ADMONITION

ERCOT strictly prohibits Market Participants and their employees who are participating in ERCOT activities from using their participation in ERCOT activities as a forum for engaging in practices or communications that violate the antitrust laws. The ERCOT Board has approved guidelines for members of ERCOT Committees, Subcommittees and Working Groups to be reviewed and followed by each Market Participant attending ERCOT meetings. If you have not received a copy of these Guidelines, copies are available at the Client Relations desk. Please remember your ongoing obligation to comply with all applicable laws, including the antitrust laws.


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Agenda

• Nodal market activity update• Day-to-day operations summary

– Planned and Unplanned ERCOT outages of EDS systems – Future dates of any system upgrades

• Standing reports and updates– Focused Input Testing – Nodal API sub-group – Reports/Extracts (first meeting of each month)

• Q&A / General Discussion• Deep Dive Topic (different topics each meeting as needed)

– External Interface Specification Version 1.18 Review

ERCOT asks that Market Participants log into the WebEx session using their company name and then their name. This will allow ERCOT to take roll-call offline


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Nodal Market Activity Update: EDS and Market Activities 2009

• UPDATE: EDS Program Schedule Update

– COMPLETE: Preliminary Nodal Integrated Schedule released

– COMPLETE: TAC initial review 12/4/08

– COMPLETE: TPTF initial review 12/10/08 3:30-5:30pm (WebEx) Materials: http://www.ercot.com/calendar/2008/12/20081210-TPTFNOD

– COMPLETE: TPTF detailed discussion on 12/16Materials: http://www.ercot.com/calendar/2008/12/20081215-TPTF

– COMPLETE: TPTF all day workshop on 1/07Materials: http://www.ercot.com/calendar/2009/01/20090107-TPTF

– COMPLETE: TPTF session Monday 1/12 in the afternoon continuing Tuesday 1/13 all dayMaterials: http://www.ercot.com/calendar/2009/01/20090112-TPTF

– COMPLETE : TPTF session 1/26 – continued discussions on the Nodal Integrated schedule Materials: http://www.ercot.com/calendar/2009/01/20090126-TPTF

– COMPLETE: TAC Presentation on 2/5 – TPTF has voted the new Nodal Schedule through to TAC. TAC Approved and forwarded to the ERCOT Board.Materials: http://www.ercot.com/calendar/2009/02/20090205-TAC

– COMPLETE Board Presentation 2/17 – Pending TAC approval, the Board approved both, the integrated schedule and Nodal Budget. It is now forwarded to the PUCT for their consideration.Additionally, ERCOT has begun executing on the UtiliCast Nodal Report #9 found here: http://www.ercot.com/content/meetings/board/keydocs/2009/0217/Cleary_-_Nodal_Report_9_Board_Presentation.ppt

– Note that the schedule and budget remain under review with the PUCT


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Day-to-day operations summary: Planned / Unplanned Outages of EDS

• Planned Outages– 3/1 (8am – 5pm) – Completed as scheduled

• Unplanned Outages– 2/20 – 2/27 – Wind Generation Potential Forecast / Performance

reports unavailable. Issue resolved with replaced certificate between ERCOT and vendor.

– 3/2/09 8:30 AM – 9:15 AM – LMP Reports unavailable. Server restart resolved the issue.

– 3/3 – Present – Sandbox “broadcast” notifications throwing errors preventing delivery to MP’s. We are investigating the issue with development. Presently, we have disabled email alerts (to MP’s) for failed notifications.


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Future dates of any system upgrades

• Reminders:– EIS version 1.18 is now available at

http://nodal.ercot.com/readiness/sandbox/documents/index.html

– EIS Version 1.18 deployment:• ERCOT is still on schedule to deliver this to the sandbox on 3/19/09• Note there is currently no plan to deliver Version 1.18 to the to EDS

Environment• Version 1.19 will be the next deployed to the EDS environment

– EIS Version 1.19 current schedule:• Specification to be published on 6/5/09• Sandbox deployment on 7/7/09• EDS deployment on 8/10/09


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Standing reports and updates: Focused Input Testing Update

• Next testing will take place 3/10 – 3/12• Next month’s dates will be added on our next EDS call (note there is no

change to the planned schedule)• Reminder: remaining FIT windows will only review telemetry and state

estimator convergence. SCED inputs will be removed from FIT until further notice.

ALL TIMES ARE CENTRAL

Duration Start date and time End date and time

27 hrs

(3x9)

March 10 - 8:00 am March 12 - 5:00 pm

27 hrs

(3x9)

March 24 - 8:00 am March 26 - 5:00 pm


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Focused Input Testing (FIT) III – State Estimator

FIT III Assessment reports will be posted at: http://nodal.ercot.com/readiness/eds3/documents/index.html

February 24, 2009

0102030405060708090

100

1 2 3 4 5 6 7 8 9

Test Hour

Co

nverg

en

ce %

February 25, 2009

0102030405060708090

100

1 2 3 4 5 6 7 8 9

Test Hour

Co

nverg

en

ce %

February 26, 2009

0102030405060708090

100

1 2 3 4 5 6 7 8 9

Test Hour

Co

nverg

en

ce %

Key Numbers 82.39% Test Average Convergence 9 of the 27 Test Hours had 100% Convergence

Notes State Estimator (SE) updates to certain

applications caused unexpected periods of SE downtime and affected convergence results

AREVA has since corrected the code, which should be in EDS for the next database load

The problem may still be a problem in next week’s FIT testing (sporadic)


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Other Updates

• Wind Telemetry Update– PRR794 Requires all wind telemetry to be communicated by zonal

protocols on 4/1/09– Market notice to be sent later this afternoon– Nodal dashboard and metrics will be updated to allow MP’s a view

of their compliance (EDS 1 Readiness Center)http://nodal.ercot.com/readiness/eds1/documents/index.html

• Registration Market Calls have resumed– Every Other Friday at 9:30 am opposite weeks of the EDS Market

Call– All Audit Reports for transmission data sent last night (3/5/09)


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Q&A

Q&A / Open Forum


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EIS Version 1.18 Review

External Interface Specification

Version 1.18 Review


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• 2.3.4 – Management and Use of Transaction IDs (mRIDs)– Updated the mRID key string for PTPObligation removing crrAHId– Added description for querying trades based on

otherPartySubmitted token

• 2.3.5 - Other Conventions– Updated ASType cross reference table– Renamed RRS_NCLR to RRSNC – Updated ASTypes for SelfArrangedAS removing RRSGN, RRSLD,

and RRSNC as they are covered under RRS


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EWS ASType Description Supported in

Off-Non-Spin Off Line Non Spin Load ASOffer, ASAwards

Reg-Down Regulation DownASOffer, ASAwards, SelfArrangedAS, ASTrade

REGUP-RRS-ONNS Regulation Up -RRS-Online non-spinASOffer, ASAwards

Reg-Up Regulation Up SelfArrangedAS, ASTrade

Non-Spin Non-Spin SelfArrangedAS, ASTrade

RRS Responsive Reserve Service SelfArrangedAS, ASTrade

RRSLD RRS Controllable Load Resource ASTrade

RRSNC RRS Non-controllable Load ResourceASTrade

RRSGN RRS Generation Resource ASTrade

• 2.3.6 – Precision information – New Section

– Added enforced Precision information – 1 decimal accuracy for MW and 2 for prices, etc.

• 3.3.2 - SelfArrangedAS

– Enumeration values RRSGN, RRSLD, and RRSNC removed in ASTypes

– Updated SelfArrangedAS submittals based on MMS4P6 changes – introduction of rrs_values


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• 3.3.4 – ASOffer

– Moved nonControllableLoadFlag to be within ASPriceCurve as it applies to every ASPriceCurve instance

• 3.3.5, 3.3.6, 3.3.12 – Trades

– Added otherPartySubmitted element to ASTrade, CapacityTrade, and EnergyTrade

• 3.3.14 - PTPObligation – MMS5P7

– Removed crrAccountHolderId from PTPObligation bid type

• 4.3.1 – AwardSet

– Removed HRUC/DRUC from MarketType as it does not apply to the various awards it holds


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• 4.3.1, 4.3.2 – AwardSet, AwardedAS - MMS4P6, MMS4P7– Added request/option of “SASM ID” for fetching AwardedAS and AwardSet for SASM mkt. – AwardedAS –

• Removed NCLRFlag as it is now nonControllableLoadFlag within the ASPriceCurve• Applied PriceTmPoint complex type to ASAwards MCPCs as it is a schedule

• 4.3.8 – LoadForecasts– Removed Forecast type and Zone name from Forecasted Load

• Zone, values could be– "WEATHER" - Load forecast for each weather zone– "LOAD" - Load forecast for each load zone– "SYSTEM" – Total load forecast for all zones combined (one value)

• 4.3.10 – MarketTotals– Removed ASOffers and ASTypes it only supports:

• Total energy bought in DAM• Total energy sold in DAM

• 4.3.11 SPPs– Added SettlementPointType to SPP data structure– Removed optional Bus Name for LMP and SP for SPP for input req. It returns all SPPs and

LMPs

• 4.3.12 – MCPCs– Added request/option of “SASM ID” for fetching MCPCs for SASM mkt.


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• 4.3.13 BindingConstraints– Changed request/option to request/MarketType for specifying Market Type for

Binding Constraints – Changed maxShadowprice to shadowPrice per CDR data structure – Added constraintID, fromStation, toStation, fromStationKV, toStationKV per CDR

data structure

• 4.3.14 SCEDViolatedConstraints– Removed request/marketType as SCED Violated Constraints are only provided for

RTM market.– Changed maxShadowprice to shadowPrice per CDR data structure – Added fromStation, toStation, fromStationKV, toStationKV per CDR data structure

• 4.3.15- ASObligations – Added request/MarketType (DAM/SASM) – Added request/option of “SASM ID” for SASM mkt

• 4.3.16 - DynamicRatings– Added “end time” to Dynamic Ratings as CDR supports short term historical

retrievals


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• 4.3.19 - LoadRatioShare – Removed "qse" from LoadRatioShare as the data is returned for the requesting qse

• 4.3.20 – CompetitiveConstraints– Removed MONTHLY or YEARLY. These are available for downloads from MIS portal

• 4.3.24– AggregatedASOfferCurves – Added request/option of Market type and SASM ID” for SASM mkt. – Removed request/asType as CDR reports returns for all ASTypes

• 4.3.25 - ASServicePlan – Removed request/asType as CDR reports return ASServicePlan for all ASTypes

• 4.3.27 - StartupShutdownInstructions – Added request/option=HRUC-Hour ending – To specify the desirable HRUC– Removed StartTime and EndTime from the request and added TradingDate - consistent with

Awards– Added “hourEnding” element holding the HRUC hour indicator in case of HRUC MarketType

• 4.3.29 – TotalEnergys– Added Settlement Point, consistent with duplicate interface of 4.3.10 – MarketTotals


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• 5.3.8 - ASAwards – Applied PriceTmPoint complex type to ASAwards MCPCs as it is a

schedule

• 11.2.1 Disputes– Updated table for Dispute Type, Sub-Type, and Charge Type Cross

Reference

• 12.0 VDIs– Changed the VDI to VDIs to handle multiple available VDIs– Updated the get request to hold the request/ID – – Separated the get and change operation tables.– Added otherInformation element to the VDI Info structure.

• Appendix C – Updated xsd files – including the change of files names of

ErcotMiscTypes.xsd and ErcotUtil.xsd to ErcotReport.xsd and ErcotReportTypes.xsd


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Q&A / OPEN FORUM


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Appendix


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Nodal Market Activity Update: EDS and Market Activities 2009(originally presented on 2/6/09)

JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

2009

Verifiable Costs

Training on NOMCR

Open loop test

Submission of Verifiable Costs for Resources (different dates for technologies)

Resource RegistrationPUNS Transmission asset registration

Telemetry and SEFocused Input Testing (Telemetry and SE) 7x24 ERCOT monitoring FIT w/ SCED begins

All QSEs re-qualify DAM submissions

Submission Testing

SCED & DAM Publish v1.19

Sandbox v1.19

MMS+v1.19+UI+MPIM SCED submissions begin

** Final dates are available in the Integrated Project Schedule

Network ModelSEM Go-Live Milestone

TSP model synchronization

TSP MOD training

COMS Extracts User Guide releaseReporting

“Get Reports” available

All other RE’s Transmission asset registration

QSEs w/ Res SCED re-qualification

NDSML and extract supporting documentation updates


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Standing reports and updates: Nodal API sub-group(originally presented on 2/6/09)

• TPTF Action – Report, by Transaction, Completion Confidence– Each Transaction will be classified into 3 confidence levels– RED – Confidence low – high risk of change in the 1.18 and/or 1.19

releases– YELLOW – Changes should be limited to non-structural changes

(e.g. enumeration changes)– GREEN – Any Changes will be limited to defects.– Note that if there are no changes in 1.18 and significant change in

1.19, a transaction will be marked as RED for both. It will retain that color until all changes are complete.


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Standing reports and updates: Nodal API sub-group (originally presented on 2/6/09)

EIS Section EIS Interface DescriptionEIS Version 1.18

EIS Version 1.19

3 Market Transaction Service

3.3.1. Three-Part Supply Offer3.3.2. Self-Arranged Ancillary Service Quantities3.3.3. Incremental and Decremental Energy Offer Curves3.3.4. Ancillary Service Offer3.3.5. Ancillary Service Trade3.3.6. Capacity Trade3.3.7. Congestion Revenue Rights (CRR) Offer3.3.8. Current Operating Plan (COP)3.3.9. DC Tie Schedule3.3.10. DAM Energy Bid3.3.11. DAM Energy-Only Offer3.3.12. Energy Trade3.3.13. Output Schedule3.3.14. PTP Obligation Bid3.3.15. Self-Schedule

4 Market Information

5 Notifications

5.3.1. Notices and Alerts5.3.2. Offer and Bid Set Acceptance5.3.3. Offer and Bid Set Errors5.3.4. Confirmed and Unconfirmed Trades5.3.5. Energy Offer Awards5.3.6. DAM Energy-Only Offer Awards5.3.7. DAM Energy Bid Award5.3.8. Ancillary Service Awards5.3.9. CRR Awards5.3.10. PTP Obligation Awards5.3.11. Ancillary Service Obligations5.3.12. Outage Notifications5.3.13. Startup/Shutdown Instructions5.3.14. Wind Generation Forecast5.3.15. DAM Ancillary Service Offer Insufficiency Report

Several changes in this area - will break out into


Texas Nodal

Standing reports and updates: Nodal API sub-group (originally presented on 2/6/09)

EIS Section EIS Interface DescriptionEIS Version 1.18

EIS Version 1.19

6 Acknowledgement of Alerts

7 Outage Scheduling Interfaces

7.2.1. Outage Creation7.2.2. Outage Query7.2.3. Outage Update7.2.4. Outage Cancellation

8 Utility Interfaces

8.2.1. Get mRID8.2.2. System Status8.2.3. Request Test Notification8.2.4. Change Active Notification URL

9 Reports9.1.1. Get Reports

10 Resource Parameter Transaction Service

10.3.1. Generator Resource Parameters10.3.2. Controllable Load Resource10.3.3. Non Controllable Load Resource10.3.4. Resource Parameters

11 Registration Interfaces11.2.1. Dispute Creation

12 Verbal Dispatch Instruction12.3.1. Verbal Dispatch Instruction Structure

Although no changes are anticipated for OS, there is 6-8 weeks until a stable product.

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