QSE Managers Working QSE Managers Working GroupGroupMeeting NotesMeeting Notes

15 January, 201015 January, 2010

Report to WMS Report to WMS

20 January, 201020 January, 2010

David Detelich - ChairpersonDavid Detelich - Chairperson

QMWG Topics QMWG Topics

Chair and Vice Chair (Vote) Chair and Vice Chair (Vote) Review 30 minute NSRS deploymentsReview 30 minute NSRS deployments WGRPP Forecast Accuracy Update WGRPP Forecast Accuracy Update Zonal RPRS unit de-selectionZonal RPRS unit de-selection PRR841 Revise Total ERCOT Wind Power ForecastPRR841 Revise Total ERCOT Wind Power Forecast Load Forecasting Accuracy Load Forecasting Accuracy Definition of WGRDefinition of WGR SCR757, Real Time Wind Production by ZoneSCR757, Real Time Wind Production by Zone PRR833, Primary Frequency Response requirement from PRR833, Primary Frequency Response requirement from

Existing WGRsExisting WGRs Draft PRR: Decommitment process for RUCDraft PRR: Decommitment process for RUC

Chair and Vice chairChair and Vice chair

David DetelichDavid Detelich Jeremy CarpenterJeremy Carpenter

Review 30 minute NSRS deploymentsReview 30 minute NSRS deployments

12/1/09, 12/9/09 & 12/12/0912/1/09, 12/9/09 & 12/12/09 Triggered by adjusted responsive reserve Triggered by adjusted responsive reserve

below 2500 MWbelow 2500 MW Morning schedule change, slow units and Morning schedule change, slow units and

up regulation depleted.up regulation depleted. Only units at or above LSL can count Only units at or above LSL can count

towards ARR.towards ARR.

Protocol SectionsProtocol Sections

6.7.4 Deployment of Non-Spinning Reserve Service

(1) ERCOT shall deploy 30-Minute Non-Spinning Reserve Service (30MNSRS) when it expects Balancing Energy Services to be depleted but not before it predicts more than ninety-five percent (95%) of the Balancing Energy Service Up available, including Balancing Energy Service Up bids representing BES-Capable Non-Spinning Reserve Service (BESCNSRS), for the Operating Hour will be deployed.

(2) ERCOT shall deploy BESCNSRS capacity that is represented by Balancing Energy Service bids as Balancing Energy Service.

(3) ERCOT may, in its sole judgment, deploy 30MNSRS as necessary.

5.6.6.2 General Procedures Prior to EEA Operations

Prior to declaring EEA Level 1 detailed in Section 5.6.7, EEA Levels, ERCOT shall:

(1) Start RMR units available in the time frame of the emergency. RMR units should be loaded to full capability;

(2) Issue Dispatch Instructions to QSEs to suspend any ongoing ERCOT required generating unit or Resource performance testing;

(3) Utilize available Resources providing 30-Minute Non-Spinning Reserve Services (30MNSRS) that can be deployed to increase Responsive Reserves; and

Graph from IMMGraph from IMM

WGRPP Forecast accuracy WGRPP Forecast accuracy analysisanalysis

Raw data supplied by ERCOTRaw data supplied by ERCOT November showed improvementNovember showed improvement December had increased errorDecember had increased error

About 60 WGR are providing good MET About 60 WGR are providing good MET datadata

QMWG asks that metrics presented to QMWG asks that metrics presented to TAC be supplied to QMWGTAC be supplied to QMWG

Zonal RPRS unit de-selectionZonal RPRS unit de-selection

Notice soon, Target date is February 1Notice soon, Target date is February 1stst

Quick start units will be de-selected from RPRS Quick start units will be de-selected from RPRS deploymentsdeployments Based on list of qualified quick start unitsBased on list of qualified quick start units No notice will be givenNo notice will be given Capacity will not be replacedCapacity will not be replaced

Endorsed by IMMEndorsed by IMM Proper representation of units in Resource PlanProper representation of units in Resource Plan Energy only market efficiencyEnergy only market efficiency

PRR841 Revise Total ERCOT PRR841 Revise Total ERCOT Wind Power Forecast (TEWPF)Wind Power Forecast (TEWPF) QMWG reviewed comments from ERCOTQMWG reviewed comments from ERCOT QMWG recommends that WMS endorse QMWG recommends that WMS endorse

PRR841 with ERCOT comments.PRR841 with ERCOT comments.

Load Forecast AccuracyLoad Forecast Accuracy

Questions on the RPRS monthly reports Questions on the RPRS monthly reports will be addressed with Robbie Stapleswill be addressed with Robbie Staples

QMWG assembled a list of questions and QMWG assembled a list of questions and topics for a workshoptopics for a workshop

QMWG recommends that WMS take the QMWG recommends that WMS take the list to TAC requesting a Load Forecasting list to TAC requesting a Load Forecasting Workshop. Workshop.

Definition of WGRDefinition of WGR

TAC assignment based on PRR830.TAC assignment based on PRR830. Unit & resource – applies to a grouping of virtual Unit & resource – applies to a grouping of virtual

units.units. AGWR – Aggregated Wind ResourcesAGWR – Aggregated Wind Resources

Aggregating for testing purposesAggregating for testing purposes Walter Reid developing OGRR and PRR’sWalter Reid developing OGRR and PRR’s QMWG to review next meetingQMWG to review next meeting

Question on how many new WGR’s will be created.Question on how many new WGR’s will be created. Task force may be needed for implementation issuesTask force may be needed for implementation issues

SCR757, Real Time Wind SCR757, Real Time Wind Production by ZoneProduction by Zone

Revise language for post Nodal Revise language for post Nodal implementationimplementation

Does the market need data separatedDoes the market need data separated By Load ZoneBy Load Zone OtherOther

Review next month if alternatives are Review next month if alternatives are developed developed

PRR833, Primary Frequency Response PRR833, Primary Frequency Response requirement from Existing WGRsrequirement from Existing WGRs

Review comments from E.ON and NextEraReview comments from E.ON and NextEra Issues and comments to be reviewedIssues and comments to be reviewed

How to select the turbines for relays.How to select the turbines for relays. Capacity Capacity What if turbines are out for maintenanceWhat if turbines are out for maintenance

Operational and schedulingOperational and scheduling How to bring back on lineHow to bring back on line HSL for Nodal HSL for Nodal

Wait for comments from PDCWGWait for comments from PDCWG

Decommitment process for RUCDecommitment process for RUC

No action.No action.

Next meetingNext meeting

Next Meeting: February 3, 2010Next Meeting: February 3, 2010 TopicsTopics

Wind generation forecast accuracy Wind generation forecast accuracy calculationscalculations

Load Forecasting AccuracyLoad Forecasting Accuracy Definition of WGRDefinition of WGR SCR757 Real Time Wind ProductionSCR757 Real Time Wind Production Decommitment process for RUCDecommitment process for RUC Wind Generation Nodal IssuesWind Generation Nodal Issues