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WMS Report TO TAC. January 2007. In Brief. Two Working Group Reports Two Task Force Reports One PRR proposal (PRR701) Protocol Discussion by the IMM Retired two Task Forces and created one Discussed Emergency Interruptible load. Working Group Reports CMWG. - PowerPoint PPT Presentation
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WMS Report TO TACWMS Report TO TAC
January 2007January 2007
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In BriefIn Brief
Two Working Group ReportsTwo Working Group Reports Two Task Force ReportsTwo Task Force Reports One PRR proposal (PRR701)One PRR proposal (PRR701) Protocol Discussion by the IMMProtocol Discussion by the IMM Retired two Task Forces and created Retired two Task Forces and created
oneone Discussed Emergency Interruptible loadDiscussed Emergency Interruptible load
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Working Group ReportsWorking Group ReportsCMWGCMWG
Third Quarter report on congestionThird Quarter report on congestion Review of CSC flow control by Review of CSC flow control by
operationsoperations
Update on Competitive Constraint Update on Competitive Constraint determination due in Januarydetermination due in January
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Working Group ReportsWorking Group ReportsDSWGDSWG
Progress report on goalsProgress report on goals Status of the PUC work on Demand Status of the PUC work on Demand
SideSide Issues of LaaR participation in RRSIssues of LaaR participation in RRS
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PRR 701PRR 701Enabling of Stranded Enabling of Stranded
Capacity During AlertsCapacity During Alerts
Concept surfaced during EILP Concept surfaced during EILP discussions.discussions.
Not responsive to TAC & PUC requestNot responsive to TAC & PUC request WMS supported it on its own meritWMS supported it on its own merit Comments filed in supportComments filed in support In the PRS process nowIn the PRS process now
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ERCOT Staff PresentationsERCOT Staff Presentations
IMM lead discussion on potential IMM lead discussion on potential market confussion regarding sections market confussion regarding sections 6.4.2(5) RPRS and 6.5.10(10) OOMC6.4.2(5) RPRS and 6.5.10(10) OOMC
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Task Force ReportsTask Force Reports
Emergency Interruptible Load Emergency Interruptible Load Task Force (EILTF)Task Force (EILTF)
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EILTF BackgroundEILTF Background
Sept. 15 – ERCOT proposes Emergency Sept. 15 – ERCOT proposes Emergency Interruptible Load programInterruptible Load program
Oct. 6 – TAC charges WMS to develop EIL Oct. 6 – TAC charges WMS to develop EIL PRRPRR
Oct. 18 – WMS creates EILTF to develop Oct. 18 – WMS creates EILTF to develop EIL product as a new Ancillary ServiceEIL product as a new Ancillary Service
Oct. 31-Nov. 27 – EILTF or its subgroups Oct. 31-Nov. 27 – EILTF or its subgroups (app. 40 participants) meet 10 times to (app. 40 participants) meet 10 times to develop draft PRRs creating EILSdevelop draft PRRs creating EILS
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WMS Discussion and ActionWMS Discussion and Action
EILTF presented 4 draft PRRsEILTF presented 4 draft PRRs Options A and B – capacity modelsOptions A and B – capacity models Options C and D – energy modelsOptions C and D – energy models
Other issues discussedOther issues discussed Tradeoff between low cost and effective Tradeoff between low cost and effective
participationparticipation Tradeoff between high participation and Tradeoff between high participation and
ease of administrationease of administration Need for EILS vs. other approachesNeed for EILS vs. other approaches
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WMS Discussion and ActionWMS Discussion and Action
Motion to focus on energy-only Motion to focus on energy-only designdesign Motion carried – 75.6% in favorMotion carried – 75.6% in favor
Motion to file Option DMotion to file Option D Motion carried – 86.3% in favorMotion carried – 86.3% in favor
WMS directed EILTF to file PRR 703, WMS directed EILTF to file PRR 703, but did not endorse PRR 703.but did not endorse PRR 703.
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PRR 703PRR 703 EILS created as new EECP Step 3EILS created as new EECP Step 3
Loads volunteer to interrupt during Loads volunteer to interrupt during emergency conditions for an offer priceemergency conditions for an offer price
EILS deployed after LaaRs but before firm EILS deployed after LaaRs but before firm load sheddingload shedding
Last EILS offer cleared sets MCPE for both Last EILS offer cleared sets MCPE for both loads and resourcesloads and resources
EILS offers subject to system HCAPEILS offers subject to system HCAP EILS dispatched via hotline call to QSEsEILS dispatched via hotline call to QSEs
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PRR 703PRR 703
Qualification / PerformanceQualification / Performance Must be able to communicate one-Must be able to communicate one-
minute usage data to ERCOTminute usage data to ERCOT Must be able to reduce load within 10 Must be able to reduce load within 10
minutes to 95% of the offered amount minutes to 95% of the offered amount struck by ERCOTstruck by ERCOT
Must have IDR metersMust have IDR meters Offers in 1MW increments onlyOffers in 1MW increments only
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PRR 703PRR 703
Qualification / PerformanceQualification / Performance Must be able to communicate one-Must be able to communicate one-
minute usage data to ERCOTminute usage data to ERCOT Must be able to reduce load within 10 Must be able to reduce load within 10
minutes to 95% of the offered amount minutes to 95% of the offered amount struck by ERCOTstruck by ERCOT
Must have IDR metersMust have IDR meters Offers in 1MW increments onlyOffers in 1MW increments only
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PRR 703PRR 703
ImplementationImplementation EILTF envisions largely manual EILTF envisions largely manual
implementation process to accommodate implementation process to accommodate ERCOT’s requested April 1 effective dateERCOT’s requested April 1 effective date
EILS stack can be composed on EILS stack can be composed on spreadsheetspreadsheet
MCPE can be manually set following EILS MCPE can be manually set following EILS deploymentdeployment
EILS deployment is by phone callEILS deployment is by phone call
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Other PRRsOther PRRs
PRR 702 filed by supporters of capacity-PRR 702 filed by supporters of capacity-model design developed in EILTF but model design developed in EILTF but rejected by WMSrejected by WMS
ERCOT PRR to be filed soonERCOT PRR to be filed soon ERCOT expressed concern whether ERCOT expressed concern whether
stakeholders will approve either EILS optionstakeholders will approve either EILS option ERCOT expressed concern whether either ERCOT expressed concern whether either
EILS option can be implemented by April 1.EILS option can be implemented by April 1.
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ERCOT EILS PRRERCOT EILS PRR
EILS procured by ERCOT in 4-month EILS procured by ERCOT in 4-month increments (2-month initial period)increments (2-month initial period)
Provides capacity paymentProvides capacity payment Paid as bid, no clearing pricePaid as bid, no clearing price Propose cap of $X/yr for total EILS costPropose cap of $X/yr for total EILS cost Some load flexibility to schedule Some load flexibility to schedule
unavailabilityunavailability
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Jan. 18 PRS PreviewJan. 18 PRS Preview
PRR 701PRR 701 Alternative/supplement to EILS?Alternative/supplement to EILS?
PRR 702PRR 702 Capacity modelCapacity model
PRR 703PRR 703 WMS-endorsed energy only modelWMS-endorsed energy only model
ERCOT PRRERCOT PRR Bilateral contract capacity payment modelBilateral contract capacity payment model