Protocol Revision Protocol Revision SubcommitteeSubcommittee

Report to the ERCOTReport to the ERCOT

Technical Advisory CommitteeTechnical Advisory Committee

January 8, 2004January 8, 2004

SummarySummary

• 7 PRRs recommended for 7 PRRs recommended for approvalapproval

• 2 PRRs require withdrawal to be 2 PRRs require withdrawal to be affirmedaffirmed

PRR 404 – Energy Procured PRR 404 – Energy Procured from ERCOTfrom ERCOT

• Protocols don’t currently address Protocols don’t currently address relaxed balance schedule (RBS) relaxed balance schedule (RBS) usage by resourcesusage by resources

• Previous RBS PRR addressed load Previous RBS PRR addressed load usage and credit requirementsusage and credit requirements

• ERCOT Credit Committee reviewed ERCOT Credit Committee reviewed PRR and recommended changes PRR and recommended changes after PRS recommended approvalafter PRS recommended approval

PRR 404 – Energy Procured PRR 404 – Energy Procured from ERCOTfrom ERCOT

• PRR impact on ERCOT business and PRR impact on ERCOT business and computer systems appears to be computer systems appears to be minimal although common use of minimal although common use of RBS could impact the amount of BES RBS could impact the amount of BES available to ERCOT and impact available to ERCOT and impact operationsoperations

• Effective upon ERCOT staffing Effective upon ERCOT staffing requirements being filledrequirements being filled

PRR 404 – Energy Procured PRR 404 – Energy Procured from ERCOTfrom ERCOT

• Credit Committee proposed changes Credit Committee proposed changes would review a QSE’s estimated net would review a QSE’s estimated net aggregate load and resource aggregate load and resource variance from schedule to determine variance from schedule to determine RBS useRBS use

• If net greater than 20%, then If net greater than 20%, then additional collateral would be additional collateral would be required by ERCOTrequired by ERCOT

PRR 461 – Confidential Exceptions PRR 461 – Confidential Exceptions for Reliability Analysisfor Reliability Analysis

• PRR addresses QSE data to be analyzed PRR addresses QSE data to be analyzed following a reliability eventfollowing a reliability event

• Lists data to be made available not earlier Lists data to be made available not earlier than 10 days following such an eventthan 10 days following such an event

• No business, computer, or operational No business, computer, or operational impacts; minor staffing impacts impacts; minor staffing impacts

• Effective February 1, 2004Effective February 1, 2004

PRR 467 – Elaboration on the PRR 467 – Elaboration on the Notice of ResettlementNotice of Resettlement

• PRR provides market with more PRR provides market with more information about resettlements, information about resettlements, such as the reason for such as the reason for resettlements and affected datesresettlements and affected dates

• Minor business practice impactMinor business practice impact

• Effective February 1, 2004Effective February 1, 2004

PRR 469 – Compliance for PRR 469 – Compliance for Competitive Metering & Load Competitive Metering & Load

ProfilingProfiling

• Conforms Protocols to PUCT rules Conforms Protocols to PUCT rules and rulingsand rulings

• Addresses TDSP, ERCOT and CR Addresses TDSP, ERCOT and CR responsibilities for sampling, TOU responsibilities for sampling, TOU schedules and DLCschedules and DLC

• Clarification - Minor business Clarification - Minor business practice impactpractice impact

• Effective February 1, 2004Effective February 1, 2004

PRR 470 – System Fuel PRR 470 – System Fuel AvailabilityAvailability

• Adds fuel availability as a factor Adds fuel availability as a factor for consideration in emergency for consideration in emergency conditionsconditions

• No business, computer, or No business, computer, or staffing; minor operational staffing; minor operational impactsimpacts

• Effective February 1, 2004Effective February 1, 2004

PRR 471 – NIDR to IDR Default PRR 471 – NIDR to IDR Default Profile ScalingProfile Scaling

• PRR scales the IDR default profile PRR scales the IDR default profile based on the last NIDR reading to based on the last NIDR reading to avoid variances in initial/final avoid variances in initial/final settlementssettlements

• Impacts ERCOT computer systems Impacts ERCOT computer systems (minor project)(minor project)

• Effective upon system Effective upon system implementationimplementation

PRR 473 – Reactive StandardsPRR 473 – Reactive Standards

• TAC previously adopted reactive TAC previously adopted reactive standards for inclusion into Protocolsstandards for inclusion into Protocols

• PRR includes payment mechanism for PRR includes payment mechanism for induction generators to make a payment induction generators to make a payment in lieu of meeting the standardin lieu of meeting the standard

• Impacts staffing (in ’04 budget) and Impacts staffing (in ’04 budget) and computer systemscomputer systems

• Effective February 1, 2004Effective February 1, 2004

PRRs for WithdrawalPRRs for Withdrawal

• PRR 293 – Uncontrollable Renewable PRR 293 – Uncontrollable Renewable ResourcesResources– Superceded by PRR 426’s approvalSuperceded by PRR 426’s approval

• PRR 455 – Liability for QSE PRR 455 – Liability for QSE Default/Responsibility for ERCOT Default/Responsibility for ERCOT Admin FeeAdmin Fee– Was split into two PRRs for Was split into two PRRs for

consideration at next PRS meetingconsideration at next PRS meeting

Requested TAC ActionRequested TAC Action

• PRRs For ApprovalPRRs For Approval– PRR 404 – Resource RBSPRR 404 – Resource RBS– PRR 461 – Reliability Analysis PRR 461 – Reliability Analysis

ConfidentialityConfidentiality– PRR 467 – Resettlement NoticePRR 467 – Resettlement Notice– PRR 469 – Competitive Metering/Load PRR 469 – Competitive Metering/Load

ProfilingProfiling– PRR 470 – System Fuel AvailabilityPRR 470 – System Fuel Availability– PRR 471 – NIDR to IDR Profile ScalingPRR 471 – NIDR to IDR Profile Scaling– PRR 473 – Reactive StandardsPRR 473 – Reactive Standards

Requested TAC ActionRequested TAC Action

• PRRs For Withdrawal AffirmationPRRs For Withdrawal Affirmation–PRR 293 – Uncontrollable PRR 293 – Uncontrollable

Renewable ResourcesRenewable Resources

–PRR 455 – Liability for QSE PRR 455 – Liability for QSE Default/ERCOT Admin FeeDefault/ERCOT Admin Fee