• PRR650, Balancing Energy Price Adjustment Due to Non-Spinning Reserve Service Energy Deployment (Vote)*

• Nodal Protocol Revision Requests:
  • NPRR001, Section 1, Zonal PRR Synchronization and ERCOT Staff Clarifications (Vote)*
  • NPRR003, Section 5, Zonal PRR Synchronization and ERCOT Staff Clarifications (Vote)*
  • NPRR004, Section 8, Zonal PRR Synchronization and ERCOT Staff Clarifications (Vote)*
  • NPRR005, Section 7 ERCOT Staff and TPTF Clarifications (Vote)*
  • NPRR006, Section 4 ERCOT Staff Clarifications (Vote)*
  • NPRR007, Section 9 Zonal PRR Synchronization and ERCOT Staff Clarifications (Vote)*
• Protocol Revision Requests:
  • PRR653, OOME Ramp Rate Adherence (Vote)*
  • PRR669, Timing of Calculation of RPRS Under Scheduled Charge- URGENT (Vote)*
  • PRR670, First Available Switch Date (FASD) for Switch Requests- URGENT (Vote)*
  • PRR666, Modification of RPRS Under-Scheduled Capacity Charge Calculation- URGENT (Vote)*
  • PRR667, RPRS Uplift Charge and Under Scheduled Charge Correction- URGENT (Vote)*

• TPTF Report*
• ERCOT Report*
  • Approve Roles of Market Participant
    Executive (Vote)*
• Post Nodal Implementation Plan (Possible Vote)*

• RMGRR035, Updates to Retail Market Guide (RMG) for MarkeTrak (Vote)*
• RMGRR036, Retail Market Transaction Processing Service Availability (Vote)*
• RMGRR037, Submission of Switch Requests during a Mass Transition Event (Vote)*
• SCR748, Website Enhancements for ERCOT Outage Notifications (Vote)*

• Draft PRR Update, CPS1 Scaling Factor
• Nodal Assignments
  • Co-optimization Recommendation (Possible Vote)*

• OGRR179, Under-Voltage Load Shedding Protection (Vote)*
• Hurricane Preparedness Drills*
• Hurricane Lessons Learned*
• Nodal Assignments
  • Telemetry Standards (Vote)*
  • State Estimator Standards (Vote)*

• LPGRR012, Process for Load Profiling Guide Revisions (Vote)*
• LPGRR013, Annual Validation Business Timeline Adjustment (Vote)*
• LPGRR014, Profile Decision Tree Modification and Approval Process (Vote)*
• LPGRR015, Profile Model Evaluations and
  Changes (Vote)*
• COPS Recommendation for ERCOT Communication with Market Participants during EECP Events (Possible Vote)*

• Load Forecasting Methodology Forum Update*
• AEPTCC/MEC Western Region Project (Vote)*
• Q&A on May Scores Related to SCE Performance and Monitoring*

Open Action Items from Previous Meeting(s)

Responsible Party

• Emergency Demand Service - Demand Side Working Group

• Review of Cost Benefit Analysis (CBA) Methodology and Process

• WMS to look at long-term solutions to market issue of LaaRs submitting bid prices less than zero to ensure participation in the RRS market

• ROS to continue examining Hurricane Rita and Lessons Learned and report back to TAC after May hurricane preparedness drills

• RMS to include retail outage statistics post-implementation of SCR745 in monthly report to TAC

• RMS and COPS Communications Working Group to review communication issues related to ERCOT December System Outage/Storage Failure and provide recommendations. In the interim, TAC and RMS should be notified of any system outage issues.

• TPTF to consider (1) Cost-Based offers in Transition Period to Nodal and (2) Implementation of Orders issued from Project 31540

• Review of Market Guides (use, naming convention, authority)

• TPTF to report back to TAC after NMMS business process document discussions with ROS and WMS.

Subcommittee Assignments for Nodal Action/Review

(Responsible subcommittee to provide monthly status reports to TAC):

• 3.1.1 ERCOT must work with the appropriate TAC Subcommittee to develop procedures for characterizing a Simple Transmission Outage. (Priority: Low)

• 3.10.7.4 The appropriate TAC subcommittee shall establish a task force that is open to Market Participants, comprised of technical experts to develop a set of Telemetry Criteria consistent with the minimum requirements of the Protocols. (Priority: High)

• 3.10.9 The appropriate TAC subcommittee shall establish a task force that is open to Market Participants, comprised of technical experts to develop a State Estimator Performance Standard consistent with the minimum requirements of the Protocols. (Priority: High)

• 3.19(2) An appropriate subcommittee approved by TAC may develop an alternative list through the analysis described below for determining Competitive Constraints. (Priority: Optional)

• 3.19(3) The TAC Subcommittee shall perform the following analysis with the goal of developing an objective standard for determining Competitive Constraints. (Priority: Optional)

• 5.61(4) The process for determining the verifiable actual costs must be developed by ERCOT, approved by the appropriate TAC subcommittee. (Priority: Low)

• 5.6.3(3) The process for determining the verifiable actual costs for a startup attempt under paragraph (2) above must be developed by ERCOT, approved by the appropriate TAC subcommittee. (Priority: Low)

• 6.5.7.6.1(2) ERCOT shall develop a methodology, subject to TAC approval, to determine the optimal frequency bias for given system conditions. (Priority: Low)

• 6.5.7.6.2.3(1) ERCOT shall develop a procedure approved by TAC to deploy Resources providing Non-Spinning Reserve Service. (Priority: Medium)

• 6.5.9.4.1(2)(b) ERCOT shall develop a procedure for determining which Load Resources to interrupt and to equitably allocate Load Resources to one of two deployment stacks to enable a 50% deployment, which procedure must be approved in advance by TAC. (Priority: Low)

• 7.2.1 The appropriate TAC subcommittee shall establish a task force that is open to Market Participants, comprised of technical experts, to develop a naming convention for CRRs consistent with the requirements of the Protocols. (Priority: Medium)

• 8.0 In some instances Section 8 requires ERCOT to develop other performance measures that must be approved by the TAC. (Priority: Medium)

• Determine whether co-optimization is feasible and beneficial to implement in the nodal wholesale market as approved by PUCT in Docket 31540.

• BOD AI - Give enhanced input to the BOD on the appropriate level of the fee for 2007.

• BOD AI - Develop a framework for determining whether to move ahead on future zonal market improvements.

• Develop a contact list of persons responsible for implementation at each QSE for use in critical communications and escalations.

• Review reserve margin calculation based on the following (1) previous year?s experience, (2) the forthcoming PUCT rulemaking on resource adequacy, and (3) issues raised by B Bojorquez in 5/4/06 CDR presentation to TAC.

• Provide a methodology by August TAC to establish the appropriate level for the scaling factor used in the SCE Performance Charge calculation as defined by PRR661.

• Create post Nodal implementation effectiveness evaluation plan

• Create PRR to address Ancillary Services re-qualification testing deadline.

• Expeditiously/urgently process the PRRs necessary to correct the RPRS settlement error in the Protocols equations in time for the June ERCOT Board meeting.

• Provide update on options for mitigating residual market credit risk at July TAC.

EECP Action Items:

• Review of EECP Steps

• Load forecasting methodology review forum

• Review of Resource plans and how related to EECP event

• Review of Settlement calculations specific to RPRS due to capacity insufficiency situation and OOM Replacement Reserve calculation

• Review of LaaR performance during April EECP event and whether other interruptible load responded.

• Communication review related to Emergency and Short Supply situations: When to communicate, what to communicate, to whom and how?

• Review of scheduling of planned generation outages