Commercial Operations Subcommittee Update to TAC April 9, 2009

Highlights of March 10th COPS Meeting COPS Communication WG Approved COPMGRR009, Planned Scheduled Release and Planned Maintenance Outage Notifications (TAC Voting Item) Updates Appendix A, Market Notice Communication Process Changes reflect ERCOT’s Retail Market IT SLA Planned Scheduled Release dates move from 2nd to 4th weekend Planned Maintenance Outage dates move from 3rd/4th Sunday to 1st/2nd Sunday and change their time from 8am-8pm (12 hrs) to 6am-9pm (15 hrs) Planned Maintenance Outage dates add a 3rd & 5th Sunday from 8am-8pm (12 hrs)

Highlights of March 10th COPS Meeting COPS Communication WG (Cont.) Approved COPMGRR010, Creating Section 12, Renewable Energy Credits (TAC Voting Item) This new Section provides MPs with a high level overview of the REC Program and references to rules, protocols, and a user guide. Approved the updated COPS Procedures document (TAC Voting Item) Adds the Settlement and Extracts Working Group (SEWG) and removes the old Commercial Protocol WG

Highlights of March 10th COPS Meeting Profiling WG ERCOT will accept 15 minute data from the Advanced Meter if the load research IDR is replaced Round 2 Load Research Sampling data collection ends Dec 31, 2009 60k Annual Validation Business 814_20s not an issue with the approx. 1 million 814_20s for the AMS ESI IDs could be Initial settled with profile data, then Final settled with Advanced Meter 15 minute data 1,938 combinations of load profile IDs, up from 1,634

Highlights of March 10th COPS Meeting Settlement & Extracts WG Approved leadership Jim Galvin – Luminant Heddie Lookadoo – NRG Report & Extract issues continue to decline 3 incidents during the mid Jan - Feb 2 incidents were TML outages lasting less than 30 minutes 1 was a late posting of extracts by 5 minutes Working with ERCOT to develop more formal process for ad hoc invoices

Highlights of March 10th COPS Meeting Summer 2008 Default Uplift Process is complete 1st uplift in Jan 09 was $2,500,000.00 2nd uplift in Feb 09 was $2,243,772.84 Total amount uplifted was $4,161,186.82 2008 Final Market Ops (MO) Project Financials Budget Funding of $1.32M $190k transferred from Retail Operations (RO) to MO to cover Advance Metering Implementation Team (AMIT) Study Spend of projects was $1.27M Budget Variance ~$52k

Voting Items COPMGRR 009, Planned Scheduled Release and Planned Maintenance Outage Notifications COPMGRR 010, Creating Section 12, Renewable Energy Credits Updated COPS Procedures Document

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