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Processing Large Volumes814_20s

Issues / Discussion / Ideas

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Background of Issue

• At May TX SET and June RMS – TXU ED brought forward questions related to processing large volumes of 814_20s.

• Request of TXU ED at June RMS – – Establish a task force to:

• Establish future volumes and processing requirements

• Evaluate current TIBCO project to determine capabilities

• Determine options for increasing ERCOT processing

• Explore other transactions or other Market Notification processes

• At June RMS – ERCOT said we would discuss internally and bring back ideas to help RMS leadership determine next steps.

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Large Volumes / Business Reasons

• Potential business reasons for large volumes of 814_20s– All TDSPs - Annual Validation

– All TDSPs - T & C’s requirements for duplicate address clarifications

– All TDSPs - Retirement of temporary accounts (volumes may vary by TDSPs)

– TXU ED - Rate Expansion – approx. 3,000,000 accounts (weekend conversion)

– TXU ED - On going conversion of AMR project over next 5 years

– TXU ED - Future rate and franchise changes processes

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Current Processes

• Load Profiling Guide outlines the process for annual validations. The TDSP and ERCOT work together on schedule to process large volumes– For 2006 – approx 867,000 will be sent

• Approx 200,000 per weekend – across 4 weekends (Fri/Sat/Sun/Mon)

– Future volumes expected to drop to approximately 300,000 per year

– ERCOT process capabilities for 814_20 maintenance transactions are currently between 25K to 50K transactions daily.

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Ideas to Consider

• Draft protocol language to address large volumes for business reasons other than annual validation – may want to consider the plan of coordination between TDSPs and ERCOT

• After protocol changes are approved, then ask TX SET to look at – New file format for large volumes of 814_20 maintains to be sent in 'mass

update file' to load at ERCOT

– New file format for large volumes of 814_20 maintains to be sent to CRs to communicate ‘mass update file’

– Additional type of 814_20 maintain – separate out information that needs to be sent to ERCOT or CR only

• Ask ERCOT for additional analysis after implementation of TIBCO, (in Jan 2007) with volumes and timings

• After Nodal system design, explore processing window changes (uncouple from batch)