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DAM Settlement Timeline

DAM Settlement Timeline. Mandy Bauld. DAM Settlement & Invoicing Timeline. 2 Business Days. 1 Business Day. 4 Business Days. Operating Day. Payment Due for Invoice (to ERCOT). Payment Due for Invoice (to Market Participant). ERCOT Issues Day Ahead Statement & Invoice.

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DAM Settlement Timeline

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  1. DAM Settlement Timeline Mandy Bauld MCWG/SEWG

  2. DAM Settlement & Invoicing Timeline 2 Business Days 1 Business Day 4 Business Days Operating Day Payment Due for Invoice (to ERCOT) Payment Due for Invoice (to Market Participant) ERCOT Issues Day Ahead Statement & Invoice

  3. Discussions Regarding DAM Timeline Acceleration • Accelerate DAM Statements & Invoices posting timeline • ERCOT S&B impacted • Settlement uses RTM data • Risk associated with allowing only 1 business day to receive remaining data inputs, run DAM settlements, validate DAM settlements, validate DAM statements & invoices, and post DAM statements & invoices • Reducing the posting timeline leaves little to no room for error and increases the risk that data errors may not be resolved prior to posting • Accelerate DAM Invoice payment timeline • ERCOT S&B not impacted (unless the acceleration results in DAM short pays because market participants struggle to meet the accelerated timeline)

  4. Use of RTM Data in DAM Settlements • Day-Ahead Make Whole Payment (Eligibility) • Telemetered Resource Status - Settlements utilizes the Real Time Telemetered Resource Status from EMS to check the Resource’s eligibility for the Day Ahead Make Whole payment (PR 4.6.2.3) • Data available from EMS ‘Op Day + 1’ at ~ 1:00 am • CRR Settlement • Output Schedules & Telemetered Generation – settlement of PCRR Options and Obligations with Refund use Output Schedules or Telemetered Generation when determining the target payment, the derated amount, and the hedge value • Data available from EMS ‘Op Day + 1’ at ~ 1:00 am • RTSPP – CRR Shortfall calculations require early calculation of the RTM settlement of Options and Options with Refunds which requires RTSPP in addition to the data mentioned above • Data available from MMS ‘Op Day + 1’ at ~ 2:00 am

  5. DAM Settlement & Invoicing Timeline Tentative schedule for running DAM Settlements: • Note the timing for EMS and RTM data required for DAM settlement (Op Day + 1) • Recognize that processes could be delayed or prolonged when running a “full” batch (all settlement channels for both Zonal and Nodal DAM & RTM) • This tentative production schedule for integration and processing timelines will be more robustly tested in Market Trials and is subject to change if necessary to achieve more optimal performance of any of the integration or settlement jobs

  6. In Summary • Accelerate DAM Statements & Invoices posting timeline • Protocols as currently written require RTM data to be used in DAM settlement (Sections 4 and 7) • RTM data isn’t available to S&B until ‘Op Day + 1’, therefore DAM settlements can’t occur or be validated until ‘Op Day + 1’ • If DAM posting were to occur on ‘Op Day + 1’ the quality and timeliness of the DAM statements and invoices is at risk

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