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ERCOT Profiling Working Group Update: May 9, 2018

Stay informed about the latest updates from the ERCOT Profiling Working Group meeting on May 9, 2018. Topics include Default Profiles for RES and BUS, Annual Validation process revisions, and visibility of Distributed Generation for BUSIDRRQ.

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ERCOT Profiling Working Group Update: May 9, 2018

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  1. Profiling Working Group Update to COPS May 9th, 2018 Sheri Wiegand (TXU) – Chair Sam Pak (Oncor) – Vice-Chair

  2. 2018 Annual Validation

  3. Default Profiles – RES • RESIDENTIAL ESIs current profile distribution by weather zone

  4. Default Profiles – BUS • BUSINESS ESIs current default profile is BUSMED • Current profile distribution of NIDR meters With the Sharyland/Oncor transition, does the larger population of BUSMEDLF ESIs represent the default profiles for the new Oncor ESIs created or were historical profiles considered?

  5. Default Profiles – BUS • BUSINESS NIDR Changes for 2018 Annual Validation • The Sharyland/Oncor ESIs would not have been included in the AV process due to lack of historical consumption for ERCOT review. • Plotting of the default profiles for BUSHILF, BUSMEDLF, and BUSLOLF are to be made to determine possible impact of new default profile.

  6. Annual Validation Proposed Process Revisions • Joint TDSP proposal for streamlining AV process… • Business ESIs reviewed annually • Residential ESIs reviewed every 3 years • (all TDSPs to process same year) Market Participants, including ERCOT, are asked to review the proposal to determine if changes will impact any business processes such as forecasting, procurement, pricing/quoting, etc. before an LPGRR is drafted.

  7. Visibility of Distributed Generation for BUSIDRRQ • First Steps… • For existing ESIs with < 1 MW of DG (unregistered)… • ERCOT provided a list of respective BUSIDRRQ ESIs to each TDSP noting any associated Resource IDs (RIDs) • TDSPs determined if an existing Interconnection Agreement (IA) existed • UPDATE: • TNMP- has no ESIs • AEP – 14 ESIs • CNP - <60 ESIs • Oncor – meeting with ERCOT to review reports already submitted Given the low counts of known unregistered DG with BUSIDRRQ profiles, the discussion on the go-forward process has been tabled pending ERCOT review.

  8. Next PWG meeting date: Wednesday, May 23rd, 9:30 AM WebEx only AGENDA • Update on BUSIDRRQ profiled ESIs for DG identification need on a go-forward basis • 2018 Annual Validation status • Review of BUS default profile shapes & clarification of Oncor NIDR counts • Annual Validation Proposed Process • Discuss feedback on AV proposed process • BUS review annually • RES review every three years (next AV 2021) http://www.ercot.com/committees/board/tac/cops/pwg/

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