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Clarifications Needed from NATF - Protocols & NOGRR 025

Clarifications Needed from NATF - Protocols & NOGRR 025. NATF. October 13, 2009. Clarifications Needed from NATF. Issue – COP Performance vs. AS Responsibility Check in MMS. Issue – AS Responsibility Check in MMS. References: NP 8.1.3 (r) & 8.1.2 (2) and NOG 9.1.10.

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Clarifications Needed from NATF - Protocols & NOGRR 025

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  1. Clarifications Needed from NATF- Protocols & NOGRR 025 NATF October 13, 2009 http://nodal.ercot.com 1

  2. Clarifications Needed from NATF • Issue – COP Performance vs. AS Responsibility Check in MMS http://nodal.ercot.com 2

  3. Issue – AS Responsibility Check in MMS • References: NP 8.1.3 (r) & 8.1.2 (2) and NOG 9.1.10 http://nodal.ercot.com 3

  4. Issue – AS Responsibility Check in MMS • Other Related References: NP 8.1 (1), NP 3.9.2 (3) & (4) http://nodal.ercot.com 4

  5. Issue – AS Responsibility Check in MMS • Current MMS Implementation – AS Responsibility Check • Is an hourly event • Includes 1) QSE level AS Responsibility Check, and 2) System Level RRSNC and RRSLD Responsibility Check • Considers data more than the data contained in the QSE’s COP • For each type, QSE level AS Responsibility Check considers: • AS service resource responsibility capacity in COP • Self-arranged • Trade • DAM awards • SASM awards • RUC AS procument • SASM replacement and SASM failure to provide http://nodal.ercot.com 5

  6. Issue – AS Responsibility Check in MMS • Current NP language “… of valid COP failures to meet the provisions of paragraphs (3) and (4) of Section 3.9.2, Current Operating Plan Validation, for Ancillary Service Resource Responsibilities contained in the QSE’s COP used for the DRUC and each HRUC during the Operating Day. …” • May not capture the full picture of the current MMS implementatuon • Possible Protocols language changes? • Or what information is required by NP 8.1.2 (2) and/or NOG 9.1.10? http://nodal.ercot.com 6

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