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S&B Protocol Clarifications

S&B Protocol Clarifications. ERCOT Mandy Bauld. Agenda. Seeking guidance regarding review of the value of q for QSGR settlement Seeking clarification regarding settlement treatment of a QSE-requested decommitment of a DAM committed interval. Value of q for QSGR Settlement.

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S&B Protocol Clarifications

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  1. S&B Protocol Clarifications ERCOT Mandy Bauld WMS

  2. Agenda • Seeking guidance regarding review of the value of q for QSGR settlement • Seeking clarification regarding settlement treatment of a QSE-requested decommitment of a DAM committed interval

  3. Value of q for QSGR Settlement • Refer to Protocol Section 3.8.3Quick Start Generation Resources • Paragraph (8) • If a QSGR comes On-Line as a result of a Base Point less than its COP LSL, the energy produced during the first q consecutive Settlement Intervals beginning with the Settlement Interval in which the QSGR comes On-Line shall be considered for additional compensation pursuant to Section 6.6.9, Emergency Operations Settlement, and using SCED Base Points in place of the Emergency Base Points. The value of q shall be reviewed at least annually by TAC. The value of q shall be provided to the market via Market Notice within three Business Days after a TAC approval of a change in value, and the new value shall be effective on the first day of the next month. Following a SCED QSGR deployment, the QSGR is expected to follow the SCED Base Points. • Note • The value q is currently set to 2, as specified in the “PRS Decision” description within NPRR 272 • Questions • Does the value of q need to be reviewed by WMS/QMWG before TAC? • Should TAC review the value of q for an effective date of 1/1/2012?

  4. QSE-Requested Decommitment of a DAM Commitment • Refer to Protocol Section 6.4.6 QSE-Requested Decommitment of Resources • and Changes to Ancillary Service Resource Responsibility of Resources • (4) In the Adjustment Period, a QSE may request to decommit a Resource for any interval that is not a RUC-Committed Interval by indicating a change in unit status in the QSE’s COP. • (5) A Resource cannot be decommitted for just a portion of a Day-Ahead Market (DAM)-Committed Interval, which is a one-hour interval. If a Resource that is decommitted for a DAM-Committed Interval, that one-hour DAM-Committed Interval is excluded from the calculation of any Day-Ahead Make-Whole Payment for that Resource. • Note: • Currently ERCOT detects this “decommit” by looking at the COP for each DAM-committed Resource. If this is detected ERCOT manually removes the DAM-committed interval prior to executing DAM settlements to ensure that the hour is excluded from the DAM Make-Whole Payment calculation. • The DAM Make-Whole Payment eligibility process provides a similar type of evaluation. If the resource does not come online for the DAM committed interval, it will not receive an energy payment. Even if the DAM-committed interval is not removed (as is currently required) there is a reducing effect on the overall payment for the DAM commitment. • ERCOT questions the necessity of the 6.4.6 (5) requirement and manual process to exclude the interval and would like feedback from WMS (and/or QMWG) before proceeding with an NPRR to remove it.

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