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AMS Indicator ERCOT Recommendations

AMS Indicator ERCOT Recommendations. ERCOT 3/9/2011. Current AMS indicator. The original AMS indicator project as mandated by the PUC describes the flag as: PUCT Project 37291:

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AMS Indicator ERCOT Recommendations

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  1. AMS Indicator ERCOT Recommendations ERCOT 3/9/2011

  2. Current AMS indicator The original AMS indicator project as mandated by the PUC describes the flag as: PUCT Project 37291:   SETTLEMENT PROVISIONED METER: An advanced meter as defined in P.U.C. Subst. R. 25.130, Advanced Metering, that has been deployed by the Company, and for which 15-minute interval data is sent to and accepted by ERCOT for settlement purposes. ERCOT’s recommendation: • Do not change the current indicator, leave as ‘true/false’ and based solely on the load profile assigned in the settlement system • Create an additional indicator to define the type of AMS meter that is currently installed at a premise (AMSR, AMSM) or that there is not an AMS meter installed (N) • New indicator would be added to existing extracts and reports in addition to displaying the AMS indicator as it exists today MCT/TX SET

  3. Initial Population File ERCOT’s recommendation : • Each TDSP will provide a list ESIIDs where AMS meters are installed. • The TDSPs will provide the value for the indicator (AMSR or AMSM). • ERCOT will populate those values into its system and provide a list of all remaining ESIIDs that were not updated as a part of the effort. • ERCOT will provide the TDSP a list of all ESIIDs to be populated with the ‘N’ value and will require verification back from the TDSP that they agree with the designation assignment. • Upon approval by the TDSP, ERCOT will use the list to populate the remaining ESIIDs. MCT/TX SET

  4. Daily Operation after initial population 814_20 Create transactions will require the REF~MR in the LIN loop to be populated with either AMSR, AMSM or N to ensure initial population. • ERCOT will not assume a designation based on a null value 814_20 Maintain transactions will require the new REF~MR segment in the LIN loop in to be populated when REFMR is provided in the REF~TD which will indicate the AMS Indicator needs to be updated. The TDSP does not need to include the REF~MR in the 814_20 maintain unless a change is required to the AMS indicator Instances which would require alteration of initial designation: • IDR threshold values have been met, requiring the installation of an IDR meter. • Inadvertent assignment to AMS value when ESIID did not have an AMS meter. Other Considerations: 814_04, 814_05, 814_14 and 814_22 should be reviewed to incorporate the ‘N’ indicator as well, since they contain the same REF~MR segment MCT/TX SET

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