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PRR850

Summary

Title Weather Responsiveness Determination for Interval Data Recorders
Next Group
Next Step
Status Approved on 09/21/2010

Action

Date Gov Body Action Taken Next Steps
09/21/2010 BOARD Approved
09/02/2010 TAC Recommended for Approval BOD consideration
08/19/2010 PRS Recommended for Approval TAC consideration

Voting Record

Date Gov Body Motion Result
09/21/2010 BOARD Approve prr850 as recommended by tac in the 9/2/10 tac report and as amended by the 9/14/10 ercot comments. Passed
09/02/2010 TAC To recommend approval of PRR850 as recommended by PRS in the 8/19/10 PRS Report Passed
08/19/2010 PRS To endorse and forward PRR850 and the Impact Analysis to TAC Passed

Background

Status: Approved
Date Posted: Aug 11, 2010
Sponsor: COPS
Urgent: Yes
Sections: 11.4.3, 11.4.3.1
Description: This Protocol Revision Request (PRR) limits the applicability of the weather responsiveness test to Interval Data Recorder (IDR) Meters.
Reason: Current Protocols require ERCOT to perform a weather responsiveness test on Electric Service Identifiers (ESI IDs) with IDRs and does not differentiate between Advanced Meters and IDR Meters. Performing this test on Advanced Meters has a significant impact on ERCOT System processing times. ERCOT estimates that it would take approximately eight days of system processing time to perform this check on ESI IDs with an Advanced Meter. On Operating Day 6/01/2010, data was being processed for more than 900,000 Advanced Meters. Test runs have shown the data loading portion of this job to be ¾ of a second per ESI ID. · 900,000 ESI IDs * .75 seconds per ESI ID = 675,000 seconds · 24 hours/day * 60 min/hour * 60 sec/min = 86,400 sec/day · 675,000 sec / 86,400 sec/day = 7.8125 days This job running for nearly eight days would impact many core deliverables, including: · Timely completion of core wholesale aggregation and financial Settlements. · Timely loading of Advanced Meter System (AMS) interval data from the market.

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