Title: Refinements to Testing ERS
Next Group:
Next Step:
Status: Rejected on 02/13/2014


Date Gov Body Action Taken Next Steps
02/13/2014 PRS Rejected
12/19/2013 PRS Deferred/Tabled PRS for consideration

Voting Record

Date Gov Body Motion Result
02/13/2014 PRS To reject NPRR582. Passed
12/19/2013 PRS To table NPRR582 and to refer the issue to WMS. Passed

Vote tallies here reflect individual votes, not the weight of the votes by market segment. Affirmative votes are not recorded in these vote tallies. For additional details on the voting record, please consult the Recommendation or Action Report, or the official vote tally if available, as posted in the key documents.


Status: Rejected
Date Posted: Nov 13, 2013
Sponsor: Edison Mission
Urgent: No
Description: This Nodal Protocol Revision Request (NPRR) establishes a limit on the number of MW that ERCOT can test for Emergency Response Service (ERS) at any particular point in time. As ERS grows in MW, types, distribution, and use by ERCOT, the potential impact created by testing ERS grows. The intent of this NPRR is to balance the needs for testing to validate parameters for ERS as set forth in the Protocols and Other Binding Documents, while recognizing that ERCOT-instructed interruption of Load for testing purposes can impact Real-Time energy price formation.
Reason: ERS requires participating Loads to meet availability and performance requirements. ERCOT tests ERS and this testing reduces Load on the ERCOT System thereby potentially impacting price formation. The expansion of ERS to include weather sensitive Loads, which may be available only over peak periods, could result in unintended consequences if testing occurs over peak periods. By limiting the MW that can be tested at a particular time, this NPRR ensures that testing, even if over peak, will not have a tremendously adverse effect on Real-Time price formation. Testing ERS is different than testing Generation Resources because testing Generation Resources does not change the overall amount of Load on the ERCOT System. Testing ERS reduces the overall Load on the ERCOT System.

Key Documents

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