Title: Restore the ability to use Physical Responsive Reserve Capability as an Indicator of Available Frequency-Responsive Capacity
Next Group:
Next Step:
Status: Approved on 08/11/2015
Effective Dates:


Date Gov Body Action Taken Next Steps
08/11/2015 BOARD Approved
07/30/2015 TAC Recommended for Approval Revision Request Consideration
07/16/2015 PRS Recommended for Approval TAC Consideration
06/11/2015 PRS Recommended for Approval Impact Analysis Consideration

Voting Record

Date Gov Body Motion Result
08/11/2015 BOARD Approved NPRR706 as recommended by TAC in the 7/30/15 TAC Report. Passed
07/30/2015 TAC To recommend approval of NPRR706 as amended by the 6/4/15 WMS comments. Passed
07/16/2015 PRS To endorse and forward to TAC the 6/11/15 PRS Report and the Impact Analysis for NPRR706 with a recommended priority of 2015 and rank of 1350. Passed
06/11/2015 PRS To recommend approval of NPRR706 as amended by the 6/4/15 WMS comments. 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: Approved
Date Posted: May 20, 2015
Sponsor: ERCOT
Urgent: No
Description: This Nodal Protocol Revision Request (NPRR) revises the calculation of Physical Responsive Capability (PRC) to more accurately indicate the amount of capacity that is available to respond to a frequency disturbance, as discussed during the Energy Emergency Alert (EEA) Workshop. Accurate monitoring of the level of frequency-responsive reserves is important during all conditions and especially during Emergency Conditions where capacity providing Responsive Reserve Service is released to Security-Constrained Economic Dispatch (SCED), so that operators know how much remaining capacity is available on the system to respond to disturbances and can take appropriate actions.

Key Documents

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