Title: Requirement to Post Generation Resources Temporal Constraints
Next Group:
Next Step:
Status: Approved on 07/19/2011
Effective Dates:


Date Gov Body Action Taken Next Steps
07/19/2011 BOARD Approved
06/02/2011 TAC Recommended for Approval ERCOT Board consideration of NPRR314
05/19/2011 PRS Recommended for Approval TAC consideration of NPRR314
04/21/2011 PRS Recommended for Approval PRS Impact Analysis review
03/24/2011 PRS Deferred/Tabled PRS language consideration

Voting Record

Date Gov Body Motion Result
07/19/2011 BOARD To approve NPRR314 as recommended by TAC in the 6/2/11 TAC Report. Passed
06/02/2011 TAC To recommend approval of NPRR314 as recommended by PRS in the 5/19/11 PRS Report. Passed
05/19/2011 PRS To endorse and forward the 4/21/11 PRS Report, Impact Analysis and Cost Benefit Analysis for NPRR314 to TAC and to recommend a priority of High and rank of 15.4. Passed
04/21/2011 PRS To recommend approval of NPRR314 as amended by the 4/5/11 Luminant comments. Passed
03/24/2011 PRS To table and request that WMS review NPRR314. 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: Feb 1, 2011
Sponsor: Luminant Energy Company, LLC
Urgent: No
Sections: 5.1
Description: This Nodal Protocol Revision Request (NPRR) adds language to specify the need for ERCOT to post to the Market Information System (MIS) Certified Area the current time since a Generation Resource last went Off-Line (in hours) and the corresponding startup time ERCOT is using for of all Off-Line Generation Resources which may be considered in any Reliability Unit Commitment (RUC) process.
Reason: The posting of this information increases reliability by allowing Qualified Scheduling Entities (QSEs) with Resources the ability to verify the temporal constraints ERCOT is using in the RUC process so that commitment decisions will be made with accurate availability information. If ERCOT’s Security Sequence is utilizing changes to the telemetered Resource Status to detect the temporal condition of a Resource, there may be inadvertent changes to the Resource Status in the QSE’s control system that do not reflect the actual condition of the Generation Resource. Posting of the Resource’s current Off-Line hours and corresponding startup times will allow QSEs to verify the assumed condition used by RUC in the Security Sequence.

Key Documents

Related Content