Title: Setting of Real-Time LMPs During EEA ERS/Load Resource Deployment
Next Group:
Next Step:
Status: Rejected on 06/06/2013


Date Gov Body Action Taken Next Steps
06/06/2013 TAC Rejected
05/16/2013 PRS Recommended for Approval TAC consideration of NPRR508
04/18/2013 PRS Recommended for Approval PRS Impact Analysis review
03/21/2013 PRS Deferred/Tabled PRS consideration of NPRR508
01/17/2013 PRS Deferred/Tabled PRS Consideration

Voting Record

Date Gov Body Motion Result
06/06/2013 TAC To recommend approval of NPRR508 as recommended by PRS in the 5/16/13 PRS Report. Failed
05/16/2013 PRS To endorse and forward the 4/18/13 PRS Report as amended by the 5/7/13 ERCOT comments and Impact Analysis for NPRR508 to TAC with a recommended priority of 2013 and rank of 880. Passed
04/18/2013 PRS To recommend approval of NPRR508 as amended by the 4/18/13 GDF Suez NA comments. Passed
03/21/2013 PRS To table NPRR508. Passed
01/17/2013 PRS To table NPRR508. 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: Dec 6, 2012
Sponsor: GDF Suez Marketing NA
Urgent: No
Sections: 6.3,,, 6.6.12 (new), (new), (new)
Description: This Nodal Protocol Revision Request (NPRR) will administratively set Locational Marginal Prices (LMPs) at the System-Wide Offer Cap (SWCAP) during Security-Constrained Economic Dispatch (SCED) executions in which ERCOT has deployed Emergency Response Service (ERS) Resources and/or Responsive Reserve (RRS) Service supplied by Load Resources.
Reason: Currently during SCED executions in which ERCOT has deployed ERS Resources and/or RRS supplied by Load Resources, the deployments could create a price reversal. Real-Time prices are vital to sending the correct signals to both Generation Resources and loads on when to react in a manner that ensures ERCOT System reliability. Price reversals send the incorrect signal during these vital intervals and this NPRR is designed to mitigate these price reversals.

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