Title Ancillary Service Trades with ERCOT
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Next Step
Status Approved on 01/19/2010


Date Gov Body Action Taken Next steps
01/06/2010 TAC Recommended for Approval BOD consideration
12/17/2009 PRS Recommended for Approval TAC consideration
06/19/2008 PRS Recommended for Approval Review of the Impact Analysis
01/19/2010 BOARD Approved
09/24/2008 PRS Deferred/Tabled PRS consideration
11/19/2009 PRS Deferred/Tabled PRS consideration
07/17/2008 PRS Deferred/Tabled Development and review of Impact Analysis.
06/10/2008 TPTF Recommended for Approval Consideration by PRS
05/22/2008 PRS Referred Review of NPRR131 by TPTF.

Voting Record

Date Gov Body Motion Result
01/06/2010 TAC To recommend approval of NPRR131 as recommended by PRS in the 12/17/09 PRSRecommendation Report. Passed
12/17/2009 PRS To endorse and forward to TAC the 6/19/08 PRS Recommendation Report for NPRR131 as amended by the 12/8/09 ERCOT comments and as revised by PRS. To recommend a priority of High. Passed
06/19/2008 PRS To recommend approval of NPRR131 as amended by TPTF comments. Passed
01/19/2010 BOARD To approve NPRR131 as recommended by TAC in the 1/6/10 TAC Report. Passed
09/24/2008 PRS To table consideration of NPRR131, pending the development of the Impact Analysis. Passed
11/19/2009 PRS To table NPRR131 Passed
07/17/2008 PRS To table consideration of NPRR131, pending the development of the Impact Analysis. Passed
06/10/2008 TPTF To endorse submitting these revisions as TPTF comments to Protocol Revision Subcommittee (PRS) and identified the functionality as "approved post go-live" (i.e., the functionality is needed for the nodal market, but can be deferred past the Texas Nodal Market Implementation Date (TNMID) and should be funded as part of the nodal project). TPTF will revisit NPRR131 after the impact study is available to determine if NPRR131 can be classified as "needed for go-live" (i.e., the functionality must be available on the TNMID). Passed
05/22/2008 PRS To refer NPRR131 to the Transition Plan Taskforce (TPTF). Passed


Status: Approved
Date Posted: May 15, 2008
Sponsor: NRG Texas
Urgent: No
Sections: 2.1, Definitions; 4.3, QSE Activities and Responsibilities in the Day-Ahead;, Self-Arranged Ancillary Service Quantities;, Ancillary Service Trades;, Ancillary Service Supply Responsibility; 4.4.10, Credit Requirement for DAM Bids and Offers; 4.5.1, DAM Clearing Process; and, Charges for Ancillary Services Procurement in the DAM
Description: Allow all QSEs, whether they represent Resources, Loads, or both, to procure AS in the Day DAM.
Reason: In today’s zonal market, Resource Eentities can, if they choose, procure AS from ERCOT. This functionality was inadvertently omitted in the nodal design. Currently, the nodal design only allows QSEs with AS Obligations the option in the DAM of either: 1) self-providing, or 2) procuring all or a portion of their obligation from ERCOT. This NPRR would allow QSEs with AS responsibilities, i.e., Resource Entities, the same functionality.

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