Title Resource Status Input to RUC and Ancillary Service Awards from RUC
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Status Approved on 08/18/2009
Effective Dates

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/09 Nodal Protocols Library)


Date Gov Body Action Taken Next Steps
07/09/2009 TAC Remanded PRS Review
08/18/2009 BOARD Approved
08/06/2009 TAC Recommended for Approval ERCOT Board consideration
07/23/2009 PRS Recommended for Approval TAC consideration
05/21/2009 PRS Recommended for Approval PRS IA Review
06/18/2009 PRS Recommended for Approval TAC Consideration

Voting Record

Date Gov Body Motion Result
07/09/2009 TAC To remand NPRR176 to PRS. All Market Segments were present for the vote. Passed
08/18/2009 BOARD To approve NPRR176 as recommended by TAC in the 8/6/09 TAC Recommendation Report Passed
08/06/2009 TAC To recommend approval of NPRR176 as recommended by PRS Passed
07/23/2009 PRS To recommend approval of NPRR176 as amended by ERCOT comments and as revised by PRS. Passed
05/21/2009 PRS To recommend approval of NPRR176 as amended by Luminant comments. Passed
06/18/2009 PRS To endorse and forward the PRS Recommendation Report and Impact Analysis for NPRR176 to TAC. Passed


Status: Approved
Date Posted: May 7, 2009
Sponsor: ERCOT
Urgent: No
Sections: 5.5.2,, 5.5.2
Description: This Nodal Protocol Revision Request (NPRR) provides clarity in the Nodal Protocol language. Resources committed by Day-Ahead Market (DAM) are not considered as On-Line by Reliability Unit Commitment (RUC) unless a Qualified Scheduling Entity (QSE) has changed the Resource Status to On-Line in the Current Operating Plan (COP) for that hour. During Ancillary Service insufficiency, an ERCOT Operator may commit Resources in RUC to provide Ancillary Service. If the commitment is for Ancillary Service then the QSE should be able to show the Resource in COP with "ONRUC" status and non-zero Ancillary Service Resource Responsibility corresponding to the Ancillary Service awards from RUC.
Reason: Minor corrections to remove conflicting Protocol language and to clarify the intent of the Protocol.

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