Title: Simplify Ancillary Services Settlement Formulas
Next Group:
Next Step:
Status: Approved on 07/15/2008
Effective Dates:

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/08 Nodal Protocols Library)


Date Gov Body Action Taken Next Steps
06/19/2008 PRS Recommended for Approval Consideration of NPRR122 by TAC
07/15/2008 BOARD Approved
06/26/2008 TAC Recommended for Approval ERCOT Board consideration
05/22/2008 PRS Recommended for Approval Review of Impact Analysis and Recommendation Report.
04/18/2008 PRS Referred Review by TPTF.

Voting Record

Date Gov Body Motion Result
06/19/2008 PRS To endorse the Impact Analysis and Recommendation Report for NPRR119, and forward the documents to TAC. Passed
07/15/2008 BOARD To approve NPRR122 as recommended by TAC. Passed
06/26/2008 TAC To recommend approval of NPRR122 as recommended by PRS. Passed
05/22/2008 PRS To recommend approval of NPRR122 as submitted. Passed
04/18/2008 PRS To refer NPRR122 to TPTF for review. 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: Apr 7, 2008
Sponsor: ERCOT Staff
Urgent: No
Sections: for Ancillary Services Procured in DAM; Charges for Ancillary Services Procurement in the DAM; 6.7.3 Adjustments to Cost Allocations for Ancillary Services Procurement
Description: This Nodal Protocol Revision Request (NPRR) replaces the Ancillary Service trades and self-supply in the Settlement formulas and replaces them with the self-arranged quantities. This NPRR also, proposes editorial changes to variables and subscripts and adds clarifying language.
Reason: Market Participants have commented that the Ancillary Service formulas are confusing. This NPRR intends to focus on the fundamentals of Ancillary Service Settlement and makes the formulas and concepts more understandable.

Key Documents

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