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NPRR #221 · Revision Request

NPRR221  Day-Ahead Market and Real-Time Market Default Allocation Changes

Approved sponsor MCWG posted 2010-03-29 ercot.com
ReasonThis NPRR alleviates concerns about DAM participation in the event of a large default in the DAM. Instead of short paying DAM sales for default amounts in the DAM and only allocating to QSEs on a Load Ratio Share basis for default amounts in the RTM, this NPRR allocates default amounts to all QSEs and CRR Account Holders based on their maximum level of MWh activity in ERCOT-run markets. This NPRR also reduces exposure to defaults in the DAM by accelerating the DAM Invoice payment due date by one day.
Created2010-04-22
Approved2010-06-15
Sections Affected
9.1.29.4.19.4.29.4.39.4.59.7.29.7.39.7.3.19.7.3.29.7.3.2.19.7.3.2.29.7.59.199.19.19.19.29.19.2.19.19.2.2
Summary
This Nodal Protocol Revision Request (NPRR) changes the way default amounts (amounts owed to ERCOT by defaulting Counter-Party 180 days after the default occurs) in the Day-Ahead Market (DAM) and Real-Time Market (RTM) are allocated. This NPRR assigns a share of the default to each Counter-Party based on the greatest of the Counter-Party’s MWh activity in either the CRR market or DAM or RTM at the Counter-Party level for the calendar month prior to the month in which the default occurs. The Counter-Party share of the default is invoiced to the Counter-Party’s Qualified Scheduling Entities (QSEs) or Congestion Revenue Right (CRR) Account Holders, pro rata based on each of the Counter-Party QSE’s or Counter-Party CRR Account Holder’s share of the Counter-Party’s maximum MWh activity. The level of MWh activity in the CRR market and DAM is measured as the greater of the MWh purchases or sales in that market and the level of MWh activity in the RTM is measured as the greater of the Counter-Party’s MWh Load or generation, excluding generation from Reliability Must-Run (RMR) Resources and other Resources during Reliability Unit Commitment (RUC)-Committed Intervals. Language that currently exists in Sections 9.4.3 and 9.7.3 was consolidated and used to create new Section 9.19. This NPRR also accelerates the DAM Invoice payment due date by one day. This NPRR also includes revisions to synchronize the Nodal Protocols with the zonal Protocols as revised by Protocol Revision Request (PRR) 817, Cease Late Payment Charges for Defaulted Entities, to clarify how much security may be held back to be used to pay subsequent minor Invoices as they come due.
Action Log 4 milestones
Amendments
DateBodyMotionResult
Apr 22 '10PRS To recommend approval of NPRR221 as revised by PRS.Passed
May 20 '10PRS To endorse and forward the 4/22/10 PRS Report, as amended by the 5/7/10 ERCOT comments, and Impact Analysis for NPRR221 to TAC.Passed
Documents 10
NameTypePostedClassification
221NPRR-01 Day-Ahead Market and Real-Time Market Default Allocat doc Mar 30 '10 Revision Request
221NPRR-02 CEO Revision Request Review 033010 doc Mar 30 '10 Revision Request Comments
221NPRR-03 ERCOT Comments 042110 doc Apr 21 '10 Revision Request Comments
221NPRR-04 WMS Comments 042210 doc Apr 22 '10 Revision Request Comments
221NPRR-05 PRS Report 042210 doc Apr 27 '10 Committee Report
221NPRR-06 Impact Analysis 050410 doc May 4 '10 Staff Report
221NPRR-07 ERCOT Comments 050710 doc May 7 '10 Revision Request Comments
221NPRR-08 PRS Report 052010 doc May 24 '10 Committee Report
221NPRR-09 TAC Report 060310 doc Jun 4 '10 Committee Report
221NPRR-10 Board Report 061510 doc Jun 17 '10 Committee Report
Meetings That Took It Up 6
DateMeetingCommitteeStatus
Sep 13 '11 COPS Meeting COPS Concluded
Aug 9 '11 COPS Meeting COPS Concluded
Jun 3 '10 TAC Meeting TAC Concluded
May 20 '10 PRS Meeting PRS Concluded
Apr 22 '10 PRS Meeting PRS Concluded
Apr 21 '10 WMS Meeting WMS Concluded