NOTICE DATE:  December 30, 2013

NOTICE TYPE:  W-B123013-01 Settlements

SHORT DESCRIPTION:  Resource Node Settlement Points mapped incorrectly to Load Zone Settlement Points for purposes of CRR Auction Revenue Distribution (CARD)

INTENDED AUDIENCE:  Qualified Scheduling Entities (QSEs)

DAY AFFECTED:  November 2012 through November 2013

LONG DESCRIPTION:  Three Resource Node Settlement Points were incorrectly mapped to Load Zone Settlement Points for the monthly CARD Invoice process.  The mappings were incorrect for the CARD Initial and Final Invoices for the months of November 2012 through September 2013 and for the CARD Initial Invoices of October and November 2013.

The table below shows the impacted Resource Node Settlement Points and the incorrect and correct Load Zone Settlement Point mapping.

Resource Node Settlement Point

Incorrect Load Zone

Correct Load Zone

BLSMT1_5_A_6  

SOUTH   

WEST

LV1A_LV1B      

WEST    

SOUTH

BCATWD_WD_1  

NORTH      

WEST

 

This error resulted in the incorrect allocation of CRR Non-Zonal and CRR Zonal Revenues as described in Protocol Sections 7.5.6.4, CRR Auction Revenues, and 7.5.7, Method for Distributing CRR Auction Revenues. While there was not a net dollar impact from the issue, CRR Revenues distributed to QSEs representing Load were incorrect. The original distributions in the West, North and South Load Zonal buckets and the Non-Zonal buckets were affected by the issue.  The error was caused by a manual data entry error and additional validation has been put in place going forward.

ERCOT has completed its analysis to determine the financial impact of the incorrect mapping for the time period of November 2012 through September 2013.  For all public bill determinants created in the CARD process, the attached spreadsheet shows the CARD Final Invoice values (column labeled “CARD Final”), and the estimated new values using the correct Load Zone Settlement Point mappings (column labeled “Corrected Totals).

The incorrect mappings have been resolved and the correct mappings will be used in the CARD Final Invoices for October and November 2013 and all months going forward.  The overall financial impact to all QSEs for November 2012 through September 2013 is approximately $231,176.14, with an overall average per QSE impact of $3,885.31.  The CARD Invoices for months prior to October 2013 are not eligible for resettlement because an Invoice Recipient must file a CRR Invoice dispute within ten Business Days of the date on which ERCOT posted the Invoice.  See Protocol Section 9.14.2(7).  The total individual QSE financial impact from November 2012 through September 2013 is available by contacting your ERCOT Account Manager.

ADDITIONAL INFORMATION:  This issue only impacts the allocation of CRR Auction Revenue to QSEs representing Load.

CONTACT:  If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at [log in to unmask].

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dg