NOTICE DATE: December 22, 2011

NOTICE TYPE: W-B120710-14 Extracts – Wholesale

SHORT DESCRIPTION: FINAL UPDATE – All 48 Hour Disclosure Reports as required by Protocols are now posting

INTENDED AUDIENCE: ERCOT Market Participants

DAYS AFFECTED: December 2010 – December 22, 2011

LONG DESCRIPTION: Some reports that are required by Protocol Section 3.2.5, Publication of Resource and Load Information, had delayed first run dates to resolve outstanding data anomalies and defects.

All 48 Hour Disclosure Reports as required by Protocols are now posting. The following reports are posting as of December 22, 2011.

Item	EMIL ID	Report Name	Protocol	Original First Run Date
5	NP3-927-EX	48-hour Aggregate Supply Curve for WGR by Disclosure Areas	NP3.2.5(1)(b)	5/31/2011
13	NP3-939-EX	48-hour Aggregate Energy Supply Curves (3PSO & Energy Only Offers)	NP3.2.5(3)(a)	12/3/2010
14	NP3-940-EX	48-hour Aggregate Energy Supply Curves (3PSO & Energy Only Offers) by Disclosure Areas	NP3.2.5(3)(a)	12/3/2010

ADDITIONAL INFORMATION: There is a help file titled “48 Hour Disclosure Reports Column Header Information”, posted at http://www.ercot.com/services/mdt/userguides/ that defines the columns in each of the reports. Additionally, the data that is currently not available in the 48 hour reporting above can be found in the 60 Day Disclosure Reports that are posting the non-aggregate data sixty days after the Operating Day.

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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