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NOTICE DATE: April 4, 2011

NOTICE TYPE: W-D040411-01 Extracts – Wholesale

SHORT DESCRIPTION: Format changes to the 60 Day Disclosure Reports

INTENDED AUDIENCE: ERCOT Market Participants

DAYS AFFECTED: March 2, 2011, to current

LONG DESCRIPTION: ERCOT has made several format changes to a number of the 60 Day Disclosure Reports. A list of those changes and the affected reports are captured in the chart below. These changes went live during the February release but were inadvertently left off of the detailed defect list provided to the market. The format changes to these reports should not require any changes by the Market Participants.

EMIL ID	PRODUCT NAME	CHANGE DESCRIPTION
NP3-967-EX	61-day QSE-specific Self-Arranged AS in SCED	Split of RRS Load Column into two Columns (RRSLD & RRSNC)
NP3-968-EX	61-day Generation Resource data in SCED	Added new column Telemetered Net Output
NP3-976-EX	61-day Generation Resource AS Offers in DAM	Remove Trade_Date column & include Nulls as Nulls
NP3-978-EX	61-day Load Resource AS Offers in DAM	Remove Trade_Date column & include Nulls as Nulls
NP3-979-EX	61-day Settlement Point Data in DAM- Energy Only Offers	Update Multi-Hour Block Indicator from Number to Y or N & include Nulls as Nulls
NP3-981-EX	61-day Settlement Point Data in DAM- Energy Bids	Update Multi-Hour Block Indicator from Number to Y or N & include Nulls as Nulls
NP3-983-EX	61-day Settlement Point Data in DAM- CRR Offers	Added Column CRR_ID & Update Multi-Hour Block Indicator from Number to Y or N
NP3-984-EX	61-day Settlement Point Data in DAM- CRR Awards	Added Column CRR_ID
NP3-985-EX	61-day Settlement Point Data Point-to-Point Obligation Bids	Update Multi-Hour Block Indicator from Number to Y or N

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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