NOTICE DATE:  April 10, 2012

NOTICE TYPE:  W-B041012-01 Extracts - Wholesale

SHORT DESCRIPTION:   Outage of Wind Generation Forecasts – Missed Postings

INTENDED AUDIENCE:  ERCOT Market Participants

DAY AFFECTED:  April 10, 2012

LONG DESCRIPTION:  A vendor outage occurred after midnight last night, preventing the vendor from sending wind forecast data to ERCOT.  The vendor has identified and corrected the issue.  The issue began at 12:13 AM and was resolved shortly after 2:39 AM.  The following hourly reports were not posted to MIS and ERCOT.com during the outage.  Regular postings resumed at 03:14 AM.

Report Name

EMIL ID

Report ID

Intervals missed

Total

Aggregated Wind Generation Resource Power Potential Forecast

NP4-730-CD

12318

10/04/2012 00:00 - 10/04/2012 02:00

2

Wind Generation Resource Power Potential Forecast

NP4-731-CD

12320

10/04/2012 00:00 - 10/04/2012 02:00

2



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