NOTICE DATE: April 1, 2013

NOTICE TYPE: M-A040113-01 Extracts

SHORT DESCRIPTION: February 14, 2013 Operating Day prices doubled in Historical DAM Clearing Prices for Capacity Report

INTENDED AUDIENCE: ERCOT Market Participants

DAY AFFECTED: February 14, 2013

LONG DESCRIPTION: There were incorrect prices posted in the Historical DAM Clearing Prices for Capacity Report, NP4-181-ER, for Operating Day February 14, 2013, Report ID 13091. System issues on that day required the Day-Ahead Market results to publish twice, which caused some prices to be doubled on this particular report.

This report is generated every week and code changes have been implemented so the weekly file for 3/31/2013 was published with the correct amounts. The file has been validated and is available at http://www.ercot.com/mktinfo/prices/.

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