NOTICE DATE: April 20, 2016

NOTICE TYPE: M-A042016-01 Extracts

SHORT DESCRIPTION: Missed report posting on MIS

INTENDED AUDIENCE: ERCOT Market Participants

DAY AFFECTED: April 19, 2016

LONG DESCRIPTION: The Supplemental AMS Interval Data Extract (COMS-456, Report ID 1040) failed to post on April 19, 2016.

In addition, the following portions of Market Data Transparency (MDT) Web Services, which are accessed via the Market Information System (MIS), are not current although the “Data available as of” date indicates that they are current.

· Provide ESIIDs where AMS interval data not loaded for a trade date

· Provide AMS interval data for a trade date

ERCOT is investigating the root cause as well as any other impacts, and will send a follow-up Market Notice when additional information is available.

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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