NOTICE DATE: September 25, 2015

NOTICE TYPE: W-A092515-01 Extracts

SHORT DESCRIPTION: Extended outage of posted reports during R5 release window

INTENDED AUDIENCE: ERCOT Market Participants

DAY AFFECTED: September 24, 2015

LONG DESCRIPTION: ERCOT experienced a longer than usual outage with the implementation of Release 5 changes in the production environment between 18:00 and 19:15 Thursday, September 24, 2015. The postings for the report, NP6-905-CD, Settlement Point Prices at Resource Nodes, Hubs and Load Zones, have been retried and posted. The display on ERCOT.com, Real-Time Settlement Point Prices Display, will not be updated with the missing settlement point prices from 18:15 to 19:00.

The following reports were missed for multiple intervals during the migration. These reports do not have retry functionality; therefore, the missed intervals will not be rerun or reposted to the Market Information System (MIS).

EMIL ID	Product Name	Report Type ID	Frequency	Intervals Missed	Number of Intervals Missed
NP8-143-CD	QSE Ancillary Services Capacity Monitor	11025	Chron - 5 Minutes	24/09/2015 18:15 - 24/09/2015 19:10	12
NP6-619-CD	State Estimator Real-Time Transmission Line Flows	12308	Chron - 5 Minutes	24/09/2015 18:15 - 24/09/2015 19:10	12
NP6-291-CD	Topology Consistency	12309	Chron - 5 Minutes	24/09/2015 18:15 - 24/09/2015 19:10	12
NP4-733-CD	Wind Power Production, Actual 5-Minute averaged values	13071	Chron - 5 Minutes	24/09/2015 18:15 - 24/09/2015 19:10	12

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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