NOTICE DATE: July 10, 2015

NOTICE TYPE: M-A070215-02 Outage Retail/Wholesale

SHORT DESCRIPTION: Reminder - Scheduled Maintenance Outage

INTENDED AUDIENCE: All Market Participants

DAY AFFECTED: Sunday, July 12, 2015 from 06:00 to 21:00

LONG DESCRIPTION: ERCOT will be performing planned maintenance on July 12, 2015, from 06:00 to 21:00 CPT. During the outage the following functions will be affected:

Market Participants utilizing NAESB to send/receive transactions to/from ERCOT will NOT be able to send/receive transactions to/from ERCOT during the outage. This includes all retail transactions.
867 transactions will NOT be forwarded during the outage.
997 Functional Acknowledgements will NOT be sent during the outage.
MarkeTrak will be unavailable for the duration of the outage.

Retail Application components of the MIS and the Retail API will NOT be available

Retail Reports and Extracts may be impacted during the outage timeframe
eService application will be unavailable on the Market Information System (MIS)

MPIM will be unavailable for the duration of the outage.
The following ERCOT internet service will be unavailable during this outage:

o Texas Renewables – www.texasrenewables.com

Find ESIID and Find Transaction will be unavailable
Market Data Transparency (MDT) Web Services will be unavailable
Extract Subscriber will be unavailable
NDCRC will be unavailable

ACTION REQUIRED: During the outage ERCOT will change the public IP address of some market facing services. This change could impact market participants’ ability to access those services, or receive responses from them.

NOTE: All Market Participants that transmit files via NAESB must ensure their systems can send transactions to and receive transactions from the new IP address (66.128.17.102).

The specific changes to the services are listed below.

NAESB

https://naesb.ercot.com:7403/ipnet/naesb - no change

New Public IP: 66.128.17.102

Former Public IP: 66.128.16.102

Port: 7403 – no change

ETOD/Retail Testing Website

https://etod.ercot.com/ - no change

New Public IP: 66.128.17.159

Former Public IP: 66.128.16.172

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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