NOTICE DATE: September 19, 2017

NOTICE TYPE: M-A091917-01 Maintenance – Retail/Wholesale

SHORT DESCRIPTION: Network services maintenance

INTENDED AUDIENCE: ERCOT Market Participants

DAY AFFECTED: Tuesday, September 26, 2017 17:00 - 22:00 and Thursday, September 28, 2017 17:00 - 22:00

LONG DESCRIPTION: On Tuesday, September 26, 2017 17:00 - 22:00 and Thursday, September 28, 2017 17:00 - 22:00, ERCOT will be performing maintenance on network services that enable Market Participants to access ERCOT websites. There is no anticipated interruption of these services; however, if issues are experienced accessing any ERCOT websites, please contact the ERCOT Helpdesk at 512-248-6800.

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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