NOTICE DATE:  September 18, 2015    

NOTICE TYPE:  W-A091815-01 Operations

SHORT DESCRIPTION:  Change to Current Bid/Offer Limitation in the Day-Ahead Market

INTENDED AUDIENCE:  Qualified Scheduling Entities

DAY AFFECTED:  October 20-22, 2015

LONG DESCRIPTION:  On October 20 - 22, 2015, ERCOT will implement a change to the current bid/offer limitation in the Day-Ahead Market (DAM). Once the change is implemented, Qualified Scheduling Entities (QSEs) will be restricted to 35 Bid/Offer IDs per settlement point (or source/sink pair) per day. This applies to Energy-Only Offers, Energy Bids, and PTP Obligation Bids.

This change was discussed at the May 6, 2015 Wholesale Market Subcommittee (WMS) meeting and is documented in the Approved Minutes posted on the meeting page on ERCOT.com. The Market Submission Validation Rules document, located on the Day-Ahead Market page of ERCOT’s Market Information System (MIS), will be updated to reflect the new limit once it has become effective. A Digital Certificate is required to access the MIS.

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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sa/mm