NOTICE DATE: June 8, 2026

NOTICE TYPE: M-A060826-01 Operations

SHORT DESCRIPTION: ERCOT manual action for Day-Ahead Market (DAM) Operating Days (OD) June 7, 2026, June 8, 2026, and June 9, 2026

INTENDED AUDIENCE: Qualified Scheduling Entities

DAYS AFFECTED: DAM ODs June 7, 2026, June 8, 2026 and June 9, 2026 

LONG DESCRIPTION: ERCOT has observed in recent days, Market Participants submitted an unusually large number of Energy-Only bids and offers. The unexpectedly high number of transactions caused a Day-Ahead Market (DAM) engine array size to be exceeded for ODs 6/7/2026, 6/8/2026 and 6/9/2026. This required manual intervention by ERCOT, and in accordance with Nodal Protocol section 4.1.2 (2), a number of Energy-Only bids and offers were cancelled. ERCOT directly notified the affected Market Participants.

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 ClientServices@ercot.com.

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