NOTICE DATE: May 11, 2026

NOTICE TYPE: W-A051126-01 Operations

SHORT DESCRIPTION: 2026 Geomagnetic Disturbance Plan has been posted

INTENDED AUDIENCE: ERCOT Transmission Operators

DAYS AFFECTED: May 11, 2026

LONG DESCRIPTION: Pursuant to ERCOT Nodal Operating Guides, 4.7.3, the ERCOT Geomagnetic Disturbance (GMD) Operating Plan has been posted on the Market Information System (MIS) Certified Area in the ERCOT Geomagnetic Disturbance Operating Plan (EMIL ID: NOG4-731-M  | Report ID 13476).

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.

If you are receiving email from a public ERCOT distribution list that you no longer wish to receive, please follow this link in order to unsubscribe from this list: http://lists.ercot.com.

kg/dg