NOTICE DATE: June 2, 2021

NOTICE TYPE: M-G052621-02 Informational: Mass Transition Event

SHORT DESCRIPTION: Final - Completion of the Mass Transition

INTENDED AUDIENCE: RMS and Affected Market Participants

DAY AFFECTED: June 2, 2021

LONG DESCRIPTION: Brilliant Energy LLC (Brilliant) (DUNS 800312048) has zero (0) active non-residential Electric Service Identifiers (ESI IDs) in ERCOT's system.

The final Brilliant non-residential ESI ID relationship terminated in ERCOT's system on June 2, 2021, at 02:01 AM CPT.

This will be the last update/communication regarding this Mass Transition event.

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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