3/3/21 6:42 PM

M-D030321-01 Market Participant Mass Transition Event

NOTICE DATE: March 3, 2021

NOTICE TYPE: M-D030321-01 Informational: Mass Transition Event

SHORT DESCRIPTION: Market Participant Mass Transition Event

INTENDED AUDIENCE: RMS and Affected Market Participants

DAYS AFFECTED: March 3, 2021

LONG DESCRIPTION:  On Wednesday, March 03, 2021, ERCOT revoked all rights of ENTRUST ENERGY INC (LSE) to conduct activity under the ERCOT Protocols due to a Payment Breach. ERCOT Protocol Section provides that "On revocation of some or all of the Market Participant’s rights…ERCOT shall initiate a Mass Transition of the Market Participant’s ESI IDs pursuant to Section, Mass Transition Process.” 

Pursuant to Protocol Section, Mass Transition, and Retail Market Guide (RMG) Section 7.11, Mass Customer Transition Process, ERCOT began the Mass Transition of ENTRUST ENERGY INC (LSE) customers on Wednesday, March 03, 2021.  All of ENTRUST ENERGY INC (LSE) ESI IDs will be gained by one or more POLRs, as allocated by the PUCT Mass Transition process. 

The size of the associated combined 30 day Average Daily Load is approximately 4,521 MWHs and the number of ESI IDs involved is approximately 11,780.

ERCOT has been working closely with PUCT staff and Affected Market Participants to ensure an efficient and effective transfer of Customers to designated POLRs.

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

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