NOTICE DATE: October 12, 2026

NOTICE TYPE: M-B101226-01 Settlements

SHORT DESCRIPTION: Update to Transmission-Voltage Customers Opt-Out List Maintained Pursuant to PURA section 39.653(d)

INTENDED AUDIENCE: All Market Participants; ERCOT Retail Market Subcommittee 

DAYS AFFECTED: October 19, 2026 

LONG DESCRIPTION: Under the Public Utility Commission of Texas's (PUCT) Debt Obligation Order in Docket No. 52322, issued October 13, 2021 (the Subchapter N Order), ERCOT was authorized to issue securitization bonds under Public Utility Regulatory Act (PURA) chapter 39, subchapter N, in an amount up to $2.1 billion. The Subchapter N Order also, among other things, created a process that enabled transmission-voltage customers (TVCs) who had paid all of their invoices incurred during Winter Storm Uri to opt out of securitization uplift charges under PURA section 39.653(d). A current list of TVCs who have opted out of securitization uplift charges is maintained on ERCOT's Subchapter N Uplift Balance Securitization webpage under the "ERCOT Protocols and NPRRs" heading.  

On August 29, 2024, the PUCT issued a Declaratory Order in Docket No. 56125 clarifying, among other things, that a TVC opt-out under PURA section 39.653(d) and the Subchapter N Order is not transferable to other entities. On August 20, 2025, PUCT Staff filed a petition in Docket No. 58531 seeking to update the TVC opt-out list. Specifically, in that petition, PUCT Staff sought the removal of 18 Electric Service Identifiers (ESI IDs) from the opt-out list. PUCT Staff's request to remove one of those ESI IDs was severed into a separate proceeding, Docket No. 59763.  

On October 1, 2026, the PUCT issued its final Order in Docket No. 59763 (Order) directing ERCOT to remove ESI ID No. 10400519455430001 from the current TVC opt-out list.  The Order directed ERCOT to select an effective date for the removal of this ESI ID at least seven and no more than 21 days after the date of the Order.  ERCOT has accordingly designated an effective date of October 19, 2026.  

Under the Order, ERCOT must issue a Market Notice to the Retail Market Subcommittee (RMS) indicating that ESI ID No. 10400519455430001 will be removed from the TVC opt-out list, along with the effective date of the removal.  This Market Notice, which will be sent to the RMS e-mail listserv, serves as notice that, effective October 19, 2026, ESI ID No. 10400519455430001 will be removed from the TVC opt-out list maintained by ERCOT. 

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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