NOTICE DATE: November 10, 2026

NOTICE TYPE: M-C111026-01 Operations

SHORT DESCRIPTION: Requirement to submit heat rates by the Firm Fuel Supply Service (FFSS) offer submission deadline

INTENDED AUDIENCE: Qualified Scheduling Entities, Resource Entities with Generation Resources

DAYS AFFECTED: November 6, 2027

LONG DESCRIPTION: With the implementation of Nodal Protocols Revision Request (NPRR) 1335, Implementation of PUCT Changes to Firm Fuel Supply Service for Phase 3, Qualified Scheduling Entities (QSEs) or Resource Entities representing Generation Resources that submit offers to provide FFSS must submit heat rate curves for the alternate fuel for the FFSS Obligation Period, beginning with the 2027-2028 FFSS Obligation Period, as described in paragraph (10) of Section 3.14.5.

ACTION REQUIRED: The QSE or Resource Entity must email the heat rate curve and data used to derive it to NodalVerifiableCost@ercot.com by the FFSS offer deadline for the 2027-2028 FFSS Obligation Period.

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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dg