NOTICE DATE: December 3, 2025

NOTICE TYPE: W-A120325-01 Operations

SHORT DESCRIPTION: Reminder - ACTION REQUIRED - PUN output capacity changes

INTENDED AUDIENCE: Resource Entities with Private Use Networks

DAYS AFFECTED: February 1, 2026

LONG DESCRIPTION: This Market Notice is to remind Resource Entities with either Generation Resources or Settlement Only Transmission Self-Generators in Private Use Networks that their annual Declarations of Net Generation Availability Capacity are due no later than February 1, 2026. 

ERCOT Protocols Section 10.3.2.4, Reporting of Net Generation Capacity, requires each Resource Entity with Generation Resources or Settlement Only Transmission Self-Generators in Private Use Networks to complete the Section 22, Attachment L, Declaration of Private Use Network Net Generation Capacity Availability, and submit to ERCOT by February 1 of each year, stating its projected annual changes in net generation capacity available to the ERCOT Transmission Grid from May 31 of the previous calendar year to May 31 of the current calendar year, and annual changes for the next ten subsequent years. 

ERCOT will use the aggregated capacity forecasts for the Report on Capacity, Demand and Reserves in the ERCOT Region, pursuant to Section 3.2.6.4, Total Capacity Estimates.

ACTION REQUIRED: Please complete and return the Declaration of Private Use Network Net Generation Capacity Availability and return to ERCOT via email to MPRegistration@ercot.com no later than February 1, 2026.

CONTACT: If you have 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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