NOTICE DATE: June 26, 2026
NOTICE TYPE: M-B062326-02 General
SHORT DESCRIPTION: Batch Zero follow-up for WLPUN/BYOG
INTENDED AUDIENCE: All Market Participants
DAYS AFFECTED: July 10, 2026
LONG DESCRIPTION: As a follow-up to Market Notice M-B062326-01, issued earlier this week, ERCOT is providing the specific timeline guidance below for a Large Load eligible to be studied load seeking to enter Batch Zero as a Withdrawal-Limited Private Use Network (WLPUN, also referred to as Bring Your Own Generation, BYOG).
In accordance with PGRR145 Planning Guide Section 9.2.2.2(3)(a), for each new generator(s) intending to co-locate with a Large Load as a WLPUN, the complete Full Interconnection Study (FIS) application must be submitted to and accepted by ERCOT, as indicated in the Resource Integration and Ongoing Operations (RIOO) system, on or before July 10, 2026. The submission must include all requirements described in Planning Guide Section 5.3.2(3). Upon receipt of the application, ERCOT will notify the Interconnecting Entity within ten Business Days if the application fails to include information necessary for approval. To allow time for ERCOT's completeness review, a new generator intending to be part of a WLPUN must submit its FIS application to ERCOT by June 26, 2026 to ensure ERCOT has the ten Business Days available to review.
ERCOT will make every effort to review FIS applications received after this date. However, ERCOT cannot guarantee that they will be reviewed by July 10.
ACTION REQUIRED: Any generator intending to be part of a WLPUN must submit its FIS application to ERCOT by June 26, 2026 to ensure ERCOT review.
ADDITIONAL INFORMATION: ERCOT has posted the necessary guides, forms, and attestations to the Large Load Integration page and stakeholder questions can be sent to LLWG_Feedback@ercot.com.
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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