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Large Load Integration

This section contains guides and documentation to assist Transmission Service Providers (TSPs), Resource Entities (REs), and Interconnecting Large Load Entities (ILLEs) through the interconnection process for new or modified Large Loads to the ERCOT System. Entities wishing to interconnect a load facility of 75 MW or greater should consult Section 9.2.1 of the ERCOT Planning Guide to determine if the request must go through the Large Load Interconnection process. The guides and documents on this page are used as part of the interconnection process.

Questions on the Large Load interconnection process or the materials on this page may be sent to LargeLoadInterconnection@ercot.com.

Guides Guides

ERCOT Planning Guide
Section 9 of the Planning Guide defines the requirements and processes used to facilitate new or modified Large Load Interconnections.

Forms and Other Documents Forms and Other Documents

Energization Request for New Standalone Large Load
This form must be completed, submitted to ERCOT, and approved prior to the energization of a new Large Load that is not netted with a Generation Resource. Requests to energize a new Large Load netted with a Generation Resource and to increase the amount of load approved to energize at an existing Large Load facility are also covered by other forms in this section.
Jul 18, 2025 - docx - 97 KB
Notice of Proposed Net Metering Arrangement Form
This form must be completed by the Resource Entity for any Generation Resource with which a Large Load proposes to co-locate. The form may be submitted any time after an LLI number has been assigned to the Large Load project, but ERCOT will not begin its study of the net metering arrangement until the Resource Entity has submitted all information about the arrangement that ERCOT will need for its study, including the TDSP’s completed LLI Study.
Sep 2, 2025 - docx - 22.6 KB
Stand-Alone Generation Resources as of Sept 1, 2025
This list identifies each stand-alone generation resource registered with ERCOT as of September 1, 2025. In accordance with Section 39.169 of the Public Utility Regulatory Act (PURA), the Resource Entity for any Generation Resource identified on this list that wishes to include a Large Load in a net metering arrangement with that Generation Resource must submit a Notice of Proposed Net Metering Arrangement form and receive Public Utility Commission approval following an ERCOT study before implementing the net metering arrangement.
Sep 2, 2025 - pdf - 120.3 KB