Interconnection With SDG&E-Owned Electric Transmission Facilities

SDG&E Transmission-Level Interconnection Handbook

The SDG&E Transmission-Level Interconnection Handbook is applicable to all generators, loads, and transmission equipment interconnecting to the SDG&E transmission system that are not otherwise subject to SDG&E Rule 21.

It describes technical and operational requirements for wholesale generators, loads, and transmission equipment connected to the SDG&E portion of the ISO Controlled Grid, and as such the handbook may be modified or superseded from time to time.

SDG&E's standards contained in the Transmission-Level Interconnection Handbook are deemed consistent with Good Utility Practice and Applicable Reliability Standards.  The SDG&E Transmission-Level Interconnection Handbook includes:

  • Interconnection Process Overview
  • Metering Requirements
  • Protection and Control Requirements
  • Substation Requirements
  • Transmission Line Requirements
  • General Operating Requirements
  • Operating Procedures
  • Energization and Synchronization Requirements 
1.61 MB
PDF
SDG&E Transmission-Level Interconnection Handbook
SDG&E Transmission-Level Interconnection Handbook

Financial Security Instruments

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Letter of Credit
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NERC/WECC Reliability Standards

Please be advised that the NERC/WECC mandatory Reliability Standards as applicable to various registered entities are changed/updated from time to time and as such the terms in the latest version would always apply.