Wholesale transmission service

This page contains standard contracts and currently effective PG&E tariffs associated with wholesale transmission service. It can be read using the Adobe Reader.

Other standard tariffs such as the ISO Tariff are available at California Independent System Operator.

Access the tariffs and standard agreement

Posted documents may be subject to regulatory review, litigation and/or amendment—consult the appropriate regulatory authority for current status. Also, the conversion to Acrobat files may cause pagination variances from the official, filed version.

Transmission Owner

• Transmission Owner Tariff (PDF) [Effective 04/01/2026]
• Recent Filings: Links to FERC eLibrary
  • eLibrary | File List [Docket No. ER24-96-003, TO21 Settlement 2025, Effective 01/01/2024]
  • eLibrary | File List [Docket No. ER26-1416-001, Amendment to Order No. 898 revisions to Formula Model, Effective 01/01/2025]
  • eLibrary | File List [Docket No. ER26-1176-000, Revisions to EDAM Access Charge, Effective 04/01/2026]
• Annual Update: Transmission Owner Tariff Rate Year 2026 [Posted 12/1/2025]
  • TO21_RY2026 Annual Update_TL (PDF)
  • Link to FERC eLibrary: eLibrary | File List
• Draft Annual Update: Transmission Owner Tariff Rate Year 2027 [Posted 6/15/2026]
  • TO21 - Rate Year 2027 Draft Annual Update Summary (DOCX)
  • TO21 - RY2027 - Draft Annual Update Model (XLSX)
  • Revised Previous Models (ZIP)
  • TO21 - RY2027 - Draft Annual Update Workpapers (ZIP)
  • Change Log - TO21 RY2027_Draft_External (XLSX)
  • Attachment A - Affiliate Allocation Methodology (DOCX)

• Rate Year 2026 Discovery Responses
  • Compiled IRs_RY2026 (PDF)

  Wholesale Distribution

  • Wholesale Distribution Tariff (WDT4) [Effective 09/10/2026]
  • Recent Filings: Links to FERC eLibrary
    • eLibrary | File List [Docket No. ER25-209-000, WDT 4 Filing, Effective 05/25/2025]
    • eLibrary | File List [Docket No. ER25-209-001, WDT 4 Settlement Filing, Effective 05/25/2025]
    • eLibrary | File List [Docket No. ER26-3483-000, Revisions to GISP, Effective 09/10/2026]

  Transmission Interconnection

  • Transmission Interconnection Handbook