Grid Interconnection Guide

Understanding the interconnection process for various utilities and project types in California

Select Utility

Interconnection Type

Process Information

PG&E Distribution Level Interconnection

Process Steps

  1. Submit Pre-Application Report Request (Optional)
  2. Submit Interconnection Request via PG&E's Interconnection Portal
  3. Technical Screening and Engineering Review
  4. Interconnection Agreement Execution
  5. Construction, Testing and Commissioning
  6. Permission to Operate (PTO)

Typical Timeline

3-12+ months depending on project size and queue position

Fees

Fast Track: $800-$1,000 for projects under 1MW, Detailed Study: $10,000-$50,000+

Official Documentation

Interconnection Assistant

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Additional Resources

Rule 21

California's interconnection procedure for distributed generation facilities.

CAISO Generator Interconnection

Information on connecting to California's transmission system.

California Energy Commission

Resources on renewable energy policies and programs in California.