Horizon West | Regulatory

Regulatory

Filing Documents

FERC Form

Formula Rate

Relevant CPUC Filings and Orders

Commission Decision 18-09-030 (Certificate of Public Convenience and Necessity for the Suncrest Dynamic Reactive Power Support Project)
Commission’s website for the Estrella Substation and Paso Robles Area Reinforcement Project (Docket No. A.17-01-023)
Commission Decision 24-04-011 (Permit to Construct the Estrella Substation and Paso Robles Area Reinforcement Project)
Horizon West Transmission Application for Exemptions Relating to Security Transactions, Docket No. A.19-09-008
Horizon West Transmission Advice Letter 1-E (U222-E)
Horizon West Transmission Advice Letter 2-E (U222-E), with California Affiliate Transaction Rules Compliance Plan
Horizon West Transmission Advice Letter 3-E (U222-E)
Horizon West Transmission Advice Letter 4-E (U222-E)
Horizon West Transmission Advice Letter 5-E (U222-E), Notice of Construction of Conversion of 230 kV Transmission Line
Horizon West Transmission Advice Letter 6-E (U222-E)
Horizon West Transmission Advice Letter 7-E (U222-E)
Horizon West Transmission Advice Letter 8-E (U222-E)
Horizon West Transmission Advice Letter 9-E (U222-E), with California Affiliate Transaction Rules Compliance Plan
Horizon West Transmission Advice Letter 11-E (U222-E), with California Affiliate Transaction Rules Compliance Plan
Horizon West Transmission Wildfire Mitigation Plan
Horizon West California Affiliate Transaction Rules Compliance Plan

Relevant Facility Interconnection Documents

Horizon West Transmission Facility Interconnection Requirements (June 25, 2021)

Updated October 15, 2025.