Horizon has provided the California Public Utilities Commission (CPUC) with CEQA, NEPA and regulatory compliance services since 2013. CPUC conducts environmental assessments of projects proposed by utility applicants. Projects proposed by utility applicants are defined as work related to the application of any Investor Owned Utility for either a Permit to Construct or a Certificate of Public Convenience and Necessity.

Services provided by Horizon include:

  • Reviewing CEQA/NEPA documents prepared by state and federal agencies.
  • Preparing CEQA documents and mitigation monitoring plans.
  • Providing construction monitoring services.
  • Coordinating public notices and meetings.
  • Providing expert witness testimony.


Examples of Horizon’s CPUC work include the following:

EIR for NextEra Energy Transmission West Suncrest Dynamic Reactive Power Support Project.

The project in San Diego County involves construction of a dynamic reactive facility approximately 1 mile east of the existing Suncrest Substation and interconnecting this facility with the substation via an underground transmission line. Horizon prepared the EIR and responded to hundreds of pages of comments received during the public review period.

CEQA Compliance for Pacific Gas & Electric/NextEra Energy Transmission West Estrella Substation Project.

Horizon is currently preparing and EIR for project involving construction of two substations, an approximately 7‑mile-long 70-kV power line, and reconductoring of approximately 3 miles of power line in San Luis Obispo County, including portions of the city of Paso Robles.

CEQA Compliance for SDG&E Tie Line 649 Wood-to-Steel Replacement Project.

Horizon prepared an IS/MND for project involving replacement of San Diego Gas & Electric’s existing wood poles with steel poles to reduce the likelihood of service disruption along tie line 649 (7-mile-long alignment) in the event of a wildland fire.

NEPA/CEQA Compliance for Winterhaven Last Mile Underserved Broadband Project. Horizon prepared an environmental assessment for a project that will extend high-speed internet service to approximately 15 square miles covering the Winterhaven Community and other areas of unincorporated Imperial County, including the Yuma-Quechan Indian Reservation

On-Call Environmental Consulting Support for Electric and Gas Projects (since 2013)

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