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Welcome to the California Public Utilities Commission (CPUC) website for the California Environmental Quality Act (CEQA) review of the proposed LS Power Grid California, LLC. (LSPGC) Round Mountain 500kV Dynamic Reactive Support Project (Project). An application for this project was submitted to the CPUC on April 6, 2022 (Application A.22-04-004). This site provides access to public documents and information relevant to the CEQA review process.


LSPGC, in its CPUC application (A.22-04-004), filed on April 6, 2022, requests a permit to construct a Static Synchronous Compensator (STATCOM) Substation (the Fern Road Substation), which would include an approximately +/-529 million volt-amperes, reactive (MVAR) dynamic reactive support facility to include a minimum of two equally sized STATCOM units. The STATCOM units would be located within the new Fern Road Substation and would be independently connected (e.g., looped-in) to Pacific Gas and Electric Company’s (PG&E) regional electric transmission system via the Round Mountain – Table Mountain #1 and #2 500 kV transmission lines that are located adjacent to the Proposed Project site.

The Proposed Project see Location Map) would be located in east of Fern Road and east of the existing PG&E transmission right-of-way (ROW), approximately 1.6 miles northwest of the unincorporated community of Whitmore and approximately 9.3 miles north of State Highway 44 in unincorporated southern Shasta County. The Proposed Project would include interconnection to PG&E’s electrical transmission system via Round Mountain – Table Mountain #1 and #2 500 kV transmission lines, and upgrades to the existing PG&E Round Mountain and Table Mountain substations. The Proposed Project work would take place upon lands owned by LSPGC or within PG&E easements. The application includes the Proponent’s Environmental Assessment (PEA) prepared pursuant to Rule 2.4 of the CPUC's Rules of Practice and Procedure.

The purpose of the Project is to ensure reliability of the California Independent System Operator Corporation (CAISO) controlled grid The need for the Project was determined as part of the CAISO Transmission Planning Process. The CAISO 2018-2019 Transmission Plan determined that a dynamic reactive support facility was needed near the Round Mountain substation to mitigate excessive high voltage and dynamic stability issues that would otherwise result after PG&E retires the Diablo Canyon Nuclear Power Plant.

Project Status

Project Milestones as of May 2022
Milestone Date
Application and PEA submitted by LSPGC to CPUC April 6, 2022
Application Deemed Complete by CPUC May 6, 2022
Data Requests Ongoing
Publication of Draft IS/MND TBD
Public Meeting TBD 
Public Comment Period on IS/MND (30 days)
Publication of Final IS/MND TBD 
CPUC Certification of Final IS/MND TBD 
Start of Construction
Anticipated End of Construction TBD 

Note: schedule and level of CEQA documentation is preliminary and subject to change.

Documents Available for Review

Public documents related to the Proposed Project and PEA for the Gates 500 kV Dynamic Reactive Support Project can be found here:

LSPGC Application for a Permit to Construct (PTC) the 500 kV Fern Road Substation (April 6, 2022)
PTC Appendix A: Approved Project Sponsor Agreement (APSA)
PTC Appendix B: Map of the Project
PTC Appendix C: Siting Analysis
PTC Appendix D: Proponent’s Environmental Assessment 
PTC Appendix E: Electric and Magnetic Fields Management Plan
PTC Appendix F: Form of Notice under Section XI.A of General Order 131-D
PTC Appendix G: Certificates of Formation and Qualification to do Business in California

Amendment to PTC Application (April 14, 2022) 

Proponent’s Environmental Assessment PEA (April 6, 2022)
Appendix 1.0-A Figures
Appendix 2.0-A_Public Outreach Report 
Appendix 4.03-A_Air Quality Assessment
Appendix 4.04-A_Bio Resources Technical Report
Appendix 4.05-A_Cultural Resources Technical Report
Appendix 4.06-A_Fuels Use Calculations
Appendix 4.07-A_Geotech Engineering Report
Appendix 4.07-B_Paleontological Resources Technical Report
Appendix 4.08-A_GHG Screening Letter
Appendix 4.09-A_Phase 1 ESA
Appendix 4.13-A_Noise Results Memo
Appendix 4.18-A_B_C_D_Tribal Resources
Appendix 4.20-A_Wildfire Modeling Report

PTC Application Completeness Letter from CPUC (May 6, 2022)  

Construction Progress and Mitigation Monitoring Reporting, and Compliance Program

The CPUC, as the lead agency, is responsible for ensuring that the Applicant Proposed Measures, mitigation measures, as well as plans reviewed and approved by other agencies, are implemented throughout the construction phase of the Proposed Project. The Proposed Project documents related to mitigation monitoring will be available for public review on the Mitigation Monitoring section of this website.

For Additional Information

The CPUC, through its Environmental Review Team, is managing the environmental review of the Proposed Project. To request additional information, or to be added to the mailing list please contact us by email, or phone, as follows:

Project email: RndMnt@esassoc.com
Project voicemail: (707) 796-7012

The CPUC’s Project Manager is:

Boris Sanchez
California Public Utilities Commission
Energy Division - Infrastructure Permitting & CEQA
505 Van Ness Avenue
San Francisco, California 94102

Public Comment Mailing Address:

California Public-Utilities Commissio
Attn: Round Mountain/ Michael Manka

c/o Environmental Science Associates
1425 N. McDowell Blvd. Ste. 200
Petaluma, CA 94954