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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 500 kV Area 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 Project site.

The 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 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 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.

Project Status

The CPUC prepared an Initial Study/Mitigated Negative Declaration (IS/MND) to evaluate the environmental effects of the Round Mountain 500kV Dynamic Reactive Support Project. The table below shows milestones and dates associated with the environmental review process.

Project Milestones as of August 2023
Milestone Date
Application and PEA submitted by LSPGC to CPUC April 6, 2022
Application Deemed Complete by CPUC May 6, 2022
Publication of Draft IS/MND May 26, 2023
Public CEQA Review Period (30 days)
May 26, 2023 - June 26, 2023
Publication of Final IS/MND August 30, 2023
CPUC Certification of Final IS/MND TBD 
Construction TBD 

Availability of the Public Draft IS/MND

Copies of the Public Draft IS/MND are available for public review at the libraries identified below and on this project website.

Oak Run Community Library
27668 Oak Run to Fern Rd
Oak Run, CA 96069
Phone: (530) 472-1211
Shasta Public Libraries - Redding Library
1100 Parkview Ave
Redding, CA 96001
Phone: (530) 245-7250

Public Comments

The Draft IS/MND was available for public review and comment during the public review period May 26, 2023 – June 26, 2023. The comment period has concluded. 

All comments have been addressed in the Final IS/MND.

Documents Available for Review

Public documents related to the CEQA review of the Round Mountain 500 kV Area Dynamic Reactive Support Project can be found here:

Draft Initial Study/ Mitigated Negative Declaration (May 26, 2023)
Notice of Intent (May 26, 2023)
Notice of Completion (May 26, 2023)
Final Initial Study/Mitigated Negative Declaration (August 30, 2023)
Notice of Completion (August 30, 2023)

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 (see links below) 
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 Behavior Modeling Report

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

CPUC Requested Information

CPUC Data Request 1
(May 31, 2022)   
   PG&E Response to Data Request 1 (July 6, 2022) 

CPUC Data Request 2
(July 15, 2022) 
   LSPGC Response to Data Request 2 (July 29, 2022) 

CPUC Data Request 3
(July 15, 2022) 
   PG&E Response to Data Request 3 (July 29, 2022) 
       Attachment 1
       Attachment 2

CPUC Data Request 4
(July 25, 2022) 
   LSPGC Response to Data Request 4 (August 11, 2022) 

CPUC Data Request 5 (August 23, 2022) 
   PG&E Response to Data Request 5 (September 1, 2022) 
       Attachment 1

CPUC Data Request 6 (July 19, 2023) 
   LSPGC Response to Data Request 6 (July 26, 2023) 

CPUC Data Request 7 (August 1, 2023) 
   LSPGC Response to Data Request 7 (August 9, 2023) 

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 Project. The 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 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