Riverside Transmission Reliability Project

Riverside (Calif.) Public Utilities’ Riverside Transmission Reliability Project includes approximately 10 miles of new double-circuit 230-kV transmission line. The project also includes a new 230/69 kV electrical substation and about 11 miles of new 69-kV lines. The new 230-kV line would connect the proposed substation, located on RPU-owned land to existing 230-kV transmission lines owned by Southern California Edison. Six new 69 kV lines would also connect the proposed substation to RPU’s electrical system, according to RPU.  The approximately $222m project is expected to be completed in 2023.

Project Sponsor Line Miles Voltage (kV) From State To State Year in Service
Riverside Public Utilities 10 230 CA CA 2023
Estimated Costs ($M) Voltage Type Project Status Project Group Origin Point Destination Point
222 Planned Wildlife Substation Mira Loma Substation
Interstate Build Start NERC ISO/RTO Country Project Partners
2020 WECC CAISO US Southern California Edison