Riverside Transmission Reliability Project (RTRP)
The Riverside Transmission Reliability Project (RTRP) provides Riverside with a critical second connection to the California grid. Riverside needs additional power capacity to serve existing and projected electrical demand and avoid blackouts.
In March 2020, the California Public Utilities Commission (CPUC) unanimously voted to approve the Riverside Transmission Reliability Project (RTRP). Further updates to this page and the process will be coming shortly.
Learn more about the CPUC’s decision.
Learn why Riverside's second connection to the grid is so critical.
Show Your Support
Help us urge the CPUC to approve the RTRP project by submitting a letter of support.
Learn about route and our need for expanded capacity.
Answers to the questions you may have about RTRP.
Stay up-to-date with the latest news from RPU.
Why is it important?
Currently, all of RPU's imported energy comes through a single power connection from Southern California Edison's (SCE) Vista Substation, located in the city of Grand Terrace. Through that connection, only a certain amount of energy, 557 megawatts (MW), can reach the city.
If the electrical needs of RPU customers exceed that amount of energy, there is not any way to bring additional power into Riverside, as there are no other outside connections. While over the past ten years RPU has built a number of power generation plants within the city that can help supply extra energy in time of peak demands and emergencies, they do not provide reliable, long-term solutions to the city's capacity shortage, nor will they be enough to meet current and projected energy load growth.
The RTRP would create a second connection to outside power lines, and a second substation, that would reduce dependence on a single substation and connection, increase the amount of energy RPU could import, and provide greater flexibility to expand our energy delivery system to meet Riverside's growing energy needs well into the future. Show your support.
Riverside Transmission Reliability Project (RTRP) Anticipated Timeline for Next Steps Toward Construction (As of Nov 1, 2018)
|The California Independent System Operator (CAISO), which is the independent organization responsible for planning the statewide transmission grid, conducted studies concluding a need for the project||June 2006|
|Riverside Public Utilities (RPU) began holding public meetings for the project||January 2007|
|RPU issued the Draft Environmental Impact Report for public review||August 2011|
|City of Jurupa Valley filed a California Environmental Quality Act lawsuit||March 2013|
|City of Jurupa Valley's claims were rejected, in the Los Angeles Superior Court||May 2014|
|SCE filed a Certificate of Public Convenience and Necessity (CPCN) application with the California Public Utilities Commission (CPUC) for approval to construct the project||April 2015|
|SCE filed an amended CPCN application with the CPUC||April 2015|
|Application deemed complete by CPUC||January 2017|
|Publication of Draft Subsequent EIR||April 2018|
|Public Comment Period on Draft Subsequent EIR (45 Days)||April-May 2018|
|Publication of Final EIR||October 2018|
|2020 CPUC Decision||Spring 2020|
- Volume 2
- Appendix A - IS-NOP
- Appendix B - Technical Reports
- Appendix B Cover Page
- Visual Tech Report
- Air Quality Tech Report
- Biology Tech Report
- Cultural Tech Report
- Earth Tech Report
- Water Tech Report
- Land Use Tech Report
- Paleontology Tech Report
- Traffic Tech Report
- Appendix C - EMF Statement
- Appendix D - Siting Study
- Appendix D - Siting Study Maps
- Appendix E - Native American Communications
- Appendix F - First Search Summary
- Appendix G - American Indian Social Impact Assessment