Southern California Edison (SCE), the largest electric supply company, initiated the Alberhill System project in Riverside County. This project will supply reliable power and satisfy the electricity demands of Riverside County.
- Southern California Edison planned the projected Alberhill Project to boost electrical system dependability and to provide the area’s long-term anticipated electricity demand. SCE predicts that the launched Alberhill Project would take around 28 months to complete.
- The planned Alberhill Project will benefit Riverside County’s neighboring unincorporated communities and the cities of Lake Elsinore, Canyon Lake, Perris, Menifee, Murrieta, Hot Springs, Temecula, and Wildomar.
Southern California Edison’s Alberhill System Project
In unincorporated western Riverside County, near the northwest corner of Temescal Canyon Road and Concordia Ranch Road intersection, on 34 to 40 acres of a 124-acre site, it is planned to construct the Alberhill Substation.
To connect the planned Alberhill Substation to the current Serrano-Valley 500-kV transmission line, the two new 500-kV transmission lines would each go northeast for about 1.5 miles. It would take about 11.5 miles to go southeast from the planned Alberhill Substation to Skylark
Substation and from Skylark Substation to Newcomb Substation for the 115-kV sub-transmission line improvements and construction (approximately 9 miles).
“The Alberhill project is critical for Southern California Edison to satisfy the electricity demand and reliability needs from all neighboring communities,” said Paul McCabe, senior advisor with SCE’s Asset Strategy & Planning group. “It will support continued population growth in the area, improve reliability, and provide important resiliency against threats such as climate change, wildfires, and earthquakes and ensure reliable power delivery for decades.”
Main Components of the Alberhill Project
The following attributes would be part of the planned Alberhill Project:
- Build an Alberhill Substation, a 1,120 MVA 500/115 kV substation with a maximum expansion capacity of 1,680 MVA.
- To link the planned substation to the current 500-kV Serrano-Valley transmission line, two 500-kV transmission lines must be built.
- 11.75 miles of new double-circuit 115-kV sub-transmission line should be built, and 11 miles of single-circuit 115-kV sub-transmission line to be taken down, mainly from the existing ROW.
- A single-circuit 115-kV sub-transmission line of about 3 miles should be installed, with a distribution line underbuilt on the sub-transmission line structures. A distribution line of about 3 miles should be taken out of the existing ROW.
- Install a second 115-kV circuit on a single-circuit 115-kV sub-transmission line about 6.5 miles long (the single-circuit line is to be built as part of the planned Valley-Ivyglen Project).
- Install fiber optic links around the proposed Alberhill Substation and many of the existing 115/12-kV substations, both overhead (9 miles) on parts of the new or modified sub-transmission lines and underground (1 mile).
- The construction of a 120-foot microwave antenna tower at the site of the potential Alberhill Substation. Install microwave telecommunications dish antennas at the Serrano Substation, the projected Alberhill Substation, and the current Santiago Peak communications site. Install telecommunications hardware at additional substations, both current and future.
- Five of the fourteen Valley South 115-kV System substations (Ivyglen, Fogarty, Elsinore, Skylark, and Newcomb) would be transferred to the projected Alberhill 115-kV System.
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This Alberhill Project will supply power and resolve electrical issues throughout Riverside County. It will also benefit Riverside County’s neighboring unincorporated communities and the cities of Lake Elsinore, Canyon Lake, Perris, Menifee, Murrieta, Hot Springs, Temecula, and Wildomar.