Antelope-Pardee 500-kV Transmission Project

Antelope-Pardee 500-kV Transmission Project

The Antelope-Pardee 500-kV Transmission Project (proposed project) would involve the construction of a new 25.6-mile 500-kV transmission line between the existing Antelope and Pardee substations. The Antelope Substation is located in the City of Lancaster and the Pardee Substation is located in the City of Santa Clarita, both of which are located in northern Los Angeles County. To accommodate construction, certain 66-kV and 500-kV facilities would be removed and certain 66-kV and 12-kV facilities would be relocated. The proposed project route would be constructed within an existing right-of-way (ROW) for 22.8 miles, of which 17.5 miles would be widened. Approximately 13 miles of the proposed project would be located in an existing ROW within ANF, which would be widened from 100 feet to 160 feet. Construction of a new ROW would be required for 2.8 miles of the proposed project route. The proposed project would help to accommodate up to 4,400 megawatts (MW) of potential proposed wind generation north of Antelope, including a proposed 201-MW wind project to be located 8.5 miles northwest of the Antelope Substation. The 500-kV transmission line would initially operate at 220 kV, and would serve to reduce the existing loading on the Antelope-Mesa 220-kV transmission line to 330 MW, which is within the allowable line conductor thermal limits. By increasing the transfer capability of the Antelope Substation, the project would allow the proposed 201-MW wind generation to be safely transferred to serve system load. The proposed project would include a 1,145 feet by 1,185 feet expansion of the Antelope Substation, an upgrade of the Antelope Substation from 220 kV to 500 kV, and the relocation of several existing 66-kV subtransmission lines near the Antelope Substation. Prior to the expansion of the substation, three 1,000-foot, double-circuit 66-kV line sections currently located southwest of the substation would be relocated within a new 200-foot-wide ROW. The proposed project would also include the construction of two telecommunication paths between the Antelope and Pardee substations. The primary path would use the existing SCE infrastructure, while the secondary path would be provided by Optical Ground Wire that is installed on all new transmission lines.

Lancaster, Palmdale, Santa Clarita

Los Angeles

California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Department of Parks and Recreation, California Energy Commission, California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Lahontan Victorville Region 6 (RWQCB), California Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB), California Santa Monica Mountains Conservancy (SMMC), Caltrans, Division of Aeronautics, Office of Historic Preservation, Resources Agency, California Department of Transportation, District 7 (DOT), Department of Water Resources

California Department of Transportation, District 7 (DOT), Department of Water Resources

Power:Electric Transmission Lines (Megawatts 500 kV)

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