Power Santa Clara Valley Project
Power Santa Clara Valley Project
The Power Santa Clara Valley Project (also known as the Metcalf – San Jose B HVDC Project) is a reliability-driven project that will strengthen the electrical grid in San José by providing a strong, new source to the area. The project will support economic development and provide better access to cost-effective, renewable energy to meet the needs of residents and businesses. The project is located in Santa Clara County, California, and is anticipated to enter into service in 2028.
Updated by CAISO in 2024 to help meet accelerating grid demands, the project scope includes two new high-voltage direct current (HVDC) terminals, which provide the ability to control power flows. The Skyline terminal in downtown San José will include 230 kV switchgear and will interconnect to Pacific Gas & Electric’s (PG&E) existing San Jose B substation. The Grove terminal in south San José will include 500 kV switchgear and will interconnect to PG&E’s existing Metcalf substation via a new approximately one-mile 500 kV underground transmission line. A new approximately 13-mile ±320 kV HVDC underground transmission line will connect the two terminals.
Construction is planned to begin in early 2026 after necessary permits, agreements, and land rights are received. The construction phase of the project is anticipated to be approximately two years in duration, concluding with the energization and testing of the new project facilities.
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