Subject to required approvals, the City and County of San Francisco intends to purchase all of Pacific Gas and Electric Company (PG&E’s) distribution assets and substantially all of PG&E’s transmission assets that are needed for the city to provide reliable electricity service to customers within San Francisco. These assets generally include substations, transformers, transmission and distribution lines, supporting equipment, operational facilities, relevant records, and other facilities (e.g., streetlights). The project would also include the transfer, assignment, or assumption of PG&E-owned fee property, easements, rights-of-way, lease agreements, permits, and other land-related agreements, as well as new lease or other agreements between the city and PG&E as necessary for safe and reliable operation and maintenance of the transferred assets. In addition, the SFPUC would acquire property rights as needed for the construction, installation, operation, and maintenance of proposed infrastructure on public land or private lands.
As part of the transfer, certain PG&E facilities outside of the city limits must be physically separated from PG&E's electricity grid within the city. To do so, the SFPUC would modify some existing substations, construct new distribution feeders, and install distribution infrastructure to connect and disconnect existing electric lines. The environmental review discusses those components that would require physical changes to the environment. The project area, as defined, includes areas where excavation is proposed, as well as any above- or below- ground connection and disconnection locations. This includes underground power distribution lines and vaults, new equipment at four existing substations, and distribution system separation work. The portion of the project requiring new construction or modifications to existing facilities would primarily be in the southern portion of San Francisco and along the county border in the northern portions of Brisbane and Daly City. The main distribution line alignment would be approximately 5 miles long and installed within streets, sidewalks, and other publicly-owned land. It would extend from near Junipero Serra Boulevard and Holloway Avenue on the west, south to Brotherhood Way, and east along Alemany Boulevard and Geneva Avenue to the Martin substation in Brisbane. New equipment would be installed within the following substations: Martin (Geneva Avenue near Bayshore Boulevard); Potrero (Illinois Street near Humboldt Street); Plymouth (Plymouth Avenue near Broad Street); and, Randolph (Byxbee Street near Randolph). Disconnecting and connecting distribution lines between overhead poles and underground vaults could occur either above- or below-ground, and would be performed in small, discontinuous areas generally located near the county border.