Broadway and Minor Traction Substation - Seattle Electric Transit Substation

Broadway and Minor Traction Substation is an operational electrical substation located in Seattle, Washington, United States. Owned by King County Metro, the facility plays a key role in powering the region's electric transit infrastructure, including trolleybuses and light rail systems. As a traction substation, it converts high-voltage AC power to the DC voltage required by transit vehicles, ensuring reliable service for commuters. The substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), which set reliability standards for the bulk power system. Traction substations typically operate at medium voltages (e.g., 12-34.5 kV) and are critical to urban transit networks. The facility is part of King County Metro's extensive electrical infrastructure, which supports one of the largest bus fleets in the United States. Environmentally, the substation contributes to reduced emissions by enabling electric public transit, which lowers the carbon footprint compared to diesel buses. Its urban location in downtown Seattle places it within a dense network of utilities and transit lines, supporting sustainable urban mobility. The facility's operational status ensures continued service for thousands of daily riders, highlighting its importance to the city's transportation goals.

Located in downtown Seattle, the substation supports electric public transit, reducing reliance on fossil fuels and lowering urban air pollution. Its operation aligns with Seattle's climate goals by enabling zero-emission transit options. The facility's urban setting means it integrates with existing infrastructure, minimizing additional land use impacts.