Siemens traction power technology is chosen for Seattle’s light rail expansion

Tuesday, February 20, 2018 1:00 pm EST


Seattle, WA
  • Siemens will provide traction power and medium voltage substations for new Northgate and East Link lines of Seattle Sound Transit

Siemens has been selected to provide the power infrastructure for Seattle’s latest expansion – the Northgate and East Link lines – of the Seattle Sound Transit light rail system.  Siemens will supply 13 traction power substations (TPSS), two medium voltage substations (MVSS), and one cross passage tunnel tie station on the Northgate and East Link -- and fully integrate these additions into the existing infrastructure. It will also upgrade one existing substation supplied by Siemens in 2008.

The Northgate (4.3 miles) and East Link (14 miles) lines and are set to open in 2021 and 2023 respectively. Passengers in Bellevue and Northgate will benefit from an easier and less congested commute as these new traction power stations enhance the efficiency and operation of the regional transit system. Siemens’ proven expertise in engineering expansions and upgrades will ensure seamless integration into the existing rail system which carried 43 million passengers in 2016.  

“Siemens is proud of its role in helping Seattle manage its population and ridership growth through better and more reliable public transportation,” stated Andreas Thon, Vice President of Turnkey and Rail Electrification, North America.  “Seattle fully appreciates the sustainability and operational benefits of having a strong traction power and electrification infrastructure and this is one reason why it is consistently considered one of the most sustainable cities in the world.”

The new project extends Siemens existing technology partnership with Sound Transit, having previously provided the same TPSS and MVSS substation infrastructure on the University Link and South Link lines. Siemens was also chosen by the transit agency to deliver a total of 152 new light rail vehicles for the Sound Transit system, built out of the company’s Sacramento, CA manufacturing hub.

In addition to the light rail infrastructure investments, Seattle utilizes Siemens software that intelligently syncs and manages the city’s traffic system.

This press release, photos and additional material are available at


Siemens’ Mobility Portfolio: Siemens Rail Electrification and Rail Automation business units are part of the Siemens Mobility Division which provides efficient and integrated transportation of people and goods by rail and road – including all products, solutions and services regarding mobility. Siemens designs and manufactures across the entire spectrum of rolling stock including commuter and regional passenger trains, light rail and streetcars, metros, locomotives, passenger coaches and high-speed trainsets. In the U.S., Siemens is providing rail vehicles, locomotives, components and systems to more than 25 agencies in cities such as Washington D.C., New York, Boston, Chicago, Seattle, Miami, Orlando, Philadelphia, Denver, Phoenix, Baltimore, Salt Lake City, Minneapolis, Houston, Portland, Sacramento, San Diego, St. Louis, Atlanta and Charlotte. Cities also rely on Siemens to provide traction-power substations and electricity transmission, as well as signaling and control technology for freight and passenger rail and transit systems.  Siemens has transportation manufacturing hubs in: Sacramento, CA; Louisville, KY; Marion, KY; Pittsburgh, PA and a key employment and R&D location in New York, NY.

Contact for journalists:

Elizabeth Cho

Tel.: 917-622-2413; E-mail: 

Siemens Corporation Siemens Corporation is a U.S. subsidiary of Siemens AG, a global powerhouse focusing on the areas of electrification, automation and digitalization. One of the world’s largest producers of energy-efficient, resource-saving technologies, Siemens is a leading supplier of systems for power generation and transmission as well as medical diagnosis. With approximately 372,000 employees in 190 countries, Siemens reported worldwide revenue of $92.0 billion in fiscal 2017. Siemens in the USA reported revenue of $23.3 billion, including $5.0 billion in exports, and employs approximately 50,000 people throughout all 50 states and Puerto Rico.