Sound Transit Orders 33 Enviro500EV Electric Buses for Seattle

Sound Transit has ordered 33 Enviro500EV electric double-decker buses from Alexander Dennis for use in the Seattle metropolitan area.

The new buses will be delivered in 2026 and will be built in the US by Alexander Dennis’ partner, Big Rig Manufacturing.

This order will mark the introduction of Alexander Dennis’ next-generation electric bus technology to North America.

Sound Transit and Alexander Dennis with the Enviro500EV
Sound Transit and Alexander Dennis with the Enviro500EV

The new electric buses will operate on Sound Transit’s new Stride bus rapid transit (BRT) route along Interstate 405, connecting communities along the north, east and south of Lake Washington.

Stephen Walsh, Vice President for Alexander Dennis in North America, said:

“We are excited to once again be working with our long-standing customer Sound Transit in the Puget Sound region who have selected our Enviro500EV with next-generation technology for their new Stride bus rapid transit service.

“This award highlights the resurging demand for Alexander Dennis’ double deck buses in North America following the relaunch of Buy America compliant production with Big Rig Manufacturing. The order was placed after we completed extensive route mapping exercises in conjunction with Sound Transit, using automotive-grade modelling to fully understand the operational requirements. This ensures that the Enviro500EV will take Stride in their stride and give riders a smooth journey experience.”

The Stride Enviro500EV buses will feature the Voith Electrical Drive System and will use inductive opportunity charging from InductEV.

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