Walmart has expanded the installation of electric vehicle charging stations to include locations in Washington State.

The company has confirmed that stores in Tacoma, Lacey, Vancouver, Spokane Valley, Mount Vernon, Everett and Covington have become part of its national network of charging stations.

Walmart is making improvements in collaboration with Electrify America, a Volkswagen subsidiary. It began the installation campaign last summer at its Hope, Arkansas store.

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Sources include Walmart, The News Tribune