DETROIT (AP) — Electric car maker Tesla Motors Inc. promises to boost the number of fast-charging stations in the U.S. and Canada to make cross-country travel by electric car possible in the next year.

The company said Thursday that by the end of next month, it will triple the number of charging stations it runs from the current eight, and the number will go to around 100 in the coming year, putting stations within reach of almost the entire populations of both countries.