![Tesla Model S at Supercharger site in Ventura, CA, with just one slot open [photo: David Noland]](http://images.hgmsites.net/tmb/tesla-model-s-electric-car-road-trip-upstate-new-york-to-southern-california-photo-david-noland_100500011_t.gif)
Tesla will undertake a major expansion of its Supercharger network of DC fast-charging stations this year. The Silicon Valley automaker is already one of the most committed to offering widespread DC fast charging, positioning the stations as a way for customers to complete longer journeys more easily. After expansion slowed in 2016, Tesla hopes to...