Tesla Supercharger network expansion may have slowed in the UK due to a legal battle against a rival energy provider, Ecotricity. Tesla's Supercharger stations provide Tesla owners with free charges so they can make the most of their drives. Just like gas stations, location is important. If a station is too far off the main thoroughfare, accessing it isn't a bonus. It's a hindrance. To get the best real estate for its Superchargers in the UK, Tesla had partnered with another EV charging station provider, Ecotricity.