Seven of the world’s largest carmakers are launching a new electric vehicle charging network, in an unusual display of cooperation that’s designed to address one of the major deterrents for would-be electric vehicle purchasers.

The goal is to open 30,000 new high-speed fast-chargers in North America, powered by renewable energy. If achieved, that would be significantly larger than Tesla’s current Supercharger network, and would nearly double the number of fast chargers available in the U.S. today. (In this case, a “charger” refers to an individual plug. A charging station at a single location often has multiple chargers.)