Their first pilot demonstration will take place in San Francisco. The autonomous charging station will allow self-driving EV fleets to connect to Electrify America's 150kW DC fast chargers without human intervention. The cars will park themselves inside a standard parking space, and Stable's robot will get them hooked up to the power source.

"Autonomous vehicles will play an important role in the future of driving, particularly with fleets, and tailored charging options for self-driving EVs will be critical to develop that effort," said Wayne Killen, director of infrastructure planning at Electrify America. The pilot program will allow the companies to test the hardware, back-end solutions and potential business models. If all goes according to plan, it's expected to be ready in early 2020.