The largest trade fair and conference event for electric mobility will be held in Stuttgart in 2017 – the "Electric Vehicle Symposium & Exhibition" (EVS). Every 12 to 18 months, researchers, government representatives and industry experts from around the world gather to get the latest picture of all forms of electric mobility, its technologies and other issues, such as battery and fuel cell drives, and discuss new trends. The event venue rotates between North America, Europe and Asia.

http://www.messe-stuttgart.de/en/evs30/