The signs at public charging stations in DE are unfortunately not always uniform. On this website the topic is described in detail:http://www.vzkat.de/…/Electric vehicle charging stations.htm In my city you use the combination sign 314 with additional sign 1010-66 (this looks like so). In this combination only vehicles with e-marks may load there. A question with the city revealed that pure BEV without e-marks during the charging period This is a violation of the law “unauthorised parking for electric vehicles” which is due to be paid 55€.