Excerpt from Forbes Magazine
10 EV Charging Lessons Learned From Portland’s Electric Avenue
They have also found that “every object is a potential target for either tagging, or even people putting their litter or trash on it” (some chargers have a sloped top, Beard noted, which prevents passersby from putting a beer bottle or coffee cup on top). “We’ve learned that we have to go out and clean it every day – have to walk the site and make sure that the avenue is ready for use. Whose job was it?” he said. They hadn’t thought through the operations and maintenance.
6) The industry needs a standard for charger-to-car communication: Level I and Level II EV chargers have a standard SAE J1772 connector (analogous to a gas pump, or the USB port on your laptop) that enables any EV to connect to any charger. “The physical connectors all worked fine,” said Beard. “But the communication routine seems to have been out of sync.” In some cases, EV owners received error messages inside the car because the cars and chargers couldn’t communicate.
The glitches weren’t causing damage, Beard said. “Because we had co-located all these devices, it triggered dialogue and exchange, and got our local providers in direct and frequent communication with GM and Toyota and Nissan. These early standards weren’t mature enough; they’re far more reliable today than they were six months ago.” Beard said he believed Electric Avenue played a role in trouble-shooting the necessary adjustments.
Full Article here: