I would really like to know what was the real reason to use home plug green for communication between electric car (#EV) and #charger.
#Homeplug green was intended as low bandwith "ethernet" (10Mb) over power line. Its spes has just 650 pages there is probably only one phy manufacturer and in charger, it doesn't even use power line but CP pin which signalizes how much AC current can car draw.