The current J1772 protocol isn't really suited for EV charging imho. While it currently does the job, it doesn't handle anything like delayed charging start or anything. For example, you have a 100A connection (1-phase or 3-phase doesn't matter in this case) and you want to connect 10 chargers to it. The current way it's done is that each car has to get at least 6A or the car doesn't charge. The J1772 protocol doesn't allow anything like: "Hey, welcome! You're connected now, but I'll let you know when you can start charging!" Grid connections are a problem and usually also very expensive to upgrade. For condo's, apartments, parking garages, airports it would be great if they could install a large amount of chargers which share a small grid connection. Using load balancing and such they can charge cars and even prioritize different vehicles. Is anybody aware of any progress being made on this side?