J1772 was a Japanese standard, wasn't it? I believe that the Europeans weren't wild about it but SAE thought it worked well and went with it. To some extent the new SAE standard addresses European concerns.TonyWilliams said:3. ChadeMo is Japanese (obviously bad)
Seems to me the talking point I see here is: "I have a car with a CHAdeMO port therefore anyone who supports a different standard, regardless of how much better it might be, is bad because [fill in any reason]." I see a lot complaining, some juvenile name calling, but few actual reasons why CHAdeMO is superior. The only reason I've seen advanced is line noise and that's been refuted.
In truth the SAE standard won't change how fast DC chargers are (or aren't) rolled out. Given the current grid and regulatory system, which aren't going to change anytime soon, the limiting factors for DC charging are (1) the small size of the battery packs and (2) the lack of vehicles on the road. With respect to the former, with the size pack of the pack in the Leaf even DC charging every mile wouldn't enable long distance travel. Very few people are going to want to drive for less than an hour and spend half an hour charging. With respect to the latter, to get utilization rates up as to cover even short term variable costs you'd need something like 30,000 cars in San Diego not 30,000 cars worldwide. The utilization rates for the installed DC chargers is probably embarrassingly low. (And note as the packs get larger utilization rates may go down not up). Getting power to DC chargers and demand charges are a big deal. Supporting two or even three charging ports is relatively minor.
Worst case you're still 25% better off than with CHAdeMO. With CHAdeMO you have two plugs on the car and two plugs on the charger. With SAE you have one plug on the car and two on the charger.cwerdna said:The goofier part is that it seems a # of (most?) current vehicles w/J1772 wouldn't be able accept the SAE frankenplug (due to lack of space below the connector) unless that lower portion could be separated or unless a charging station provides two connectors: J1772 with and w/o Frankenplug .