SageBrush wrote: ↑
Sat Feb 20, 2021 7:07 pm
alozzy wrote: ↑
Sat Feb 20, 2021 6:42 pm
Mass adoption and scale necessitates a single L2 standard and a single DC L3 standard that's viable for the next 20 years (at a minimum). So, ALL these proprietary BS "standards" have to go.
Any mass infrastructure rollout needs to be delayed until the EV industry and governments figure this out. The world wide EV charging infrastructure cost is going to be staggering, so there's no way we can afford to get this wrong!
I agree that single standards are preferable but the lion's share of the cost is not the socket or the cable.
If the only difference between CCS, CHADEMO, Tesla Supercharger, etc was the socket or connector, then I would agree that "the lion's share of the cost is not the socket or the cable"...
But that's the problem - a single "socket" type, to which EV owners plug-in an adapter cable to the DC charger, doesn't exist. That's what's missing and why I'm arguing that standardization is a necessity at this point
Instead of deploying a simplified DC charging machine, that's standardized with a universal "socket", there exist literally hundreds of different DC charging machine designs with little or no standardization. Not only does that make the machines more expensive to design and manufacture, but it also confuses EV newbies. Enthusiastic early adopters have been willing to put up with the confusion of machine designs, connector types, etc but your average car owner won't be so forgiving.
Case in point - typical combo DC chargers that are designed to provide both CHADEMO and CCS charging options, but they can only supply power to one at a time? Just plain stupid...
It's like the lack of standardization for AC mains voltages and frequencies all over again, which resulted in a mish mash of residential voltages (110V/120V/220V/230V/240V) and frequencies (50 vs 60 Hz) across the world - not to mention differences in 3-phases supplies too.
That's why I'm arguing that Biden's plan to deploy 500,000 new EV chargers, before a single DC charging standard exists, is likewise dumb. To invest an estimated $5B on a mish-mash of EV DC fast chargers is a poor long term investment IMHO.
Vancouver, CA owner of a 2013 Ocean Blue SV + QC, purchased 01/2017 in WA
Zencar 12/20/24/30A L1/L2 portable EVSE
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