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New Higher Power DC Charging Standard Coming From China

Discussion in 'Charging Standards and Infrastructure' started by quantumslip, Jun 18, 2018.

  1. quantumslip

    quantumslip Member

    Joined:
    Mar 3, 2015
    Messages:
    254
    Location:
    Houston, TX
    Some of y'all may already know that China has their own set of charging standards for AC and DC charging. Tesla had to redesign their car to support this:

    Tesla unveils new dual connector charge port design for Model S and Model X

    The DC port is new, and the /C port is a reversed Type 2 port.

    Now while reading the news about Chademo's meeting, it seems that China is working on a more higher powered DC port. From here (read page 43 onward): http://www.chademo.com/wp2016/wp-content/japan-uploads/2018GA/CHAdeMO2018GA.pdf

    overview1.PNG
    overview2.PNG

    It looks like the SE side may be backwards compatible with the EV side that use the other GB/T DC standard. It also seems like based on google translate that Japan and China may try to have some compatibility around the DC side of things.

    900 kW max charging does sound like a lot, though it would work great for something like the Tesla Semi.
     
    • Informative x 3
  2. BioSehnsucht

    BioSehnsucht Model 3 LR

    Joined:
    Apr 1, 2016
    Messages:
    1,098
    Location:
    DFW, TX
    Don't forget Tesla can only charge at ~400V nominal. So not all those standards are useful (some provide plenty of power, some are much slower than Tesla proprietary).

    1500V x 600A = 900kW for New GB/T would peak out at presumably 400V x 600A = 240kW which actually is still higher than current Tesla proprietary, so with the appropriate hardware (either adapter or built into vehicle) Teslas could still use New GB/T to their (the vehicle, not the charger)'s fullest capacity.

    But old GB/T would peak out at 100kW (vs 237.5kW rated peak) on a Tesla, and existing Chademo standard (there's a new one planned but I doubt any real public hardware exists yet) would max out at 400V x 125A for 50kW (vs 62.5kW rated due to peak of 500V x 125A). Similarly CCS 1.0 is 400v x 200A = 80kW max, while CCS 2.0 will be 1000V x 400A (limited to 400V x 400A and thus 160kW for Tesla, again better than existing superchargers).
     

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