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TEPCO/CHAdeMO Level III "quick" charging station/connector

Discussion in 'Supercharging & Charging Infrastructure' started by doug, Nov 16, 2009.

  1. Norbert

    Norbert TSLA will win

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    That is more playing on that a 300 mile battery is almost as far as you would want to drive. And even then trying to imagine the most optimistic scenario possible. Kind of 100 miles close to saying: I don't need a fast charger at all. ;) In some cases, it may be like you describe it.

    Another scenario is that you make a round trip on a day, coming back home at night, without necessarily staying at places that have a charger. So you'll be making stops in any case, but not (necessarily) next to an available charger. Or even on a one way trip you'd like to (also) stop at a place without charger. In either case, you don't need additional resting.

    I agree that a Model S could make much better use of 50 kW chargers than a Leaf, and it may be enough for you as a dedicated EV enthusiast. But when you make a longer trip as an average person, you want the charging to take away as little as possible from the few hours remaining in your day. You'll want to decide for yourself where to spend that hour, or 40 minutes. You won't be thinking "I'll have full dinner here, instead of where I am going, so that I can support EVs". You'll be frustrated that you have no choice. You'll be thinking "I wish I had an ICE, so I could finish my trip like everyone else".

    And yes, for getting mainstream acceptance for "EVs are the future", to get car companies to support battery technology instead of hydrogen, even 90kW may be slow. But, at least, much closer to happiness, than 50 kW.
     
  2. stopcrazypp

    stopcrazypp Well-Known Member

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    I haven't seen any indication the Model S will have higher voltage than the Roadster (375V). The Roadster is a 56kWh pack. Model S has three sizes: 40kWh, 60kWh, and 85kWh. It doesn't make any sense for them to have different pack voltages, so I suspect it'll only be slightly higher than the Roadster's, if at all.

    Tesla claims 80% in 45 min (in 85kWh pack, so 90kW). Nissan claims 80% in 30 min (24kWh pack, so 38kW), so you may be right about Model S having better utilization, although it seems Tesla claims the Model S can fully utilize 90kW also.

    But keep in mind the Model S will likely get less range per kWh. Higher than 50kW/125A is probably beyond the limits of a small battery pack like in the Leaf (and iMIEV), but for larger battery packs (like the 85kWh Model S's) it's under-utilizing the charging power available. SAE has previously announced 90kW/200A for J1772-DC and is considering up to 250kW, so I definitely think that is the better choice for long distance travel.

    For long trips in a gas car, on average I stop about 30 min every 4 hours (about 260 miles as you say), so a charging speed of ~520mph would be on par.
    50kW = 176mph ideal = 89 min stop for every 4hr/260mi
    90kW =317mph ideal = 49 min stop for every 4hr/260mi

    That's a pretty significant difference to me; 90kW is getting closer (not quite there) but 50kW is pretty far from on-par.

    What would be really interesting is what connector the RAV4-EV uses. If it uses CHAdeMO (a possibility since Toyota is part of CHAdeMO) it'll be a big boon for CHAdeMO. If it uses Tesla's connector, it'll be a boon to Tesla (and CCS by extension). Most likely though it won't have DC charging (battery is too small given the li-cobalt chemistry).
     
  3. Norbert

    Norbert TSLA will win

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    Such adjustments are meaningful in specific use cases (close to full charge each time), but even then, only for current batteries. The Leaf's battery packs will improve to make better use of CHAdeMO's 50 kW, and the Model S's battery packs will improve to make better use of 90 kW (in so far as limited, which we don't really know yet).
     
  4. TEG

    TEG TMC Moderator

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    New sign at VW ERL Blink CHAdeMO:
     

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  5. TEG

    TEG TMC Moderator

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  6. Kipernicus

    Kipernicus Model S Res#P1440

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    I enjoyed watching this video of charging both a Leaf and iMiev at a 350Green fast charger (looks like in Chicago).
    Agree with his assessment of the $7 fee - much more expensive than charging at home and even more expensive than filling up a prius (given the # of miles range you get for $7), but this is as it should be since fast charging should only be used when really necessary. The price point helps to keep it available for those who need it.


    http://visforvoltage.org/forum/12281-using-350greens-fast-charger-stations-charjit
     
  7. doug

    doug Administrator / Head Moderator

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    #308 doug, Jul 11, 2012
    Last edited by a moderator: Mar 13, 2016
  8. dpeilow

    dpeilow Moderator

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  9. dhrivnak

    dhrivnak Active Member

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    There are many CHadeMo quick chargers in operation at Cracker Barrel, a perfect place for a meal. So even if at a half charge when traveling it is a significant range extender.
     
  10. widodh

    widodh Model S 85 and 100D

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  11. TEG

    TEG TMC Moderator

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    So much for "electric highway" (US5) at least as far as California is concerned:
    chademo1.jpg
     
  12. 100thMonkey

    100thMonkey Member

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    Look at all those CHAdeMO stations in WA and OR! On one hand it's pathetic how far behind CA is, on the other hand it's a miracle there are already so many considering what a PITA is to find hosts and get them installed. The sooner Tesla comes out with a CHAdeMO adapter the better, we want to go on a looong road trip with our S!
     
  13. doug

    doug Administrator / Head Moderator

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