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

doug

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Nov 28, 2006
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1,015
SF Bay Area

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doug

Administrator / Head Moderator
Nov 28, 2006
16,894
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SF Bay Area
Here's a 2008 presentation by TEPCO on those quick-charging stations.

http://www.iea.org/work/2008/transport/TEPCO.pdf

Specifications
-Type: Switching type, constant current power supply
-Input: 3-phase 200V
-Maximum DC output power: 50kW
-Maximum DC output Voltage: 500V
-Maximum DC output Current: 100A
Explains the confusion with the i-MiEV quick charge connector. For some reason Mitsubishi keeps quoting the input of the charging station rather than what the car sees.
 

ChargeIt!

Member
Jul 24, 2008
619
1
Some photos of the Vacaville install ...
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ChargeIt!

Member
Jul 24, 2008
619
1
Ready for Nissan Leaf to make the trip SF <-> Sacramento?

Maybe. I am trying to get more info. I thought though that all the early deliveries (at least the "public" production ones) would have the fast-charge port disabled (initially at least).
 

TEG

Teslafanatic
Aug 20, 2006
21,763
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doug

Administrator / Head Moderator
Nov 28, 2006
16,894
1,015
SF Bay Area
That thread was more about a faster type of "fast" charging or fast charging in general. I'll pull together the TEPCO specific stuff some time tomorrow.


Edit: Done
 
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doug

Administrator / Head Moderator
Nov 28, 2006
16,894
1,015
SF Bay Area
Given that the Mennekes connector is capable of Level III (via 3 phase), I wasn't aware that these are being installed in Europe as well.

Europe's first commercial fast-charging station officially opens to public - ABG
europe-first-fast-charger-epyon-open.jpg

Late last week, Epyon unveiled Europe's first commercial electric vehicle (EV) fast-charging station at a fueling depot in the Netherlands.


First Commercial Fast-Charging Station for EVs in Europe Enters Operation - edmunds.com
Epyon-fast-charger-for-EVs.jpg

A single Epyon fast-charging station has several outlets, so multiple EVs can be charged simultaneously. The charging station in Leeuwarden and all future stations of Epyon support the international CHAdeMO-standard for quick-charging protocols, the company said.
 

dpeilow

Moderator
May 23, 2008
9,151
888
Winchester, UK
Mennekes is a proposal for the new IEC 62196-2 standard, which is still in progress. It's just about to finish the "second committee draft" stage at the end of the month and is scheduled for full completion by the end of October.

The Dutch Taxi firm above probably needed something quick and off the shelf for their conversion. The danger here is that with the likes of this, Nissan and Mitsubishi coming, the IEC standard might arrive to the party late. It wouldn't be the first time a superior standard has shown up and found everyone else got there and drank all the beer, so to speak (I'll refrain from using any other analogy). Even in the world of EV's they've tried before.
 

ChargeIt!

Member
Jul 24, 2008
619
1
Still don't see the need for these massive, expensive chargers for this amount of power.

About half way between Sacramento and SanFrancisco in a place called Vacaville, affectionately also known as "Voltageville" or (some say) "Voltsville". Has 4 Tesla charges (2 each at two locations, including this one, and one on other side of same Interstate).

Those LEAF and iMiEV owners on a frequent trek on the heavily travelled I-80between SMF & SFO ... they SURE will appreciate it. No other way to make it ... unless you want to "turtle along" ...
 

AndrewBissell

Member
Apr 16, 2009
645
3
TEPCO Level III "quick" charging station/connector

Those LEAF and iMiEV owners on a frequent trek on the heavily travelled I-80between SMF & SFO ... they SURE will appreciate it. No other way to make it ... unless you want to "turtle along" ...

I have been reading these reports, and something is bugging me. To prove the iMiev could drive San Francisco to Sacramento they drove 54 miles to Vacaville, arriving essentially empty. Then they get an 80% fast charge and drive on the remaining 30 or so miles to Sacramento.

BUT ... What if they were going the other way? They'd arrive 50% full at Vacaville, and then have a much longer wait as you can't push charge into the battery above 80% nearly as fast. Potentially it could take an hour or more to do the last 20%. And you couldn't afford not to fill that last 20% as you'd need every kWh to get from Vacaville to San Francisco.

My conclusions are:

1. Don't take your iMiev to Sacramento and expect to be coming back!

2. Fast chargers can't just be at the mid-point of a route - they need to be well past the mid-point in each direction.

3. Battery capacity matters - here Tesla has it 100% right. A fast charging vehicle with 16 kWh/50-60 mile freeway range (like the iMiev) is nowhere close to the utility of a 150-180 mile freeway fast-charging vehicle (e.g. 230 mile version of Model S).

Apart from the first 50-60 mile leg, the iMiev thereafter needs to be recharged every 45 miles (due to the 80% fast charge limit - 40 miles if you don't want to be driving on empty at the end of each leg). This means a 20 minute stop every 3/4 hour.

The 230 mile Model S would need to be recharged every 100-120 miles, or around 1 and a half to two hours. This seems closer to the intervals I find comfortable for longer drives. Assuming 45 minute 80% recharge (as I believe Tesla have suggested) I would find the breaks comfortable length too.
 

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