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The Tesla HPC for the Model S can be set to work from a 40A to a 100A breaker, when you add it to your Model S configuration, it costs $1200
Here is the cut sheet on it, which is copied from the "charging page" on the Model S. keep in mind, to get any benefit from circuit ampacity greater than a 50A breaker, you would need the 2nd onboard charger (adds $1500 more). I think the Model S HPC will end up costing less than buying a 2nd Mobile Connector from them.
http://www.teslamotors.com/sites/default/files/downloads/highpowerwallconnector_summarysheet.pdf
Thanks for the information, this makes it clear that the old Clipper Creek 70A HPC is a better bet...I thought this EVSE would be capable of supplying at least 70amp but it looks like it will not work over 50amp with J1772 (if at all).
It can supply 80A, if you connect it to a 100A breaker (%20 derated because of continuous load), that's 10Amps more than the old Clipper Creek CS-100
It's designed with the Model S connector installed on it, not sure why you would want to change it out to a J-1772, which is limited to 75A max, and was never really designed for that high of a current (contacts where rated at 32Amps on J-1772 when it was designed). The Model S connector was designed for higher current...
Yes, but I'm not sure Tesla is donating anything when a Model S is referred. There is a large amount of J-1772 already deployed in California, although its mostly going to be 30A EVSEs. I think Tesla is going to focus on deploying the Supercharger network for Model S owners, so they are not as concerned with J-1772. The Model S is coming with the adapter, so it can use pretty much any charging spot, from a 120V outlet, to a 30A public J-1772 EVSE, to a 14-50 for the Mobile Connector, to a 70A public J-1772 EVSE, to the HPCW2 for the Model S (80A max if you feed it with the 100A breaker and have the dual chargers on your model S), and finally the Superchargers at 90KW.
You can see why they are less concerned with public J-1772 70A these days...
Well, I don't drive a "real EV", I have a Plug in Prius, I did reserve a Model S on July 2nd though.
You can build a 75A J-1772 EVSE for about $700, using the OpenEVSE project.
Example 75A J-1772 EVSE: http://code.google.com/p/open-evse/wiki/EVSE_Example75A
The most expensive part is still the 75A ITT J-1772 cable assembly w/20' of cable, $328
ITT Interconnect Solutions EVC-C-75A-600S-20, - Avnet Express
The 2nd most expensive part is the 75A contactor, but I found a source of them for $120
SuperBreakers.netSquare D
next is the OpenEVSE PCB & advanced power supply combo, about $150 w/shipping
http://code.google.com/p/open-evse/wiki/Ordering
now you need a few misc parts (current transformer $10, relay $2, wiring, nuts & bolt, gland nuts for wiring), and a NEMA enclosure for it all, maybe about $100 total
of course there is labor to put it together as well..
Mitch
The thing I hate about a lot of public J1772 infrastructure is that it is 30A, which is painful charging a Roadster unless you're staying overnight.
The last time I used 30A staying overnight I slept in so the charger had 10 hours... and yet when I went down to the car it had just finished a Standard mode charge!
This will be even worse with the Model S, with the bigger pack.
Yes. I think they almost wasted a lot of effort in the US by spending money on a lot of 30A chargers people don't use in movie theater parking lots, grocery store lots...etc. A few higher amp chargers in better locations would have been a bigger help.