[dpeilow]

I know that J1772-2010 says cars should track the max pilot signal advertised current in real time. This has been confirmed on the Leaf and i-MiEV but I don't think anyone has tried it on a Volt/Ampera.

I know there is a driver in Holland that has set up a system to have their car track their solar PV output. I'm also aware of some other experimentation that I can tell you about on Saturday.

 

[dpeilow]

It won't work Paul. You can't 'restrict' current to a device that is expecting or requires a higher amount. You can switch things on and off incrementally like heaters, but ultimately that is why the pilot signal duty cycle exists to tell the car what to pull rather than restricting what is pushed to it.

So you need to get real time power generated from the inverter and use that to vary the EVSE pilot signal. if you want to charge the car directly.

Alternatively you can dump the solar PV straight into batteries and then charge from them later (maybe overnight). I investigated options and it would cost a few thousand to set up though.

 

[dpeilow]

You can do it without risk of backfeed using a Xantrex inverter/charger and some lead acids or there is a special (but expensive) self-contained unit from Juwi.

http://www.juwi-homepower.de/

 

[dpeilow]

You could run a totally off grid system powered by PV and switch(automatically via relay if required) the car between grid & off-grid supplies.
http://www.wirefreedirect.com/off_grid_homes.asp

Yes the Schneider Xantrex system does this. Can even export once the battery voltage reaches a set level.