sdwarwick:LeftieBiker wrote: ↑Thu Aug 08, 2019 2:57 pmThis looks like a better overall solution that trying for actual commercial DCFC speeds:
For $4k you get a unit that will charge your car a bit faster, and provide car to home power sharing.
I would consider a bidirectional unit similar to the "Wallbox DC unit" if it also includes a MPPT based solar input. Of course it also must be grid compatible with split phase 240 VAC. and meet safety codes - with a transfer switch. At 7+ kw, it would double my current charge limit and could allow a meaningful emergency panel power level to keep refrigerators running and possibly a small A/C unit (it's 99 degrees right now). Would not worry about degradation - power level is so low and with a good app, would keep the SOC in safe ranges. Since I can buy a used Leaf at a cost well below most hi tech lithium off grid battery packs on a kWh basis, why not use it as the battery storage.
If you can produce this unit (essentially a small hybrid grid tied inverter with energy storage based on CHAdeMO compatibility), I believe you will have a product to sell.
Just my opinion.