I'm confused why the kickstarter team says they will have 60amp components and can provide 15kw. Do they mean 72 amp but down to 60amp continuous? Or are they being disingenuous.
Depending on whether they are 72/60 amp or 60/48 here is my analysis for Model S users:
1. kickstarter. if its only 60amp parts, then can drive it at 80%*60=48 = 11 kwh, basically same as umc. Fully power single charger around $600. A little cheaper if you put it together yourself or don't get fancy display.
2. tesla umc 10kw (11kw in europes, so is the euro spec one 48x240?), fully powers 1 charger at 240v 50amp (40amps cont) at $650 - and you already have one of these
3. kickstarter if its 15kwh because its 72amps but 60amp continuous, not much point for single charger people, but twin charger people around $600
4. tesla hpwc, 20kwhy, basically for twin charger people, $1200
If the kickstarter people do come up with a 72amp/60amp continuous charger then it has a place as a slightly poor mans home charger system. If you have a single charger, it's no better than a UMC. The only reason to get one would be maybe so you could leave your umc in the car, and you could have this at your house so provides minor convenience. A second (permanently at home) UMC is more reliable and rated by Tesla, but it wouldn't work on another car. If you have twin chargers, and they really are 72amp parts, then it's kind of half the cost and 3/4 of the charging capability of the hpwc.
Since I have a single charger, I don't see much point to this. If I did get one, I'd also get another tesla-j1772 adapter so that I could plug it into my tesla without having to get out my kit from the car. Or if I had a second electric car that was non-tesla (leaf, imiev, mits phev, volt, elantra elr). I guess a spark can use j1772?