Hi Davydd,
I think Alvars recharge numbers are pretty high, particularly the 300 amps per hour from the extra alternator. A V-10 would be a better choice than the Sprinter diesel engine for idle based recharging. I can, in a pinch, use the v-10 with the oem alternator (130 amps) to recharge at up to 70 amps (perhaps higher--but my meter doesn't read above that number). Someday I'll have to try it while idling. So far I have only used it while driving at highway speeds.
I love solar recharging but again their numbers are pretty much "summer time only". The flexible panels seem to have "come of age" now with excellent output per square foot.
Espar heating is a magnificent idea. Do they plan to use it for space heating too?
The outback inverter is one of the ones I was considering--but I wanted hybrid technology. I'm often where I only have 15 amps to play with, so being able to draw from shore power and the battery bank at the same time is useful to me.
Have they considered going to 24 volts DC?
We live in exciting times for new technology and RV's. In 1990 a 5000 watt grid tied inverter was about $50,000.00.
It sure is going to be one nice Class B when they finish it off.
