[SoftTalker]

How many days can the truck power the house, and what's the longest stretch of overcast days you get (in Hawaii, I am gussing you get at least some sun almost every day).

[GratiaTerra]

Truck at 100% = 131 kwh, Minus 10% loss in transfer = 120 kwh House using 12 kwh/d = 10 days, up to 24kwh/d = 5 days

Local conditions are typically partly cloudy/rain but still system producing more than can be used.