This is precisely the setup I'm planning for my place up north. A few kW of solar, which ought to still kick out useful power even in winter - down south here at 56°N days are pretty short, and I'm about a degree or two further north up there - a couple of kW of wind turbine, and an LPG-powered genny just in case. This latter will be mounted on a trailer with a couple of large automotive tanks so I can just take it to the petrol station and fill it with the same pump as the dual-fuel car, because it's roughly half the price to buy autogas than bottled propane.