I've been off- grid for 15 years with mainly solar power in 3 different stages :
First set up was 160W of solar for lights, tv etc.Gas fridge and 5kVA honda Genny for washing m/c, vaccuum etc.This set up was Ok for a minimalist approach but gas fridges are expensive to run and the Honda is noisy and thirsty.
Second arrangement was 480w of panels, 24v DC fridge and lighting, Larger loads AC. Quite easy to live with,occasional use of honda, mainly in overcast weather.The house was wired for both AC and DC whilst I was building it.I wouldn't bother with the DC part again, mainly due to the unreliability of the 24v fluoro's which were available.(I've since overcome this problem with the simplest of modifications.Why couldn't the manufacturers do it?)
The current

incarnation has 1980w of panels,1900 AH of batteries, AC fridge(still using the DC one too) and the 12/2 when we want air conditioning. Most of the year, we rely totally on solar (sorry guys!) with the lister as a back up. (incidentally, the side valve honda is still going strong!) The AC fridge is much easier to live with than gas or DC.All of my (3)inverters have been trouble free, only being changed when I wanted a larger unit. The latest sine wave unit is the best so far .No problems with induction motors, efficiency is not a major issue and the standby current draw is hardly measurable.
Battery replacement is the big issue. We have two battery banks, a 500 AH set powering DC only and a 1300 AH set feeding the inverter only. This is only because of the gradual development process. Total replacement cost is in the order of AU$ 10 000.This is in effect our electricity bill. Battery life is estimated at 10 - 15 years so the bill comes to $700-1000 per year.There still ain't any way of getting a free lunch.
Despite the cost, I would still use a big battery bank and inverter if I were to build a new system based around a Lister alone.Combining it with a small hydro (yep even 200w),wind or solar has to be an improvement though.
Cheers,
Brian