To me it seems that a charcoal gasifier would be appropriate. I was surprised at how easy it was to make an engine run the first time I tried to do it. I studied Some school in Thailand. I think that one 55 gallon (200 liter) barrel of charcoal and one simple updraft gasifier should not be unreasonable to have at each of 10-20 houses. Charcoal does not rot or degrade with time, so in some ways this is easier than maintaining a supply of gasoline (petrol). Perhaps the 10-20 houses can share one charcoal maker.
Rindert
My tlud (Top Lit Up Draft) charcoal maker.
