A composter costs very little and can product a decent amount of methane. Animals like goats and pigs can produce a lot of dung that will turbocharge that quit

A composter costs very little and can product a decent amount of methane. Animals like goats and pigs can produce a lot of dung that will turbocharge that quite a bit. A little searching yields stuff like: https://www.motherearthnews.com/sustainable-living/renewable-energy/biogas-generator-zm0z14aszrob/ https://www.motherearthnews.com/sustainable-living/renewable... The low tech route is far cheaper and easier at small scale if you want to make combustible fuel.