THere are places where you can buy an individual windmill.

A Sterling-engine generator is a possibility. They depend on a difference in temperature, so it depends how much you could heat up a fluid using solar-thermal. I've powered all my hot water and forced-air heating by thermal-solar and found it reduced my energy bill by about thirty percent. (That was just sun-heated water pumped into the hot water tank and used to heat the duct-air). But it depends on how much sun.

So I would say your first order of business is to learn what an average year of sun and of wind means in your locale.


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