A quick google suggests micro hydro can be done for as little as $1k. And once yiu have your own power plant, you won't have monthly electric bills. Here is some info: http://www.alternative-energy-news.info/micro-hydro-power-pr...

Poverty is often very expensive and often involves the cheapest upfront cost but frequently leads to high lifetime costs. So I think your argument is ridiculous. Energy independence is often more about mindset and lifestyle choices than budget. I hsbe never been in a position to pursue it, but I never viewed that as being about dollar cost per se.