I looked at a bunch of electricity generation options about 5 years ago and got EXTREMELY frustrated by the whole exercise. The problem was not generating the power. That is easy to do and reasonably inexpensive. The problem was what to do with it after it is generated. Solar and many wind generators, generate DC current. With DC power, even over a short distance you lose so much in the translation. So a solar panel that generates 90 watts, by the time it gets to your battery packs, you might be lucky if you are getting 50 watts of battery charge.
The other thing I found was the charge controllers and batteries and associated other components were insanely expensive. Around 75% of the cost of the whole system was just converting the power back and forth between AC and DC and storing it. Like I say, the last time I checked into it was 4 or 5 years ago, so prices may have come down since. But the math I did at the time, to build a solar system only big enough to run a freezer (what I most desire electricity for), would have been north of $10,000. Also, that was using pre-built components. I am sure you could save some money by building your own.