I just recently finished a self install of residential solar. Got a few quotes for contractor install but wasn’t pleased with the cost nor high pressure sales pitch from some of them.
Ended up finding a company that would quote me the design, engineering, and all materials (including some of the necessary tools) all for one cost. Got permits and interconnect agreement with utility and was able to install by myself in 36 hours. That’s 36 hours of labor spread over about 10 days as I had to work it in between things. Been producing electricity for about a week. Very satisfied with it.
Not a difficult project, but I must stress, you need to be confident in being on a roof and basic construction techniques. Also please be sure you are knowledgeable about electricity if you decide to try it. In reality if done correctly, there is very little exposure to any live electricity.
I got a larger system - maximized my roof space - and spent about half. Let me know if anyone has questions. I’ll do my best to answer.