I don't have solar myself but I worked for a solar tech company for a couple of years I think the biggest gotcha we dealt with was that you can't (or shouldn't

I don't have solar myself but I worked for a solar tech company for a couple of years I think the biggest gotcha we dealt with was that you can't (or shouldn't) just wire solar into your house and call it a day. You have to let your electrical company know, there are permits and inspections that need to be done before you wire your solar into the public grid. There may also be some relevant bylaws you should know about, or if you live in an HOA you should check their policy first so you don't start a fight. It's like a lot of things. Conceptually easy, but bureaucracy makes it complicated