The only warning I'd offer is, when you start stringing together panels, you get into a deadly voltage/current scenario pretty quick. It's not like there's a switch to turn a panel off. And DC is far more dangerous than AC. Just the four panels I'm currently running puts out 96 volts open circuit, and can develop 10 amps @ 72vdc. If I hooked all 12 of my panels in parallel, I have a 60 amp welder. (yes, you can do that with solar panels, as shorting them does not harm them) Battery banks are even more dangerous, especially when you go 24v and bigger. Higher the voltage, the higher the risk of a DC electrocution. A 48vdc battery bank should be treated like 480v three phase.

I'm not trying to scare you off, but I also want to make sure you understand it isn't like playing with 110v house current.