Free energy from the Sun, why not ,
Buyer beware,
Make sure you do your research, to make sure you are buying what you need.
I have Grid tied system, so when sun is shinging, I get power and feed back to grid,
I did not at the time get " Battery Backup ", so when grid is down, so am I, daytime included, as there is a safety feature so we dont fry the linesmen, fixing the grid
Big mistake, now if I want " Battery Backup " for when grid is down, I need to fork out Thousands more.
Batteries, inverter and all cables installation etc.
Always do your home work first.
Best to get the " Off Grid " system right away if you ask me.