Comment by toomuchtodo

> It is the install on the roof itself which most people cannot do (because they lack roofing knowledge.) Every other thing is absolutely DIY by pretty much anyone with hands and eyes.

Literally the most important part is what most people cannot do. If you have the space, sure, ground mount. Most people do not have the space, nor are they going to be confident in putting penetrations in their roof deck to mount racking to hold the panels.