Do it yourselfers are hamstrung?

[tada]

The electrician I talked to sounds skeptical about my plan for batteryless offgrid. So my DIY plan is to go this class next year-

http://www.trainingforsolar.com/Advanced...ation.html

Hoping Gexpro can help me pick out the wires. When I look at my Kyocera panels I cant even tell which is the +/- terminal??

Looks like there´s the professional way and my way. When I scrutinize people´s roof u don´t see wires hanging out. If i drill holes in my roof going be on the overhang not the interior. So hopefully they kick me out the class.