Some people are terrified by electricity. I am guessing few in this community fall into that category. What makes you comfortable working with solar systems? For me, my father was an electrical engineer and I learned a lot from watching and helping him run new power and phone outlets. There wasn’t anything he was scared of pulling apart to try and fix. I think the first outlet drops I installed in a wall were BNC coax drops in an apartment I was renting. I did take some computer architecture classes at university that formally introduced me to electricity and circuits, later I ended up taking some electrical courses, reading home improvement books, and lots of online videos. I guess I could also look back at the stereo installs I was involved in as a youth for myself and friends.