That's AC. The panels are DC. That makes a big difference. That said, the point of "do it yourself" is that you'd nake it less dangerous for ordinarily folk. S

That's AC. The panels are DC. That makes a big difference. That said, the point of "do it yourself" is that you'd nake it less dangerous for ordinarily folk. So the risk of shocks would come down. What would concern me more is long-term fire risk. If not installed correctly, with the right spec parts etc, proper grounding etc, there's a significant risk of fire. Not immediately perhaps, but a couple years down the road. Again DIY kits would need to be designed with this in mind.