Components of a Solar PV System

This is a list of the hardware and materials that will be used In your system.  You can get right into it and try to learn about each item, but for me the most important items are the solar panels, Inverter, racking/mounting/flashing and the monitoring.  The balance of the items are details which could be important to know a bit about but not necessarily all the ins and outs. The reason for this is that you may be able to spot short cuts, and other poor installation behaviors by your installer.

Solar panels

Inverter

Racking and Mounting

Flashing

Grounding Wires, clips, lugs

Combiner, junction box

DC and AC Disconnects

Breakers and Switches

Wire size and type

Module connectors

Lightning arrestor

Monitor

Signage (warnings/ID)

Meter