In a solar power system without conduit your outdoor wires could get wet.
Conduit for solar panels.
When installing conduit wire is pulled through the conduit tubing and then typically passed through walls under driveways secured to the exterior and even to the interior of a house basically conduit installation protects the wires running through your walls underground on your roof or down the side of your house.
However for the aspiring solar diy er knowing how to install solar panels can seem daunting.
Cables conduit adapters.
A conduit is intended to protect the wiring leading from the pv array to the inverter and from the inverter to the electrical service panel.