Wire Management Under Roof Mounted Panels, and Proper Code Compliance

[k-man21]

I have an 11.8 kW system that is finally getting turned on tomorrow, but I have some concerns with the wiring on the roof under the panels.

Photos, including the roof section of conduit.

Essentially it seems like the wires for the power optimizers were loosely zip tied in loops, with them hanging down onto the roof in some spots. I have emailed the installer requesting they come out to tighten these up.

There are 33 350w Seraphim S3 panels, connected to SolarEdge power optimizers, if that makes a difference.

I posted this to reddit and was told that the conduit coming down the house from the roof is not up to code. The conduit is PVC, specifically Cantex Schedule 40, non-metallic PVC. On reddit I was told this does not comply with the 2020 revision of NEC 690.31(D). That conduit should be metal, since it carries all of the power from the panels down, so it should be protected better. I drove around to look at 3 other nearby solar installs, and all had metal conduit in that section.

Here is the rest of the install if anyone is curious, including the roof to inverter section of conduit that might not be to code.

Is there anything else I should look closer at? Are the commenters correct that this is not up to code? I am losing confidence in the install now that I have two issues that should have been complied with from the start.

The odd part is this has been inspected by the city twice, and the fire marshall once, passing inspection every time.

[Mike 134]

WOW!!! they make stainless steel wire clips that slip onto the solar panel frame to hold the wires clear of the roof and being stainless steel will not get brittle and break like tie wraps do in 15 years. You have very lax inspectors. Per NEC 690 the conduit has to be metal inside the house which that PVC coated flexible conduit is, but a craftsman would have used thin wall conduit (EMT)in the house and taken some pride in his work. just my 2 cents.