The solar panels actually have to be framed in the t slot because the glides that attach to the roof rack mounted track have to be fixed mounted to the roof rack track otherwise the solar panel frame would just slide out of the track.
Slide out solar panel.
Have a plug that hooks panel 2 in parallel when deployed and is unplugged in transit.
These slide out solar panels are designed to completely come out beyond your racks to avoid shadowing.
Have panel 1 flat mounted on the roof with a raised stand.
They are also australian made and operate on our 100kg base mount drawer slides so you can literally hose them out when clogged with sand or mud.
Which means the solar panels have to also have t slot track.
Sections 13 17 18 and 22 of the ul 2703 standard of mounting systems clamping retention devices ground lugs for use with the flat plate photovoltaic modules and panels approved 2015.
Here s a mockup i made.