pv panels upside down?

[saggers]

If running 2 rows of panels it is wise to have the connectors at the bottom on the bottom row in case they need to be unplugged in the future?

 

[Gavin A]

up to you, there's no performance advantage either way.

 

[SibertSolar]

Not advisable really, they tend to leak and you'll suffer with volt-drop

 

[whinmoor]

If in doubt, best to have junction box at the top if possible. One manufacturer says:

"The correct order to orient the module is vertical with the junction box on the higher side of it. The reason for this is that the breather port in the junction box, must be mounted facing downwards and not be exposed to any rain."