pianotuna wrote:
Hi mena,
I would get panels, then go to the local surplus metal shop--and get some angle aluminum.
I didn't like how flexible my Unisolar panels were so I used the angle aluminum on the long side. It seems to me that with a glass surface, on top of the RV, I'd want even more stiffness in the mounting.
I guess you are going pwm for the controller. I'd encourage you to consider having 450 watts total. That will allow equalization on the panels.
Have you chosen a controller yet?
I'd actually disagree, you want more flexability in mounting so as not to snap the tempered glass. Most panels however are designed very well and it takes a lot to snap one. Whatever you decide for mounting is likely fine.