hedge wrote:
Why would a flexible panel be a poor choice for portable?
.
2 reasons:
1) They are (usually) less efficient per sq ft, i.e. 100W flexible is larger than 100W rigid.
2) More difficult to make a frame to hold it in tilted position. To rigid you just bolt 2 hind legs of alum angle or PVC pipes.
I would also think that they are less durable, there is no glass, they use some clear film on top.
But they can be a good choice for roof mount on expensive MH where you don't want to drill any holes. I'm talking about flexible that you can roll out, not those that come with rudimentary metal trim around the perimeter and can "flex" but not roll out. You probably bought the latter type - with metal trim.