PV for a 30ft 5th wheel (photovoltaic solar panels on RV)

[oil pan 4]

Buy the time you get any 100 watt panel shipped to you, I think you will be looking at spending at least $130 to $140.

Originally Posted by doug30293

To help offset the system cost I was thinking of installing a preheat tank for DHW in my house and powering it with the solar array when the trailer isn't in use. DHW is a big expense for us, even in summer.

This is almost exactly what I do with my suburbans solar roof top.
See:
Vehicle solar panels to grid - Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com