270w solar world panels
I have a buddy that can get these panels for very cheap thru his home solar co. I wanted to know if these type panels are worth installing on my fifth wheel. I checked the internet and the voltage ...
Forum Discussion
This is a normal voltage for a 24V nominal panel. All panels from ~200W have voltage in the 30s.
Those "advertised for RV installs" are nominal 12V panels. They typically install 1 or 2 panels, maximum 280W total. If you want a lot more wattage, you will need 24V panels because using several small 12V panels will complicate the install too much. 24V panels in turn would require an MPPT controller, a more expensive type than PWM controllers that are used with a couple of 12V panels.
This is why RV dealers don't like doing anything over 280W - they follow the path of the least resistance. You get what you pay for - a small system may give you "something", a big system will give you enough to live on.
Those "advertised for RV installs" are nominal 12V panels. They typically install 1 or 2 panels, maximum 280W total. If you want a lot more wattage, you will need 24V panels because using several small 12V panels will complicate the install too much. 24V panels in turn would require an MPPT controller, a more expensive type than PWM controllers that are used with a couple of 12V panels.
This is why RV dealers don't like doing anything over 280W - they follow the path of the least resistance. You get what you pay for - a small system may give you "something", a big system will give you enough to live on.
