I installed solar to avoid running my generator. I would use a inverter to run my direct TV system and 19" TV all that I wanted to, and could use 130 AH of battery power nightly.
My 400 watt solar would make up that much power in 8 hours of sun.
It also shades my roof.
And your RV will consume 35 AH of power just to run the CO meter, propane leak detector and refrigerator for 1 day, about what 1 of the 120 watt solar panels will make in 1 day.
So lights are only a fraction of the power consumed each day by the RV. In my case, the TV set used a lot of power. But for some, the satellite and wi-fi system will consume more power. Some use a internet connection for business while living in the RV full time. Some just enjoy playing on the computer, and use a small inverter and laptop.
My favorite place for solar panels is this one.
SunElec.comHave fun camping!
Fred.
