The number of solar panels you need on your rv roof will also depend on how heavily you use the electricity you re generating.
What size solar panel do i need for my rv.
The main purpose of your solar panels will be to charge your rv house batteries.
For now lets assume you have enough battery for ample storage and operation of the basics loads you want to operate.
That panel is rated at 100 watts at peak efficiency meaning on a 78 degree cloudless day at solar noon on the equator during the equinox.
I don t know too many people who rv under those conditions.
Solar panels are sold in varying sizes but a 100 watt panel is a commonly found size particularly for rvs.
Tips for estimating rv solar panel needs although actual output may vary based on the factors mentioned above you can get yourself to a ballpark figure using a couple of tips.
For our specific power demands we need one 100 watt portable solar panel to recharge our rv batteries during our boondocking camping trips under normal conditions.
Using a charge controller rated in the 30 amp range will allow a single panel system to grow to three 190 watt panels.
Budget and roof space.
Our final personal determination.
Yes your solar system can grow on your rv as money and budget allow.
The general rule of thumb is that a 100 watt solar panel can produce about 30 amp hours per day so you can use this guideline to determine about how many panels you need.