How Many Watt Solar Panel Do I Need For My Rv

I don t see putting a 300 watt panel on the roof of an rv as very realistic.

How many watt solar panel do i need for my rv.

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. We can also think about it in watt hours. This equals thirty amp hours a day meaning you would need two one hundred watt panels to fully recharge your rv. 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.

Simply put your maximum solar output in watts should equal your battery capacity in amp hours. This is assuming you are considering using 12 volt rv grade panels. As we talked about above a 12v 100ah battery is 1200wh 12 100. If our 100w solar panel generates 70w every hour it will take a little over 17 hours to generate 1200wh 1200wh 70w.

The more ah you have the more solar panels you ll need if you have a single 12 volt battery at about 100 ah you should have 300 watts of. You ll need to add up the total amp hours ah your batteries are capable of holding. And if you think there s the potential for damage it would be easier and cheaper to replace a single 100w panel than to toss an entire 300w one. This is just a rough measure to get you in the ball park.

How many watts of solar panels do i need to recharge my batteries. The number of solar panels needed for rv boondocking depends on how many batteries you have to keep charged. 100 amp hours of useable power from a battery contains roughly 1280 watts of power 100ah x 12 8 volts 1280 watts of power the average hours of sunlight per day in the continental us is 6 hours. Most boondockers have between 200 to 400 amp hour battery banks.

This is also assuming of course you have a lot of battery power too. If you have a rough idea of your power needs you need to check a solar panel s spec sheet and look for the watt rating the peak power amps and peak power volts. What the sun will provide. We suggest a battery bank of 800 amp hours.

A 400 amp hour battery bank will need roughly 400 watts of solar. You will need at least 1 800 watts of solar panels to run your rv air conditioner. A 100 watt solar panel produces approximately 6 amps per hour in direct summer sun without clouds.