Large solar panel on a small egg - Fiberglass RV


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Old 04-13-2014, 12:08 PM   #1
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Name: Bernard
Trailer: 2007 uhaul ct13
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Large solar panel on a small egg

I did an solar panel/battery/ 3 zones led install on friends cargo trailer for his company this weeekend. We bought 2 90w panel but installed only one on his trailer...
As a gift for helping him, my friend gave me the second 90w panel(it was his plan from the start)

Now i'd like to install it on my uhaul ct13 but the panel is quite large(22" x 47")... I dont want a removable setup that i have to take out, i want it permanent.
If I install it towards the back where the current one is, it will extend out back a little bit.

I could also install it sideways, it would look like a wing, but i'm concern about how the wind would catch it.

Who has installed a large solar panel on their small egg ?
How did you set them up?

Any pictures would be appreciated..
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Old 04-13-2014, 01:09 PM   #2
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I can't get to my photo right now, but you can click onto my avatar and go to albums of mods, and see the set-up we had. I have since sold the trailer, but what I found was that if I pointed the solar panel toward the south, I never had to adjust the angle at anytime of the year to keep our group 27 battery topped off.
Dave & Paula
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Old 04-13-2014, 01:15 PM   #3
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Hi David
I had the same idea(rock guard style mount) but i would place at at the back of the uhaul to serve as a water diverser to pave the rear window open during rainy days.
That said i'm concern about getting it stolen in installed that way...
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Old 04-13-2014, 02:30 PM   #4
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Initially I tried to install ours over the rear window, to use as you have described, but the roundnes or curvature of the rear of the trailer wouldn't allow it, unless the ends really stuck out away from the body.
Dave & Paula
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Old 04-13-2014, 05:45 PM   #5
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Name: John Michael
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My solar panel is 100 watts and I think about 45 inches long. Seems to fit well on my Scamp 13. Probably not so good if you have roof AC. Works really well keeping the group 27 topped off. I think I may add some flashing on the leading edge to smooth the airflow.

Good luck, john

Picture is from Joshua Tree National Park last month.
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Old 04-13-2014, 05:52 PM   #6
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John you are lucky, you vent is all the way at the back..mine is dead center! Thats why i'm looking for a solution
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Old 04-14-2014, 01:32 AM   #7
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Can you put it over the vent. That will keep the rain out but block light.
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Old 04-14-2014, 05:38 AM   #8
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Originally Posted by Night Sailor View Post
Can you put it over the vent. That will keep the rain out but block light.
I'm exploring that possibility at the moment,
The plan would be to remove the vent cover and build a frame to put the solar panel over the "hatch vent". The panel would be a good 6" up, i dont mond loosing the light coming from the vent...
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Old 04-14-2014, 08:40 AM   #9
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Solar power is a bit like growing your own vegetables. It's enormously satisfying. It's like getting something for nothing. Very little work is involved, and you reap the reward later.
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Old 04-14-2014, 11:10 AM   #10
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John you are lucky, you vent is all the way at the back..mine is dead center! Thats why i'm looking for a solution
You could consider swapping your large panel for two smaller ones, though I expect there would be an increased cost and twice the mounting hassle.
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Old 04-14-2014, 02:12 PM   #11
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I know you stated a roof mount was your desire but what about slightly portable with a rear bumper mount? You would not get much charge driving down the road but probably as much as you would from a rock guard install.

Could possibly make it so it swings up like a rock guard, or unlocks/detaches to put out in a better location/angle.

Rear bumper seems like it would offer some solid mounting options, options with enough strength to secure your panel from walking off. Not much wind drag either.
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Old 04-14-2014, 02:35 PM   #12
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Interresting idea, but the bumper is already full with spare tire, toolbox and bike rack...might aswell do the rock guard setup.

I'm thiking more and more that the wing style if done right,should work...i also found good alu pieces if i decide to go top of the vent...illl study the problem again tonite.
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Old 04-14-2014, 03:06 PM   #13
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Have you considered the gravel shield? A lot of people have had success with that.

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Old 04-14-2014, 03:29 PM   #14
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My main concern on the gravel guard setups is to have the panel stolen or broken (vandalism) since its easily accessible.

Thanks all for the good suggestions, keep them coming!
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