Solar panels mounted in rear quarter windows

Submitted: Monday, Mar 24, 2014 at 08:15
ThreadID: 106866 Views:2921 Replies:4 FollowUps:2
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A friend gave me the idea of mounting 2 x semi flexible 40watt solar panels in the quarter window of my GU. The size works and mounting would be easy enough, however i am wondering how much performance i would lose behind the window tint?

Any ideas.
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Reply By: The Landy - Monday, Mar 24, 2014 at 08:21

Monday, Mar 24, 2014 at 08:21
Not sure about the window tint, although I suspect it will affect performance, of more concern will be the lack of performance as presumably they won’t be pointed towards the sun.
AnswerID: 528971

Reply By: Crusier 91 - Monday, Mar 24, 2014 at 08:34

Monday, Mar 24, 2014 at 08:34
For solar panels to work efficiently need to be angled correctly, facing the sun and with out any obstructions.

Your performance lose with your idea would be anything from 60%-90% lose. Pointless exercise really.

Nice idea, just not practical.
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Follow Up By: Ross M - Monday, Mar 24, 2014 at 09:55

Monday, Mar 24, 2014 at 09:55
I agree with that.
Having the solar panel under a light minimizing blanket and also not pointing it to the sun is fairly pointless.
They are not called SOLAR panels just for the fun of it.
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Reply By: Robin Miller - Monday, Mar 24, 2014 at 11:10

Monday, Mar 24, 2014 at 11:10
Not as much loss as you might think Sweetnam.

There are differences in solar cell types but your normal ones don't really make much use of the UV and IR part of the light spectrum so the fact that film cuts out 99% of UV won't affect the panels.

As per other responders the lack of pointing cells to where sun is , is the major effect.

Of course it depends on what your doing overall, if it was convenient to mount them where they would get some light and you take them out and set them up when needed then why not?


I have a 20 watt semi flexible mounted flat on my GU's roof.
Its virtually invisible and gets a lot of light , really works for me to keep my car battery topped up at no real cost.
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Follow Up By: sweetnam - Monday, Mar 24, 2014 at 12:47

Monday, Mar 24, 2014 at 12:47
Thanks Robin,

I have used them a fair bit, but have just had to remove a 200w from the roof to make way for a Maggolina Roof Tent

Am looking at options and trying to avoid mounting a couple on top of the maggolina if possible.

In the past i have found a panel permanently mounted works well, even if it is not always focused directly in the sun.

I believe i can mount 2 x 40w in the quarters but may look at making them removable for days with no driving
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Reply By: Ross M - Monday, Mar 24, 2014 at 18:46

Monday, Mar 24, 2014 at 18:46
sweetnam
If there is room can you make the panel slide from under the RTT frame and then, when you stop, it can be slid out and catch the rays. Slide back when traveling with a locking mechanism of course.
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