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Thinking about buying solar panels


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Old 07-07-2013, 01:01 AM   #41
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I have had the xantrex inverter for like 3 years just sitting in the garage thought I would just use what I had .I figured it would be big enough
Isn't the real problem not having enough battery storage as long as you can keep the batteries charge no matter how many panels you have?
I can see it running the battery's down really fast like using a microwave.
But isn't it true as long as you can get the batteries charged back up you should be okay?
If not you're suggesting a really small 100 hundred watt inverter like Home Depot or Lowes or Harbor Freight sells.
Ideally your system should be balanced. Meaning you gauge your needs with you battery storage and your production. A full house system needs to be able to charge the batteries for night time and be able to handle the load during the day at the same time. A buddy of mine who is off-grid can run his whole shop all day long 7 days a week during the summer and still have 100% on the batteries come evening. That way if we have a cloudy day he can still get a days work in. The batteries are more a buffer when the sun is shining and should not be drawn off of when the sun is shining. they only are used when there are shading issues (clouds or what have you). Shading causes serious degradation at an exponential rate. Even partial shading caused by dirty panels can seriously degrade your production.

So you need to gauge your needs first and foremost for an off-grid system- which includes your camper. What do you plan on powering? Are you going to be using AC? A microwave? Both at the same time? You need to think of these things.
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Old 07-09-2013, 02:49 PM   #42
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Panel came in yesterday but no controller
Just figures
Now that I have the panel want to buy more . they went up $50 more each mad.
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Old 07-09-2013, 04:36 PM   #43
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Panel came in yesterday but no controller
Just figures
Now that I have the panel want to buy more . they went up $50 more each mad.
Bummer.

I wish I had the money to buy that system I saw on Craigslist. That was a steal!!! (even if the panes were degraded).
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Old 07-09-2013, 04:58 PM   #44
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Yeah same thing ran through my mind. I was wondering how old they were.
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Old 07-09-2013, 06:51 PM   #45
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Take a look at this- it would be perfect for your trailer! Custom build it to fit!

http://sfbay.craigslist.org/sby/ele/3924158674.html
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Old 07-09-2013, 08:06 PM   #46
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Yeah that is nice I was a little concerned about making panels for my trailer since it does get a little rough roads.
As you know California does not spend money on the roads.
Panel I bought was made for RV's supposedly a little bit more durable for rough roads
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Old 07-09-2013, 08:18 PM   #47
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Yeah that is nice I was a little concerned about making panels for my trailer since it does get a little rough roads.
As you know California does not spend money on the roads.
Panel I bought was made for RV's supposedly a little bit more durable for rough roads
The panels themselves are incredibly durable. I would be more concerned with their mounting and the wiring. All too often that will be the problem rather than the panel. The panels I have on my house are rated to withstand 1-inch hail sustained for an hour and I have heard where that is under-rating them. Here is a good video with a billiard-ball size ice ball hitting a panel at 100 MPH.

https://www.youtube.com/watch?v=aI6K3xlgYoY
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Old 07-09-2013, 09:17 PM   #48
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No that last post that you did about the RV perfect solar system
We're panels that you had to make yourself. Make your own frame use your own glass etc.
I would say that is not very good for a RV. Just my opinion though

Store bought panels do come with non reflective glass ,snow loads And guarantee
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Old 07-10-2013, 12:07 AM   #49
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Some reason I can't watch That youtube video.
Hope I didn't offend you in anyway !!
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Old 07-10-2013, 02:41 AM   #50
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No offense, not sure how I could be.

Yes, you are right, a home-made setup would not be as durable. But it is cheap!
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