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10-04-2012, 04:19 PM
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#1
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Senior Member
Join Date: Aug 2012
Location: Logan, IA
Posts: 110
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Using large solar panels 200W +
I'm finding numerous larger solar panels for costs of $1.00 to $1.25 per watt. This of course means two panels is all that I'd need. I've read many times that just a small amount of shade on a panel "kills" the output. Has anyone installed one of the 200+ watt panels on an RV, and how satisfied were you with the results.
Thanks,
Dom Ferris
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1988 Newell Coach
Dom & Fay Ferris
Logan,IA
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10-05-2012, 02:07 AM
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#2
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Senior Member
Join Date: Dec 2005
Location: Southern California
Posts: 1,018
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Be careful of cheap panels. Research the manufacturer and the warranty, there are some that have none. High quality will last 30-40 years and have a 10 year warranty.
Shade on cheaper panels is more critical, a quality panel will still produce power even when partially shaded but at a reduced out put.
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1976 Newell Classic (Sold)
Home Base: Riverside, CA
If anyone needs my contact info private message me and I will send it to you.
-Joseph-
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10-05-2012, 04:20 PM
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#3
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Senior Member
Join Date: Sep 2006
Location: Sugarland, TX or Salida,CO
Posts: 1,867
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Every panel is different so you will need to post the make and model. Basically it will depend on how many bypass diodes and voltage.
And what are the shade issues? Trees, air conditioner, tv/satellite antenna etc?
Generally shade will about kill the output.
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Sean
If Ain't a Newell, It Ain't Wurt Oonin!
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10-05-2012, 04:33 PM
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#4
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Member
Join Date: Oct 2007
Location: Iowa
Posts: 54
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moderators please delete this post as i made a mistake and reposted
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Mike
“A government big enough to give you everything you want is a government big enough to take from you everything you have.” – President Gerald Ford
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10-05-2012, 04:43 PM
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#5
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Member
Join Date: Oct 2007
Location: Iowa
Posts: 54
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Quote:
Originally Posted by NewellCrazy
Every panel is different so you will need to post the make and model. Basically it will depend on how many bypass diodes and voltage.
And what are the shade issues? Trees, air conditioner, tv/satellite antenna etc?
Generally shade will about kill the output.
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I guessing this is where having a tilt mechanism comes in handy? What degree of tilt being on the roof would be best?
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Mike
“A government big enough to give you everything you want is a government big enough to take from you everything you have.” – President Gerald Ford
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10-05-2012, 07:39 PM
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#6
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Senior Member
Join Date: Jan 2003
Location: Heartland
Posts: 3,563
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Mike your exactly right, you need about a 15 degree tilt as the norm. The other available route is mounting to a solar tracking system.
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Ken
Previous Owner of 3 Newell's
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-Bob Marley
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