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Old 02-16-2012, 03:01 PM   #1
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triple junction amorphous silicon panels any good?

A vendor was selling triple junction amorphous silicon panels at the FMCA rally. 68 watts per panel which was about 9 feet by 15". Seems like alot of space for little wattage to me but they are resistant to impact. You can walk on them and they don't get ruined in hail.
He said they are better than the crystalline units in low light.
Any thoughts or experiences with them would be appreciated.
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Old 02-16-2012, 04:18 PM   #2
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I've seen those recently and with the long skinny size seems like they're designed more for metal roofs on residential homes. I know I wouldn't be able to put a continuos 9 ft panel on my MH roof.
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Old 02-18-2012, 02:37 AM   #3
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I have 4 on my small class C. I bought a kit from Amazon.com for $1200. Kit included cables and a Morningside charge controller, but not the fuses, combiner box and the cable that runs to from combiner to the batteries. I also added a battery monitor. They stick VERY well to my fiberglass roof. We only got one shot at placement.

I have not boondocked much yet, but so far they seem to function well. I was able to get thru below freezing NM nights last October running the forced air furnace and used less than 30% of my 2 12 volt batteries. I was driving at least 200 miles during the day so I can't really speak to the charging yet.

I ran into Handy Bob and he seemed to think it was a system that would work well for me after making some changes to the battery monitor settings They are not as affected by partial shading by vents and A/C units like the crystalline panels and they are very tough. The company that makes them
claims that they charge better in lower light conditions, also.

I'm headed to Quartzsite in about 10 days and plan to boondock for 3 months so I will know more soon. I have decided to upgrade to a pair of 6 volt batteries if they will fit in the battery box under the stairs. Anyone know if
26" x 12" x 10.5" tall will hold a pair? I wish I had room for 4, but that might not be cost affective for me since I will have to make another battery box somewhere else.
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Old 02-18-2012, 02:45 AM   #4
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This is my set-up.

Amazon.com: 272 Watts Solar Battery Charger Kit for 12V batteries. Flexible Solar Panels PV Laminate, Charge Controller & MC Cables: Patio, Lawn & Garden

I hope this is what you are posting about.
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Old 02-18-2012, 07:29 AM   #5
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Yes those are the type I was wondering about. I like the flexibility of them.
The vendor at fmca rally wanted 500 a panel
Needless to say I never buy from vendors until I research they usually are overpriced at the rallies.
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Old 02-18-2012, 12:57 PM   #6
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WOW ! I got a bargain. Taking out the cost of the charge controller, I paid about $240 each for mine. That brings a whole new meaning to "special rally pricing"..
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