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Old 04-29-2016, 07:34 AM   #15
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Lewster, I'm sure that I'm not the only one who would be interested in hearing about your test on the new flex panels from Grape.
It won't happen for a few weeks as I'm in packing mode for my trip back to Oregon and depart Sunday. I should arrive in OR around the 15th of May, and will hopefully get set up with enough time before my first scheduled installation to get the new panels up on the roof for a test.
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Old 04-29-2016, 07:58 AM   #16
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Solar Price question?

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Old 04-29-2016, 09:41 AM   #17
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Thanks for the advice all! I thought it seemed like a high price as well, but I just don't have enough solar knowledge. Clearly more research needed on my end.
Thanks again!
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Old 04-29-2016, 09:45 AM   #18
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Other than a 200w Zamp Portable system I'm new to solar. Just ordered AmSolar 100w Deluxe package plus a 2nd SF100 panel and tilt bars. $12 shipping is good considering its almost 70lbs.

I'm planning on modifying the Zamp portable panels so I can connect them into the trailers roof solar.

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Old 04-29-2016, 02:59 PM   #19
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It won't happen for a few weeks as I'm in packing mode for my trip back to Oregon and depart Sunday. I should arrive in OR around the 15th of May, and will hopefully get set up with enough time before my first scheduled installation to get the new panels up on the roof for a test.
Perfect timing. By the way, is the flex panel on their website the new one or the old one.
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Old 04-29-2016, 04:32 PM   #20
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I would think the new one but you might call them to confirm.


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Old 04-29-2016, 05:26 PM   #21
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For a trailer, would not a person be better off with the Zamp 200 watt portable and possible a second 100 or 200 watt panel without a controller on the second panel.

The problem I see is that many state parks, and other sites are in the shade. You can move the panels, but no place to put the RV in the sun.

Look like a lot of expense for all the trouble of installing on roof unless you live in Florida, or Arizona.

I am in Oregon, need rain powered panels.

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Old 04-29-2016, 05:44 PM   #22
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I would think the new one but you might call them to confirm.


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No confirmation but apparently up here in Canada where they may make them, the only source is Amazon.ca and they want,you'd better sit down, $432/ panel. WOW!
That's No Power territory.
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Old 04-29-2016, 07:21 PM   #23
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No confirmation but apparently up here in Canada where they may make them, the only source is Amazon.ca and they want,you'd better sit down, $432/ panel. WOW!
That's No Power territory.
WOW is right!!

I would check with Grape Solar in Eugene, OR to see if they are/will be available in the US. I'll check with my 'sources' as well.
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Old 04-30-2016, 01:03 AM   #24
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Thanks Lew.
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Old 04-30-2016, 04:44 AM   #25
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No confirmation but apparently up here in Canada where they may make them, the only source is Amazon.ca and they want,you'd better sit down, $432/ panel. WOW!
That's No Power territory.
Isn't that like $125.00 US dollars?
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Old 04-30-2016, 05:40 AM   #26
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We were able to install five 100 watt solar panels on our 2015 23D International Serenity roof by removing the Winegard crackup television antenna and replacing it with the WineGard auto tuning television antenna. They are charging a 12Vdc 300 amp-hour lithium battery (14" x 16" at 84 pounds) that weighs less than the two stock Interstate batteries and is installed under the sofa just in front of the plastic wheel well. The Magnum MSH-3012 inverter is mounted immediately forward of the furnace along with a new main 30 amp breaker panel and an automatic transfer switch attached to the new 120Vac power inlet on the front of the trailer.

Solar panels have a sales power rating baed upon a laboratory test environment. The reality is about 75% of that rating is real world capability. Thus our 500 watt literature rating could make 375 watts on a good day.

Running the furnace over night in cold weather can use 55 to 60 amps. Since each panel we have is capable of 5.5 amps, the five could generate 27.5 amps. So we are looking at at least two to three hours of sunshine to recover just the power the furnace used. A single 100 watt panel would need at least ten hours to recover the battery power ups in one night. Also, only lithium batteries will allow about 85 to 90% use of the amp-hour power rating. All other batteries are limited to 50% or less of their amp-hour rating.

The so-called "free solar power" party has a real expensive admission ticket. So lots of research before signing a purchase agreement will be time well spent. As mentioned above, AM Solar is a good source and has an excellent solar primer to help bring the novice up to speed on the terminology and concepts involved.

http://www.amsolarrv.com/rveducation/

Both the 23D 300 watt solar system and the 800 watt solar system on our 31' Classic were sourced from AM Solar.
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Old 04-30-2016, 10:39 AM   #27
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Isn't that like $125.00 US dollars?
Or less😆
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Old 04-30-2016, 11:59 AM   #28
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For what it is worth I have 480 watts of go power hard panels on my roof and a 30A go power controller. They work well for me. Just added a go power 1500 watt pure sine wave inverter hard wired into my electrical panel (enabling all 110v outlets in the trailer with the exception of the fridge and AC.

When I was shopping for the inverter the go power was a bit cheaper than the magnum, and draws less amps when idol.

Maybe I overpaid for the panels. Hindsight is always 20/20. Oh well.

When I upgrade to lithium in the next couple years I will definitely look to AM solar.
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