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Old 12-27-2018, 08:57 PM   #1
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Tell me about these panels

What can you guys experienced in solar tell me about these panel, pros or cons?
https://www.alibaba.com/product-deta...5e68731dTAG2kv
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Old 12-27-2018, 09:00 PM   #2
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I got more wattage from Home Depot for less money.
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Old 12-27-2018, 09:06 PM   #3
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I got more wattage from Home Depot for less money.
What items? I found nothing at HD for less than $1/watt. These are $.35/watt
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Old 12-27-2018, 10:22 PM   #4
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from specs, great, the high voltage paired with the right Victron SmartSolar MPPT will harvest plenty of power.

Do 1:1 for optimizing for shading

minimum order? shipping cost?

going without effective warranty?

better to buy locally if possible
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Old 12-28-2018, 09:25 AM   #5
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What about something like this:
https://atlanta.craigslist.org/atl/e...761824633.html
Local, no shipping, no tax. Might have a person to return to if they don't work out for ya. I don't know what this particular seller's deal is....it was just the first ad I saw in your area.

We bought from a guy on Craigslist, turns out he really knows his solar setups and was able to give us a good price on the whole system. He'd been selling systems for years from his garage. He was able to help me with some of the technical aspects and good phone support during my installation. He even crimped some wires for me.
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Old 12-28-2018, 10:28 AM   #6
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What's an acceptable amount wattage need for our bus. I know I need to measure the draw on all the items I will have. But considering a nor full build what would be good? Is that kit at 1225w enough, or would double that be better? Again, I assume the color system should be installed before anything else to ensure sealing on any screw holes and able to use nuts and bolts to secure through the roof before any inside ceiling work can be done.
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Old 12-28-2018, 10:34 AM   #7
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Are my thoughts correct, that you would want to complete the solar install as one of the first steps in a build?
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Old 12-28-2018, 10:37 AM   #8
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The maximum watts that will fit on your roof is the right number.

More "efficient" panels in terms of watts per square area are good.

Different sizes can help ensure no empty space left.

In case you meant Volts, then for MPPT over 40Voc, aka "house" or "24V" panels are better than the mass market "12V" ones, minimum 21Voc IMO.
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Old 12-28-2018, 10:50 AM   #9
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Quote:
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What's an acceptable amount wattage need for our bus. I know I need to measure the draw on all the items I will have. But considering a nor full build what would be good? Is that kit at 1225w enough, or would double that be better? Again, I assume the color system should be installed before anything else to ensure sealing on any screw holes and able to use nuts and bolts to secure through the roof before any inside ceiling work can be done.

I guess it depends on what your intended uses are. We'll be boondocking and living full-time, so we put about 1100W of panels and 700AH of battery storage. Until we start living in it, though, it's kind of a crapshoot. Our feelings were that it's better to have more than we need than less. For us, trying to add more at a later date, in a location that had yet to be determined, didn't seem worth the hassle. The few hundred extra bucks we spent wasn't a huge deal. Yes the right way to design the system is to calculate your use first...but we don't really know what the real-world usage is until we start living in it.


We added solar after our interior was built out, using box bolts (expansion bolts) through the skin and into the top of the ribs. We didn't go all the way through the ribs (like we'd intended to do) using carriage bolts. If all goes as well as it has so far, it shouldn't be an issue (but I check for any slop after each trip).
In our case, 4 large panels took up about the front half of our bus....2 in front of the hatch, 2 behind it.
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Old 12-28-2018, 12:48 PM   #10
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The link Drew for local panels I enquired about that kit with 10 panels instead of 5 and he said $1000 for 2450w.
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