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Old 05-26-2016, 08:42 PM   #61
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Originally Posted by Tom48 View Post
For all of you who want to force the flow over the top of the panel, REMEMBER that is how an airplane wing works to create lift. Maybe an obstruction to keep the branches from hooking under the panels or maybe a wedge shaped leading edge for the panels to reduce wind resistance but probably ought to think twice about the aerodynamic effect of directing the flow over the top only. Think bernoulli's principle before you do something that defeats your intention and SUCKS the panels off the roof.
Thanks. Thought about that and now will definitely NOT put any air deflector device in front of the panels.
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Old 05-26-2016, 10:31 PM   #62
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Yes, thanks for the information about the air dam.
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Old 05-26-2016, 11:27 PM   #63
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Thanks. Thought about that and now will definitely NOT put any air deflector device in front of the panels.
LOL I'm sure that you will do a great job. Heck I threw my first set of panels up there so randomly and hit the four feet with big old SS sheet metal screws and slopped dicor on their feet and THEY NEVER CAME OFF So with the planning and forethought that you put in to it yours will be great.
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Old 05-27-2016, 02:58 PM   #64
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Just finished my 200w system yesterday
From AMAZON

2- 100w RENOGY panels
HQST 20a controller
MT5 remote meter

PV 17v@10a / 14.6v@ 12A to battery

roof pic's were taken before I tested system and had not secured the roof cables just in case.

I will be adding one more panel next month .

I used 6 Renogy pannel mounts with 2 screws each panel for extra security.
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Old 05-27-2016, 03:32 PM   #65
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Quote:
Originally Posted by shooter2 View Post
Just finished my 200w system yesterday
From AMAZON

2- 100w RENOGY panels
HQST 20a controller
MT5 remote meter

PV 17v@10a / 14.6v@ 12A to battery

roof pic's were taken before I tested system and had not secured the roof cables just in case.

I will be adding one more panel next month .

I used 6 Renogy pannel mounts with 2 screws each panel for extra security.
Looks good.
Did you use any adhesive or VHB tape or just screws? Is that Dicor on top or adhesive?
The picture shows a shadow on the panel on the right. If so, that will dramatically effect the output with the shadow on it.
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Old 05-27-2016, 10:45 PM   #66
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I used butyl rubber tape under mounts and dicore to make sure. Where ever you locate the panels they will have some shade in morning or afternoon from something, determined by rig orientation. Max panel output is during mid-day when sun is directly overhead and decreases as the suns angle increases.
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Old 05-28-2016, 04:10 PM   #67
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Panel dimensions

Went on the roof and took measurements. I would like to get 200-300 watts total for now. The Renogy 100w are 47x21 and would fit. But 3 panels and lots of Sticky feet. Seems like the better option would be 2 Renogy 150w on sale this weekend for $205 39".5x29" could fit in 2 configurations. Any difference is rectangle vs square panels. I see that most of you with rectangle panels are using 6 mounts. With the square ones I would be more comfortable with 8 sticky feet. Wow, 16 times $12 is $192 for the mounts. Is that overkill?
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Old 05-28-2016, 04:24 PM   #68
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Went on the roof and took measurements. I would like to get 200-300 watts total for now. The Renogy 100w are 47x21 and would fit. But 3 panels and lots of Sticky feet. Seems like the better option would be 2 Renogy 150w on sale this weekend for $205 39".5x29" could fit in 2 configurations. Any difference is rectangle vs square panels. I see that most of you with rectangle panels are using 6 mounts. With the square ones I would be more comfortable with 8 sticky feet. Wow, 16 times $12 is $192 for the mounts. Is that overkill?
From what I understand anything about 4' in length or more they recommend a mount in the middle of the long ends for support. The 47" on the 100w is borderline. Why not go with 2, 160 or 165w panels (60X29). I got 2 165w panels for $350 total including shipping. Shop around. On the square 150w panels you should be ok with 4 mounts on each. That would be 8 total not 16. Not sure how you figured on 16 mounts for those.
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Old 05-28-2016, 04:31 PM   #69
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4 on the corners and 4 in the middle of each side. Your 160's are too large for my roof. They will get too close to the A/C, maybe not??
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Old 05-28-2016, 04:54 PM   #70
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I would rather over engineer mounts than have a catastrophic failure.

JMHO
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Old 05-28-2016, 05:40 PM   #71
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Here's the photo with dimensions. I thought this would keep the shadow from the A/C at a minimum and would partially block air flow while driving. Could put one behind the vent also and one in front instead. What I meant on the Sticky feet was 2 on each side as it's almost square equals 8 times 2 is 16. I suppose I could get by with 2 each on the slightly longer side and 1 each on the other sides.
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Old 05-29-2016, 01:16 PM   #72
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If you scroll way back on this thread, you'll see Wolfwhistle's 150watt Renogy panels that I may get. I know 200 watts total at 11amps isn't going to recharge the house batteries after a 45-60 amp draw down daily. Definitely need 300 watts at 17+ amps. So either 3x100 watt or 2x150 watt. I like Renogy even if it's a few bucks more. Good customer service.
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Old 06-11-2016, 08:56 PM   #73
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Almost ready to buy everything. Saved up Amazon gift cards.
HopHed, which panels did you buy again? I went on the roof today with a template and the Renogy 150 watt panels won't fit without getting too close to the A/c and have a shadow or too close to the vent and back of MH. Will have to either go with 3x100watt or 2x160watt from another brand. Renogy had the 150 watt panels of sale this weekend on Amazon, but can't use them.
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Old 06-11-2016, 10:08 PM   #74
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Here are the two links for the panels on ebay. I got the ones from everbright (165 watt) and put an offer in for the panels less the shipping price and it was accepted. I believe both panels are the same size or very close. Let me know if any questions.

2 160 Watt 12 Volt Battery Charger Solar Panel Off Grid RV Boat 320 Watt Total | eBay

2X 165 Watt Solar Panels Charging 12 Volt Battery High Efficiency Made in USA | eBay
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Old 06-11-2016, 10:11 PM   #75
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Here are the two links for the panels on ebay. I got the ones from everbright (165 watt) and put an offer in for the panels less the shipping price and it was accepted. I believe both panels are the same size or very close. Let me know if any questions.

2 160 Watt 12 Volt Battery Charger Solar Panel Off Grid RV Boat 320 Watt Total | eBay

2X 165 Watt Solar Panels Charging 12 Volt Battery High Efficiency Made in USA | eBay
Thanks!
SCD
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Old 06-12-2016, 01:15 AM   #76
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Quote:
Originally Posted by HopHed View Post
Here are the two links for the panels on ebay. I got the ones from everbright (165 watt) and put an offer in for the panels less the shipping price and it was accepted. I believe both panels are the same size or very close. Let me know if any questions.

2 160 Watt 12 Volt Battery Charger Solar Panel Off Grid RV Boat 320 Watt Total | eBay

2X 165 Watt Solar Panels Charging 12 Volt Battery High Efficiency Made in USA | eBay
If one was to buy 2 kits of the 2x 165 panels what controller do you recommend from the same seller? I see they offer a 20amp.
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Old 06-12-2016, 09:28 AM   #77
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If you are buying 4 panels the 20 amp controller will not be enough. Each panel will put out about 9 amps each at ideal conditions. My recommendation and several others is the Bogart Trimetric controller with the battery monitor.
home - Bogart Engineering
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Old 06-12-2016, 12:47 PM   #78
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Waited too long to buy the Renogy 30 amp Viewstar controller. They are out of stock. They do have the 20amp, but will that be enough to handle the 3x100 watt panels I will be buying. The rating is 5.29amps (imp). That's just under 16 amps for a 20 amp controller, should be ok, right?
I know there are other controllers out there that are better, but I have had great success with my Renogy Suitcase and the Viewstar 10amp controller built in. Plus I already have a Xantrex battery monitor and don't need the added expense of another one like in the Bogart system.
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Old 06-12-2016, 06:31 PM   #79
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20 amp controller for the output of your panels should be enough. Have you decided on how you are going to mount them?
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Old 06-12-2016, 07:18 PM   #80
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20 amp controller for the output of your panels should be enough. Have you decided on how you are going to mount them?
Yes, I'm going to use the StickyFeet as I don't want screws in the roof. Not sure if I'm going to use 4 or 6 per panel. Maybe 3 each on the longer sides or maybe 2 each on the longer sides and 1 each on the shorter side that will be facing front and back. Do you think that's overkill?
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