Where to mount solar panels on roof?

clickies:

http://itechworld.com/collections/solar/products/airflex-solar-panel-kit-100-watt


http://itechworld.com/collections/solar/products/folding-solar-panel-kit-160-watt

http://www.goalzero.com/solar-panels *very pricey*

http://www.amazon.com/Renogy%C2%AE-Monocrystalline-Bendable-Solar-Panel/dp/B00IK19VF6/ref=sr_1_1?ie=UTF8&qid=1412525823&sr=8-1&keywords=renogy+100w+bendable

Harry1954 wrote:
Hey Greenrvgreen I like them, but I think the ones on Aluminium by iTechworld look tougher. these look lie a complete package

No idea how to attach a photo but I think the folding 160W with a bag will be more then enough.

http://itechworld.com/collections/solar/products/folding-solar-panel-kit-160-watt

And better then having it stuck on the roof.

Key Benefits
•Light weight
•30 second fold out
•Plug and charge
•Easy to store

Specifications

•Max Power: 160w
•Max Voltage: 18V
•Max Current: 8.89A
•Open Circuit Voltage: 21.6V
•Short Circuit Current: 9.60A
•Size (L/B/H): 38"x21"x2.75" (966x534x70mm)

What's in the box?
•160w foldable solar panel
•Padded carrying bag
•15' cable with alligator clips
•DC Charger
•Fold out steel stand

This is a complete package and is everything you need.

This same package was $240 or $245 last year at Solar Blvd in Norco, CA. Do not look for the item on line, call them, order one on back order, and pay to get it shipped, you'll be mega dollars ahead.

Here's my 120 Watt portable version that I bought at Solar Blvd last year in action at Quartzsite.

What are your thoughts on http://www.goalzero.com/solar-panels

90W for $449 dollars seems expensive. The full kit with a battery is $1799. Seems crazy. I keep looking at the plastic ones and think that I need a frame around it.

atreis wrote:
Here's an example of one (Grape Solar flexible 100W panel).

At a guess, because they cost 2-2.5x more per watt than the non-flexible sort.

Yes price is a big factor. Mostly we look for $1 per watt or less.

I followed your link and I don't see the weight listed, just more assurances of "lightweight". They "appear" to be a similar panel as my Renogys, with no glass face, only the addition of an aluminum frame, so they are probably not too heavy. They are also a whopping $4/watt!

Again, I own and use two of the Renogy 100w bendable panels, and they work very very well. I have verified their durability with rough treatment in the field, and I can find no issues whatsoever.

I agree with those here who are setting up portable panels away from their RV, and getting the best of both worlds: The comfort of camping in the shade, and the maximum free electricity available from full, direct sunlight.

Hey Greenrvgreen I like them, but I think the ones on Aluminium by iTechworld look tougher. these look lie a complete package

No idea how to attach a photo but I think the folding 160W with a bag will be more then enough.

http://itechworld.com/collections/solar/products/folding-solar-panel-kit-160-watt

And better then having it stuck on the roof.

Key Benefits
•Light weight
•30 second fold out
•Plug and charge
•Easy to store

Specifications

•Max Power: 160w
•Max Voltage: 18V
•Max Current: 8.89A
•Open Circuit Voltage: 21.6V
•Short Circuit Current: 9.60A
•Size (L/B/H): 38"x21"x2.75" (966x534x70mm)

What's in the box?
•160w foldable solar panel
•Padded carrying bag
•15' cable with alligator clips
•DC Charger
•Fold out steel stand

This is a complete package and is everything you need.

Sorry to be a broken record, but these 4-lb panels. . .

http://www.amazon.com/Renogy%C2%AE-Monocrystalline-Bendable-Solar-Panel/dp/B00IK19VF6/ref=sr_1_1?ie=UTF8&qid=1412525823&sr=8-1&keywords=renogy+100w+bendable

. . .set on the ground and tilted towards the sun will harvest FAR more energy than the equivilent 20-lb panel nailed to the roof of your RV, even if you don't park in the shade. Get 50 ft of 12awg duplex cable and some Y connectors, and you're good to go.

Yes, they are twice the cost, but now you don't have to park in the sun and boil your brains out just to prove a point about solar. I have 2 of these now and I'm going to get at least 2 more, and if I get around to selling my Kyocera 315 boat anchors, I'll get an additional 4 more, for 800 watts total.

If you park under a tree or in the shade the solar will not perform as well. Why not get a folding set like these ones

http://itechworld.com/collections/solar/products/folding-solar-panel-kit-160-watt

I am trying to work out if I should fix the panels or get a folding set that I can move around the trailer and chase the sun. The little kits look like they are only good for charging a phone.

What about these ones
http://itechworld.com/collections/solar/products/airflex-solar-panel-kit-100-watt

They are down the road from me, its on aluminium and comes with a 2 year warrenty. Apparently I can just sickaflex it to the trailer. Comes with a solar charge controller and cables.
Seems a better deal then the plastic ones or the glass ones

Here's an example of one (Grape Solar flexible 100W panel).

At a guess, because they cost 2-2.5x more per watt than the non-flexible sort.