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Flexible solar panels


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Go Flex are the ones I have.... and I paid quite a bit less than noted above, a lot less. They were a lot more than all others but on sussing the level of trust in the manufacture was far higher and for my application trust is very important.

 

The key is while flexible they are still quite solid. The cells are mounted/imprinted/something like that onto a panel that is sort of like the stuff they use for real estate signs, a flasher version of course. It is flexible but nothing like a sail cloth for example, it;s more like say cardboard. So while it can bend it won't fly like a flag nor can you 'roll' them up so to speak.

 

So I'd say the Go Flex are semi-flexible rather than full flexible, they are certainly not stiff.

 

As mentioned above I can walk on them. I have bungy on each corner and just hook them where it gives them the best sun blasting. I did consider poles and mounting them on top etc but the lack of flexibility and windage I couldn't live with.

 

The other day I had one lying on the kitchen bench not in direct sun away from any windows and the meter was reading 18.8V. Not sure if that means anything but I thought I should like that.

 

Mine are 100Wers.

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Many products have relatively short guarantees, but you trust their quality and the reality is they do last . I trusted product from AA solar because they're supposed to be the experts, every 'agent' was reselling them. That was part of the buying decision . 

 

'Who supplies them?' AA solar' 'Do you trust them and their products?' 'Yes'.

 

 Only I discovered at the boat show they're failing.

 

 So I'm not happy to hear they are lemons because I went to a lot of trouble to integrate them into a dodger I built.

 So I suppose its just fingers crossed for me and that they last out a few seasons at least. There's no come back .

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Go Flex are the ones I have.... and I paid quite a bit less than noted above, a lot less. They were a lot more than all others but on sussing the level of trust in the manufacture was far higher and for my application trust is very important.

 

 

Bugger, should have said "I know KM, give me a discount"!

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The other day I had one lying on the kitchen bench not in direct sun away from any windows and the meter was reading 18.8V. Not sure if that means anything but I thought I should like that.

Nope. For this scientific demonstration, you will need a Vacuum cleaner (ask wife ;-) and Multimeter.

Take the Vaccy's plug to the wall socket, but do not plug it in. Take the multimeter set to Volts and poke the leads into the wall socket and measure the Voltage. It should hopefully read somewhere around 230V. When you do that, does the Vaccy run??? Nope!

The same thing can be done by pluging in the vaccy but not sitching it on and measuring the Voltage in a strategic place, but much easier and safer doing it the way described above ;-)

 

In a nutshell, the Panels all have an open circuit voltage. It's easy to produce a Volatage, but to "do work" you need current as well and the Panel would not be producing any current. So if you could plug the panel in to something, it would not drive the something very well or at all.

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Hmmmm....so my plans to use those panels power my own personal death star still need some work.

Bugger, I thought it was going a bit too easy ;)

 

I have the test rig all but done so I'll hook that up over Xmas and we'll see what they can do.

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something like this I should imagine!

 

Your accuracy is astounding but you're a week out, I had a haircut on Friday........ and again on Saturday.

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Was at Westhaven yday by coincidence. so we went to Beacon Marine. Seems like a good product, guy there was knowledgeable and easy to talk to, but they are eye wateringly expensive.

Good news is his figures on performance were way ahead of what i had been calculating. No brainer now to go solar.

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I was playing with a couple last week. Seemed OK but there were the odd tiny signs they are built to a price so longevity could be an issue. Only a 2 year warranty may suggest the same.

 

All depends on how mission critical they are. If 'very' then I'd buy better, and did as mine are, but if they are only a nice to have sort of things then cheapies may work fine.

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Burnscoe have a 130w semi flexible and mppt controller for $449  100w setup is $349, any thoughts on the panel itself?

 

http://www.burnsco.co.nz/shop/rv/electrical-lighting/flexible-solar-panel-130w

 

 

I bought a 30watt v version of that one to keep the battery in the Dragon topped up while on the marina for the few months it's there. It only runs an automatic bilge pump.

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100W to battery topping is pretty large. I only use a 7.5W and that works fine.... better after I put it thru a MMPT (whatever) control. I have nothing running when she is parked i.e we have no pumps etc.

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I paid $275 (including shipping) for my semi flexible 100W solar panel about 18 months ago and it was distributed from NZ.  I only use it as a nice to have and am not relying on it for anything important.  It's still working fine.

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