Here you can find Solar Panels and technological accessories related to Solar Energy: Click Here If you want to learn about Solar...
Here you can find Solar Panels and technological accessories related to Solar Energy: Click Here
If you want to learn about Solar Panels, to advise you before buying or to build your own Solar Panel: Click Here
so I've been wanting to expand the solar capacity for my Caravan uh and wanting to upgrade my portable solar options I've currently got a 300 watt solar blanket KT cables one which is you know good for weekends in a way that folks sort of extended trips off grid I was wanting to you know get some a portable solar system that was a little bit more beefy in what it could produce as far as solar harvesting so I've got this Moby Outdoors solar panel off eBay just arrived today and I haven't found found any reviews of these or any sort of uh overview of these on YouTube or anything before but I thought I'd give it a go um I was looking at the AL Volta 440 watt panel which it's about 800 bucks so which is a lot more expensive but uh this is advertised as a 400 watt panel now straight away I know that's a completely false statement um just doing some basic sort of math uh based on surface area and cell efficiency now they claim this is a 400 watt panel uh and and has a very high claim of a 25 efficiency rating so just doing the math it's a 1570 by 770 panel at 25 percent further so that's about a 1.2 meter squared surface area and at a 25 surface uh efficiency rating that would give it a top sort of output at around 300 watts um so already just using their own specifications that they publish uh I'm not expecting at all to get 400 watts and in fact uh from everything I've read 17 efficiencies much more of a uh more likely sort of efficiency rating for these sort of generic solar panels so that puts us down at around approaching 200 Watts which is what I realistically expect out of them um so I actually got three of these that I plan to series together and put into my mppt charger over there to uh sort of have some solid so as long as they're getting around that 200 watt Mark I think it'll be good enough for what I want uh but so what I'm going to do today just get this thing unpacked and uh uh yeah get it out in the sun over there and test what it can put back into a battery via the mppd charger first as a just a single panel and then I'll put the three together as a series and see what we get so that's the panel unpacked but anyway we'll have a look at the back and I can hold it still that's that's the specs on the back which does say 400 watts um a pretty good solar production day so just do a quick temperature test on the panel before it goes out so yeah it's sitting at about 16 degrees I'm gonna have a quick look at uh ambient temperature here at the moment I've got the temperature probe on is about 23 degrees and I'm just gonna use this highly sophisticated um stand here to get the solar panel directed at the sun I've got a 40 amp EP ever mppt charge controller and a heavily discharged itch world 120x lithium battery there and I'm going to use that as the the the drain or the load on the panel right we'll get this set up and we'll have a look at a few other specs as well once I get the panel set up and see what we can get out of one panel so looking at the power meter here we're getting over 1300 about 1350 nearly watts per square meter which is fire in excess of the Thousand watts per square meter used for standard test conditions um just Cloud coming over now but let's have a look at there we go 180 Watts Max just there and a maximum of uh wait for it to come around here we go 13.3 amps coming into the battery so what I'll do now is I've actually got another two of these so I'll hook them up in series and see what they can pump out in a series configuration got these panels set up in a series now tried to get them in an arrangement so there's no shade any of them or just well the clouds are over the sun just a little bit of a test on temperature so that's the one I've been testing for a little while sitting at about 46 degrees this one I've just put out about 43. and this last one yeah it's still 36. as you can see here PV output here is uh right up around there we go we've just ticked over 600 watts uh 51 amps 51 volts PV input and 11 and a half amps um as far as output Max over here uh moment we're sitting right on 600 ish coming into the battery uh what's our Peak Peak there of 650 to 51 Watts which at when we come around to amp hours or amps rather 46.19 amp Peak there so uh the VOC on this setup being in a limited to the around that to 50 52 volt Mark we're getting no new nowhere near the maximum of the 100 volt input of the mppt there so we can push it a little bit further quicker Radiance test on these panels getting 1300 [Applause] at 1200 there get over the back one about 1200 again so anyway that's what three cheap eBay panels can do at least at the time of purchase we'll see what they they can put out six or twelve months down the line but obviously nowhere near what the manufacturer specified at 400 watts but always knew that was going to be an impossibility anyway just based off the uh surface area of the panels and the efficiency stated the absolute maximum even by their own specifications is uh just on 300 watts per panel and I'm probably be lucky to see 200 Watts out of each panel but by the time I applied um eBay discount codes and uh discussed a bit of a refund from the seller themselves the price per watt came out at under a dollar per watt for these three so it's still reasonably good value or I think uh at least initially we'll see how they go for duration ...
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