240 Watt Solar Panels There’s different ways to look at 240 watt solar panels. One would be to find a system that has 2 -120 watt panels. Or you find a system where 240 watt panels are one of many that add up. For example if you need a 4700 watt system or to replace panels within that system.

The do it yourself kits are very popular for permanent or mobile installations. High grade mono-crystalline panels with power inverts, wiring, charge controllers, sometimes even batteries are included, can be found inexpensively on eBay.

Complete systems ready to go, usually at 12vdc but can vary. Kits like this are good for backup or for low requirement situations. Since it’s stand alone you also don’t need outside help as in permits and such since it doesn’t tie in to a grid tie hookup.

With a kit also the power inverter will be matched to the system allowing you to quickly connect your 100 volt appliances directly.

I really like videos where you can see collections of panels by people that use them. Their take on the units and you get to see how they implement them into their design.

Video Transcript

good morning all I’m out in the garden this morning which is not like me because it’s absolutely freezing out here but I wanted to show you my new solar panel and it’s this and it’s absolutely massive this is a 240 what panel normally intended to be put on a roof but a jaunty got in touch with me and jaunty said I’ve got a spare solar panel from a rooftop installation would you like it and well i’m going to turn down a big solar panel so this is a centro solar s 240p 60 professional now 240 is 240 walks you can see there the the P max maximum power 240 watts p60 i’m pretty sure 60 means that it’s got 60 cells and p i’m guessing means poly crystalline so you can count the 60 cells we’ve got very clearly well actually maybe not very clearly because the busbars kind of her look a bit like dividers but you can see if I get close up but that’s two cells 3 4 5 6 06 across and 10 down as it is in this orientation but what about this poly crystalline thing well that looks a bit like poly crystalline to me you can see the sort of strata of the crystals within the silicon there so i’m pretty sure it is a polycrystalline panel now it’s not a bad day today in terms of sunshine skies reasonably clear the sun is out it’s a little bit hazy but there is sun on this panel unfortunately a bit of a shadow just at the bottom there which i think is the top of the head because the Sun is so low down but I think we can take a couple of measurements of this panel so let’s see how we go jump they also very kindly gave me this clamp meter which actually does do DC amps in the clamp section the moment I’ve just put and probes into it and I measuring DC volts now this thing has mc3 connectors and I don’t have any mc3 is to interface with it so I’m limited in what I can do but anyway we’re getting 35.4 volts let’s take a look at the panel and the open-circuit voltage is quoted there as 36.5 three so a little bit below the open-circuit voltage and that’s almost certainly because I’ve got a little bit of shadowing on that bottom row of six cells now the next thing i want to measure is short circuit current and it’s on there as 8.7 amps well now that’s going to be in full midday Sun in the middle of summer I’m certainly not going to get that now but let’s see what we measure from this panel now this meat doesn’t look like it can measure amps from the probe connections so I’m going to measure amps from the clamp and in order to do that what I’m gonna have to just short circuit the panel so let me take these two connections and connect them together and there shouldn’t be any crack or spark because there’s no actual energy being released this just goes directly into from no current too well short circuit current now I should be a measure that with the clamp meter so that switch that around to DC amps clamp it round the cable and yeah we’re measuring 3.73 . 8 amps now probably a fair bit more than that if i took that shadowing away it is perched up on a piece of wood but i’ll see if i can perch it up on something higher to get more amps right that looks better however perched up on to this what is it a pot planter pot thing so it looks like it’s all in full Sun let’s measure the count again and yeah now we’re getting about 4.8 amps not quite this 8.7 amps maximum the panel that’s not surprising because we’re not far off the middle of winter so 4.8 times 36 volts this thing’s actually generating about a hundred and eighty what’s at the moment which is pretty nice in this low Sun course that hundred 80 watts is just being dissipated into a dead short so something’s probably getting warm so now just gotta decide what I’m going to do with this panel and I’ve had a few ideas I could put it up on the kitchen roof there and get myself a 24-volt grid tie inverter and use it to just offset some of the base load in my house electrics the other thing I thought is I could use it to charge the electric bike because the battery in there is about 25 volts and this panel has a rated voltage or a max power voltage of 20.75 that should be enough to charge that bike battery but it’s just a beautiful thing is new and if you compare it with the hundred watt panel up on the on the friends there it’s also a very big thing Syria

240 Watt Solar Panels that have been located here
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