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
[Music] hello and welcome back to another episode of Rich silar talk on today's episode we're going to be starting a new segment called customer questions where we take questions directly from you and find Solutions a common question we receive is can you mix and match panels when upgrading a pre-existing system the short answer yes however you may lose some efficiency from your larger panels so for today's segment we're going to show you how to maximize your efficiency with your panels and avoid the common pitfalls while only using one charge controller keep in mind in order to truly maximize the efficiency of your panels you'll need a separate controller for each type the most common Pitfall is incorrectly wiring your panels causing a drastic loss in efficiency for your larger panel in order to know how to correctly wire them you're going to need to consult the spec sheet for each of your panels for this demonstration we'll be using our Mega 100 watt panel and we'll want to upgrade our system by adding a 250 wat panel what you're going to want to look for on your spec sheet is the maximum power voltage or VMP and the maximum power current or im as you can see for the Mega 100 watt the VMP is 18.6 volts and the Imp is 5.38 amps and on the 250 watt panel the VMP is 18.9 volts and the Imp is 13.2 amps using this information we can determine whether we want to wire it in series or parallel but what does series and parallel even mean when you wire the panels in series you add together all the voltages of the panels and the amperage drops to the lowest panel in the string for this example the 250 watt panel will go from an amperage of 13.2 amps and drop down to 5.38 amps to match the 100 watt panel as you can see here due to the drop in amperage our 250 W panel is performing closer to a 100 wat panel which is more than half an efficiency drop parallel on the other hand adds together the amperages and matches the voltage to the lowest panel in this case our 250 W panel will go from 18.9 Vol to 18.6 Vol Vols showing a drop of about 2% Watts or 5 Watts keep in mind that because both these panels are rated for a 12volt system their voltages are relatively similar making parallel the ideal Choice when you only have one controller this won't always be the case especially when you're trying to wire a 12volt panel with a 24volt panel for that you might want to consider wiring it in series however getting a separate controller will always be the best solution so let's go out in the field and see it in [Music] action all right as you can see here we have our little setup going on we currently have it hooked up in series as you can see we're getting a total of 14.6 volts and 12.37 amps keep in mind that these are about the numbers you're going to be seeing as with all panels there is a bit of an efficiency drop regardless of how you have them set up so as you can see we're only getting around 180 W so now let's see what happens when we hook them up in [Music] parallel now let's see the change in our values now that it's in parallel as you can see we got 15 volts and getting about 275 Watts out of that which is almost 100 WTS more than in series there you have it that's how you can maximize efficiency with mix match panels and a single controller keep in mind that this exact setup might not work for every single scenario so don't forget to consult the spec sheets for each of your panels before wiring them together and as always don't hesitate to give us a call or send us an email and have a solar day [Music] ...
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