Hi this is Amy from the altE Store. You might have seen the series of tutorials thatwe’ve been doing where we’re showing different ways to wire panel that are mismatched. So different watts, different amps, differentvolts. And depending on what is different, there’sdifferent ways that you should wire it; in series or parallel. So you can check out the whole playlist wedid showing that. Now one of the things that we did show wasthat if you do have two different solar panels,
two different sizes, the best way to dealwith it, with charging a single battery bank, is for each of them to have their own chargecontroller. So we did do a tutorial on that, you can checkthat out. But another option is, you could take multiplepanels and wire them together to equal the same output as the other mismatched panel. For instance, I have a 100W 24V panel, andI have some 50W 12V panels. So what I can do, is I can wire my two 12Vpanels in series, plus to minus, and then I can wire it in parallel with my 24V panel,and I don’t have to worry about the lower
voltage 12V panels pulling that voltage down,like it did when I just had a single one. So this is going to show you a great solution. So you can take a look, right now I just havemy 24V 100W solar panel connected. I have my new handy dandy fancy schmancy metergoing on here. So I’ve got 30.7V coming out of that solarpanel. It makes sense, the Vmp is about 36V and it’spretty hot out right now, so it makes sense. And I have 2.4A coming out. Again, that’s right around what I’d expectto see.
The Imp is 2.78A. So that’s the maximum powercurrent, so that’s generally what you’d see when it’s connected, and again I’m not atperfect angles, I’m not at perfect test conditions, so that seems about right. So, what I’m going to do is show you thatI’ve got that 24V panel connected through an MPPT charge controller. In this case it’s a Midnite Kid. And it’s going to my MK Battery 12V battery. So the reason I’m doing it with an MPPT isbecause I’m going 24V down to 12V.
And we’ve done some tutorials showing what happensif you use a PWM charge controller in that case too, so you can check that out as well. So you can see that the output of the chargecontroller going into my battery is 12.9V and 5.45A. So what it did was it took thathigher voltage, it dropped it down, and it increased the current to maximize the output. So you can even see on the meter that I’vegot basically 74W going into the charge controller, just about 70W coming out. So that makes sense, I’ve got a little bitof losses through the charge controller.
You would expect that with any equipment,you are going to have some losses. So now let’s see what I get when I just wiremy single 12V panel to the same charge controller. OK? So hold on a sec. Alright. Now with a single 50W 12V solar panel, theVmp is 18V, so that’s maximum power volts, that’s what you’d expect to see with it connectedat its maximum output. And 2.78A Imp. So that’s the same current as that 100W 24V,but the 12V panel has half the voltage.
Noticias RCN Indigenous Female Elders Travel to India to Bring Solar Energy to their Communities
Two indigenous female elders belonging to an Amazonian indigenous community, have traveled to India to learn how to make solar panels. The women who earned a scholarship, will assist their communities to finally have electricity. Happy and and with many expectations. That’s how Maria EncarnaciÃ³n and Ercilia feel about their journey to India. quot;I’m very happy, because I’ll learn what I’ve not learned throughout my life.quot; quot;I’m happy and at the same time nervous.quot; The two elders belonging to the Uitoto indigenous people from the Amazon were chosen by their community to have this privilege.
quot;I wanted to take this course because in my community we don’t have electricity.quot; quot;We don’t have the means or ways to get these solar panels.quot; The scholarships were awarded through a partnership between a Colombian NGO (ACT), the Government of India, and Barefoot College. quot;We’re working with these women not only to empower them, but because they’re elders (abuelas)quot; quot;and elders always have the commitment to return to their community.quot; The course lasts six months and the women will share this experience with other indigenous women from around the globe Before leaving, the women sent a message in their native language to their families: