Mixing Different Solar Panels With Different Wattage (Mismatched)
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- čas přidán 14. 07. 2024
- 🎁 Free diagrams: cleversolarpower.com/free-dia...
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In this video, I will discuss how to effectively wire mismatched solar panels. This guide is ideal for those who have solar panels with different wattage and are seeking the most efficient wiring method.
We begin with an essential overview of series and parallel wiring configurations. In series wiring, the voltages of the solar panels are combined while maintaining a constant current. For instance, connecting two 20V, 5-amp panels in series results in an output of 40 volts at 5 amps. On the other hand, parallel wiring focuses on adding the current from each panel, keeping the voltage unchanged. For example, the same 20V, 5-amp panels, when wired in parallel, produce 20 volts at 10 amps.
The choice between series and parallel wiring depends significantly on whether the panels have similar voltages or currents. Panels with the same current but differing voltages are best wired in series, where the combined voltage increases while the current remains consistent. Conversely, panels sharing the same voltage but with varying currents should be wired in parallel, resulting in a higher cumulative current.
To illustrate these concepts, I will walk you through examples involving 100W and 200W solar panels, showing how their combined power output varies based on the wiring method. We will also simulate a scenario with three solar panels of different ratings - 100W, 88W, and 108W - and calculate their total power output in both series and parallel configurations. Our calculations will reveal that parallel wiring is often more advantageous, especially when considering wire thickness for higher currents.
Furthermore, for those with a variety of panels looking to connect to a single charge controller, this video offers practical advice and calculations to determine the best wiring method. In cases where voltage and current differences are significant, using multiple charge controllers may be the optimal solution.
We will also delve into hybrid connections, using an example with two 50W panels and one 100W panel. This section demonstrates how combining panels in series and then in parallel can achieve a balanced output, aligning with the panels' total wattage.
Lastly, I invite you to download my 7 free solar diagrams, a perfect resource for anyone overwhelmed by off-grid solar planning. These diagrams, complete with wire and fuse sizes, can be a source of inspiration and guidance. Check out the first link in the description for this valuable resource.
00:00 Basics
01:02 Same current
01:50 Same voltage
02:33 Simulation
04:25 Hybrid connection - Jak na to + styl
🎁 Free diagrams: cleversolarpower.com/free-diagrams/
📖 My best-selling book on Amazon: cleversolarpower.com/off-grid-solar-power-simplified
One of the best simplified, yet very thourough explanation I have ever seen on the Internet, Thanks A Zillion
Seriously you are one of the best! Your teaching skills are amazing!!!
Thank you! Comments like these keep me going 😀
Really clear videos with zero fluff, thank you!!
Your explanations are easy to follow, simple and complete. Thank you
I like your style. Very comprehensive. Thank you for putting this content out there for us.
Excellent explanation of how to wire panels, thanks 😊
Great explanation!
Good for me I have listened to many videos I fund your explanation better thanks
Good video. Thanks.
Good explanation Sir Best of luck 👍 from Afghanistan really like solar project .
Great video!
You made my day, thank you
Glad I could help!
Thanks, I'm getting ready for a hybrid inverter system for my house.
If you have mismatched panels, you can add another charge controller next to the hybrid inverter.
Thank you.
Thanyou master helps
Great channel! 🤙😜
🤙
Thank u
Something every mismatch solar panel video fails to mention is the Diodes. The lower value diodes in smaller panels must be changed to the value of the diodes your highest output panel .
Hi, thanks for the video. I have 2 panels 170W (20.4 Vmp, 8.3 Imp) and 100W (17.2 Vmp, 5.8 Imp), MPPT regulator and just one 100Ah lead gel battery (so changing with 5A max). I have 2 panels just for the cloudy days. Is the voltage difference to big? Should I use bypass diode between the panels? I have MBR2545 schottky 45V, 2x15A diode.
Best to wire in parallel. 14.1A*17.2V=242W total
I have mismatched panels. I run each set (two types) through its own charge controller.
That's also a possibility.
Thank you. Can I ask when you refer to panel voltage are you referring to the nominal output voltage or another measure?
nominal voltage = Vmp, nominal current = Imp
Hi, I had 3 groups every 1 group (3 solar panels in s. (every solar panels 250w)) but one from one group had one solar panel is damage and want to remove from my 1 group and will be 2 solar panels only for only one group but others groups 3 solar panels ((1+2+3);(1+2+3);(1+2)); could i run it from inverter mppt 4kw or will be problems ?
I have 12v 100watt 3 pannel , single battery , how to connect pannel series or parallel or hybrid , mppt charge controller voc is 60..
How about 6pcs 150w panels the one panels is low harvest to others 5pcs ...what is best config setup?itry series the 6pcs but results is 100w harvest only... Itry 2string 3pcs series and parralell to but its still low harvest? My setup is 24v
Please, tell me why you use the lowest of the amps in series and the lowest in volts in parallel?
Because in series we add voltage together and in parallel we add current together.
Hi sir hope you well.
Im from South Africa im in the market for solar system.
I would like to find out if does it matter when you connect a rated 24v panels in series parallel combination to a 24v hybrid inveter
Thanks
Connect in series up to maximum allowable input voltage of the charge controller.
I have 5 panels of 350w, 3 panels of 340w and 4 panels of 390w. Total= 4330watts. Getting 2.2kw power in peak hours. Is it a good output? All connected in series
sir good day is it safe to connect 2 100 watts solar panel and 1 50W PV panels and all in parallel to one charge controllers?
No, they will need to be separate. Repeat the calculation in the video with your values.
can I connect first in parallel, but then connect those combined leads into a series array?
Yes, but why would you do that? It's first series and then parallel.
@@cleversolarpower I need to drop my voltage input to charge my portable battery and connecting my panels in series first gives me a total voltage that exceeds my input voltage requirement for the battery.
For whatever reason there is not much info on connecting parallel first, but from what I've read, 2 panels in parallel provided better energy output if one panel is partially shaded compared to 2 panels in series and one of them being partially shaded.
Can I mix amorphous panels with monocrystaline panels?
Mixing different types is not a problem.
how would you conect one solar panel 30V, max 13A and one panel 20V max 8A in paraler ?
Get a micro inverter.
I have filled-in my information a number of times on your link, but have not received the drawings, or a link for them.
I'm experiencing difficulties with it. You can try again at a later date.
I setup a 420wat, 32v panel to a 100ah change controller. 12v 220ah battery, and 1400wat inverter. Is this ok? Or should I increase my panel to 2
It depends if your battery gets empty. So your load decides if it's underpowered or not. That's why we start with a load analysis first before sizing solar panels, batteries, etc...
@@cleversolarpower can a 420watt fully charge 220ah battery?
hi ..i have three solar panel each one is 550watts,,,42.57V,,,12.92A,,then added one solar panel same company but 540watts,,42.15 v,,12.81A...my inverter is 1500 wat.2000 solar watt.mppt,,,,is this addition is good or will cause high resistance and will affect badly my system and inverter..thank you
The panels you mentioned are basically similar, so there is no problem connecting them in series.
I have a 300w pannel at 40v 8A and 2 100w at 20v 5A how do i get 500w?
Wire the two 100W in series and then parallel with the bigger panel.
Sir i have 4 panels for 450watts and 4 panels of 580watts, how do i connect them to get maximum power?
Two separate charge controllers.
As you are the best teacher I am going to ask you a simple question , or better I explain to you what I am doing and tell me if it`s good ?
I have 3 solar panels each gives 18V / 1.6A that I put in parallel to have the max current out of them to charge a lead battery .
So as lead batteries should be charge at 14 .5 V max , Then if add a solar panel that gives 15V / some .5 A ( I really don`t its amperage ) cause I don`t have ma meter to check the amps out of it and also nothing written on it .
Adding that panel to the others will drop the voltage to 15 and add let say 0.5A which will normally gives me 15 V /5.3A .
Will this be ok to charge a battery without damaging it , if I don`t use any solar charge controller .I have a switch to cut the solar power on the battery when not in use for the moment .
Will use a 1,000W inverter for experience on a computer with the monitor + a fan + a led lamp of 20 w at night .
the battery is 12V/ 74AHR .I will change that battery to one of 90 AHR as soon as possible .
Will this work and for how many hrs all this will run before it run out of power ?
Thanks in advance dear teacher 😊
Don't put the panels in parallel if you have an MPPT. It's the same power rating if you place them in series or parallel. You need to use a charge controller. The charge needs to stop if the battery is full. Check out my video about how many batteries for a 1,000W inverter.
@@cleversolarpower . Ok I can see that you have not understood what I explained to you and your reply does not get me any help . But thanks for the late reply .
I already figer it by myself and every thing is working in parallel .
Good video. Thanks.