How To Get The MOST Power Output From Your Solar Panels!
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- เผยแพร่เมื่อ 23 ต.ค. 2019
- How to ensure that you get the most power output from your solar panels. Boost solar panel efficiency/power output by making sure the correct low loss bypass and blocking (barrier) diodes are used. Enjoy the video!
Some LOW LOSS/LOW FORWARD VOLTAGE DROP diodes can be found here:
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ATTENTION: 10a10 is a blocking diode used for many solar panels, but the diode's forward voltage is too high. Below are a few good alternatives.
sb1040 to sb10100
10SQ040 to 10SQ100 or 15SQ40 to 15SQ100
SBR10U40CT to SBR10U100CT
MBR10-100
Could we use a low resist Mosfet, acting as a blocking diode?
Can you give me the exact number of diode for my 310watts monosolar panel thank you sir..
@@edwingonzales546 2(155W) panels in series? Or one big panel?
@@electronicsNmore only 1 big sir..
@@edwingonzales546 25SQ045
Thanks for the great information, I'm definitely going to check my solar panel now.
Thanks for watching Tim! Be sure to share.
I've been looking into solar panels and this is very helpful information. Thank you for the excellent video!!
Glad you enjoyed the video. Your recent Ethanol video was outstanding!
You might want to give germanium diodes a shot. They have a much smaller voltage drop. Many, if not most early transistor radios used germanium diodes and transistors for this reason (better battery life)
@@tarstarkusz Germanium diodes are usually around .3v, and they can't handle too much current.
I'm pretty sure the Soviet ones on ebay are much higher power and drop .2v
@@tarstarkusz I've never tested one.
Good information here thank you for taking the time to make these videos you explain thing well.
Glad you enjoyed the video! Be sure to share. Thanks
That was very helpful, never checked the FWBR before for a difference.
Glad you enjoyed the video! Please share.
Something important to keep in mind is that diodes with a lower voltage drop will tend to be more leaky, passing many milliamps with reverse polarity, and it gets REALLY bad if they are warm or hot.
They are starting to make "active" diodes which have a Vdrop of single digit millivolts and very small reverse leakage just for PV systems!
You're 100% correct, but there are low leakage Schottky diodes available, and the power gains during the day, far outweigh the losses at night. The sb1040 has a max reverse current rating of 500uA when the junction is 25c hotter than ambient, which is negligible. Thanks for watching!
The purpose of this SB1040 is not a Solar Blocking Diode.
@@GeertDroid Just because a part does not advertise it is capable or suited for an application doesn't automatically rule it out in that particular use-case. As an engineer you look at the specs of a part and determine it's suitability based on engineering knowledge.
This diode has a higher-than-average forward voltage drop (0.5V at 10A and 95 C), lower-than-average reverse leakage (0.5mA @ 25 C although increases to 50mA at 100 C), and a pretty average reverse breakdown of 40V, making it well suited for a budget 24V PV system. You can also tell that the junction is rather big by the really high 1.6nF capacitance of it. I would not trust the brand behind it and would prefer a name-brand diode personally.
Wow thanks for the insight.
You're welcome! I have a very wide range of videos on my channel, so be sure to look over my video playlists for many other videos of interest to you, and most importantly share. Thank you
I might just test this out...
Thanks for watching! Be sure to share.
Yes you might do that, good excuses to make another video.
Very helpful info thanks. 🤙
You're welcome! Be sure to check out my extensive video playlists and share. Thank you
New Subscriber here - absolutely! Wow Doug (I think that's your name), what a great explanation and demonstration of this effect from the different Diodes. I am NOT an electrical engineer whatsoever, but I am building a Solar/Lithium powerhouse of an RV, and like most users of Solar, I am looking for top efficiency and consistent performance from all parts of the entire electrical system/grid that I am hoping to build.
This is a terrific channel, and I can't wait to get into your archived material to see what other learning modules you have for us. I have been studying Solar/Lithium (LifePo4) energy storage, and all of the related components to make my dream a reality, for about 2 years now, and for me it has been very challenging, especially the math and the electricity, but so far I know just enough to be utterly dangerous LOL. I appreciate YT content providers like you that take the time to teach us in a very straight-forward and easy to follow format - BRAVO for that!
Okay, time for me to start digging into your other videos....your channel is a very exciting prospect for my afternoon learning time.
Thanks again, from a new Sub - JohnInArizona
Hi John. Thanks for the kind words. Some people say why bother over a few percentage loss, but to me it all ads up. Just like using the wrong size wire, or too long of a run from the solar panels to your charge controller and battery bank. Thanks for watching! Be sure to share.
Enjoyed and subscribed. If I have 12 x 250watt panels for a total of 3KW, does each panel have a diode or is there some device acting like a diode for the whole system?
I have two 200W panels in parallel, no diode. No problem. The loss is so small that I chose to ignore it. In addition there is a power module feeding 13.8V onto the battery after the regulator, it has a reverse-blocking diode at the output anyway, so no problem.
Thus, when connected to the powergrid everything takes care of itself, sometimes the voltage from the panels are higher and they do the supply, when not, the power module (grid) does - seamlessly.
I expect the regulator to block reverse leakage from the battery at night, it would make sense, but I have not bothered to measure it.
Oh, and no diodes between panels, I chose to skip that too, no problem. They charge the 120AH battery like champions, from empty early in the morning to fully charged at perhaps 9-10 pre noon.
Hey Doug. Thank you for this very interesting how to ! If I seen correctly, the voltage looked a bit higher before the diode and was much better with a lot less voltage drop. every gain helps. In my jewel thief experiments I did notice a increase in the voltage output using a full wave rectifier. Not sure why though any thoughts Doug. Has always I Liked,Shared,Added to playlists. All my best.
You must be getting negative and positive pulses out of your device. Look for a schottky full wave bridge. :-)
10a10 are in my panels, didn't realise how lossy they are, just cheap and cheerful for manufacturers.
10a10 isn't a horrible diode, but there are much better lower loss diodes available. If yours are bypass diodes, then the only time they will be used is when the panel gets partially shaded. If you use 10a10 as a blocking diode in full sun, the losses add up over time.Thanks for watching!
The best way to get the most efficiency from your solar panels is to use a MPPT controller (max power point tracking charge controller).
Solar panels seem to be current limited but produce upwards of 400V unloaded, that means if your panel is putting out 12V at 5A for example into a 12V battery its only half the power compared to it putting 5A into a 24V battery.
Watts = current x Voltage.
MPPT charge controllers use a micro controller to test your panel at any given moment and determine what voltage and current combination will give you the most Watts out.
Also if you use the incorrect diode in some situations you could have big problems like it avalanche and causing the battery to drain back into the solar panel at night.
Look up max power point tracking charge controllers and maybe make a video on those, you can also get max power point tracking grid tie inverters if you decide to avoid battery banks.
Awesome!!!!
Thanks for watching!
I don't know about this. thanks for sharing information, it helpful.
Glad you found my video helpful! Be sure to share. Thank you
this explains a lot why two identical panels pointed exactly the same can have a huge dif in voltage (1-2 volts).. some have crappy diodes.
Some also have solar cells that output a little more, or a little less voltage.
Nice video. Don't forget if you replace the schotke diode to get one that is rated at least 4 Amps, and check that it is connected correctly. Once the diode is connected it will be difficult to test if it's connected correctly.
For a 50W panel, that's fine, but a 100W panel needs a min of 7A-8A. Thanks for watching!
Where can I get me a 50 Amp solar panel with a charge control and something that can detect a short circuit. Can a 2,000w solar panel work for a jumpstarter to get more watts to power stuff ?
Great video
Thanks! Be sure to check out my other videos and share.
Nice! Keeping the camera from darkening/whiting out the important parts of the project is definitely a challenge lol.
Should have checked the blocking diode in the camera.
How do you know which diode to get for your solar Panel? If I got the sb1040 will it replace the diode on any panel? Or is there something else that needs to be considered when replacing the diode?
All depends on how much the output voltage and current is for your panel or array.
Awesome vid. How about telling us a little more about the diodes. Not how they work, but rather the difference between the good ones and the bad ones.
Thank you. Just look for 40v to 100v Schottky diodes that have the lowest forward voltage drop and can handle the current generated. You can find many datasheets online.
IS there a scenario in which a bypass diode is not needed ? I have two panels on the roof of a van and both are in parallel. I suspect I don't need a bypass diode. What do you think? regards, Sander.
Hello. Yes. When you only use one panel, or place panels in parallel.
Does adding multiple Schottky diodes in parallel increase efficiency because of a lower forward voltage drop?
Hi Joe. Using two will result in a lower forward voltage, but you cannot
use diodes in parallel because they're not exactly the same. One will
handle most of the current and burn up. Be sure to check out my 200W
folding solar panel video from a few days ago. Thanks for watching!
Yeah, series panels do not need diodes between them, 0.6v+ x 8 panels is a good bit of wattage, to be peezn, away! I thought about bypassing the diodes, since my controllers don't need them anyway, thanks for the info!!!
On a solar array, where trees may cause shading of the panels at times, I'd replace all the bypass diodes with very low forward voltage diodes.
@@electronicsNmore perhaps you can do a demonstration of that for us newbies. I'm sure it would be well received. Thanks in advance!!
excellent video. 😀👍
Thsnk you! Be sure to check out my wide range of videos and share.
Can you put a link to the sb1040 diode please. thanks.
See pinned comment.
why did you not connect the multimeter directly across the diode which would have also shown the Vfwd of the diodes?
People like to see the volatage at the load, and the supply side. It's easier to see what's going on.
v.v.v.v.v.v.vv. gooooooooooooood job sir....................... Love 4rm Peshawar,Pakistan
Just curious. You posted a video a while back using a mosfet for reverse polarity protection. Other than cost for mass production, wouldn't this be a great alternative for the blocking diode on a solar panel?
No, it was a Schottky full wave bridge rectifier. :-)
@@electronicsNmore Thanks but I was referring to this video th-cam.com/video/IrB-FPcv1Dc/w-d-xo.html Not sure how it would work for the bypass diode but I don't see why it wouldn't work for the blocking diode. Sorry but I haven't played with solar panels yet.
One thing to remember about Shottky is that max operating voltage is 200V above that they will be damaged.
I've seen them up to 1000V.
The blocking diode is only used when a part of a panel is in shadow. So under normal working conditions the diodes is not in use and thereby it does not really matter if you have a 0,7V drop...
Incorrect, you're referring to a "Bypass" diode
No, you're thinking of the bypass diode. They serve completely different functions. The bypass diode allows bypassing of panels which are in shade, the blocking diode prevents current flowing backwards and discharging the battery through the panels.
Checked my experimental solar panel for the blocking diode, the connection box was poured full with some epoxy... 😐
Yes, many do that.
You can still measure the diode voltage drop on the cables, for that matter, you can measure the voltage drop all the way from panel to regulator, to see if the cabling is adequate
I have a question. Can you increase the efficiency of your solar panels if you put aluminum foil or other highly reflective fins on the frame much like you would do with a solar oven or would that fry your panels ?
Yes, but then you'll be making the panel hotter. As a result of the higher level of heat, the voltage will drop lower, and the panel's life will be reduced.
@@electronicsNmore , thank you.
Can you show a circuit diagram and explain how it works.
Thank you.
Check out the link below. Thanks for watching!
www.adityagreens.com/uploads/8/2/7/6/82762066/new-bitmap-image_3_orig.jpg
@@electronicsNmore Thank you.
Enjoyed and Subscribed ...and like a good friend said... Ill be back
Great to hear Colin! Be sure to check out my extensive video playlists below for many other videos of interest to you, and most importantly share my channel with others. Thank you
th-cam.com/users/electronicsnmoreplaylists
Not being an eletrical engineer how would I install these in a solar panel/array? I have 9 x100W panels 3S 3P on my conversion van.
9 in series?
@@electronicsNmore No..3 in series and three sets of those in parallel.
@@johntatman9168 Usually a blocking diode is placed at the output for each group, then all three groups connected together.
What about increasing amp output from a 200w Solar Panel...?
Possible to do...?
A panel can only put out so much. To get a higher current output, you'd need to increase the intensity of the light on the panel, which shortens panel life expectancy.
@@electronicsNmore Yep, heat kills electronics.
Excellent comparison….let’s get nitty gritty….now heat buildup in a continuous solar load environment…..give us a fool proof heat sink for the sb 1040 please…?
Like to install them in a switch or combiner Box…..so cool…
Just curious. why would any manufacturer not just put better diodes since these are pennies in bulk buy? They definitely would love to have higher producing panel. Something is not adding up. But thanks
Because they're either stupid, or trying to save money buying lower cost diodes.
👍
Is the purpose of the barrier diode for reverse polarity protection?
The purpose of the barrier diode or blocking diode, is to prevent current from the battery flowing backwards into the solar panel at night.
@@electronicsNmore how about putting a light controlled relay in place of the diode?
@@electronicsNmore Ah, thank you!
That makes sense.
It's amazing how cheap electronics chooses to save a few pennies.
(Or even not so cheap)
@@electronicsNmore how about at the grid tie system?
@@JoshKaufmanstuff it's not to save pennies its to get the resale... The system is just good enough.
What efficiency loss is there? I suspect very little, solar is a high voltage system and manufacturers would tend to use schotkey anyway!
It's not a lot, but it adds up hour by hour.
@@electronicsNmore Maybe save the owner some $$$$ so they won't have to buy that last panel or so! Like a congessman once said,,,, a $million here and a $million there,,,, soon that adds up to a lot of money!
The SB1040 can only handle 10 amps a 100 watt panels is 8 amps almost the limit for that. The short circuit current is over the rating for that diode. A 150 watt panel would be over the current for that diode. I like to keep the current down around half the rated current for things because I found that things work better and longer that way. Also that diode is going to get worm pushing it almost to its limit and as it gets hot it is going to start dropping more voltage. I don't see where changing that diode is going to really help that much over time. It already had a schottky diode all the ones I have seen do. Only if you find one that doesn't have a schottky diode is it worth changing and I don't think you will find any of them. So this is not worth messing with. To change the diode to one that may fail in a year or two just don't sound like a good idea!
Clearly you'd need to use a diode of the proper current rating for your panel wattage. The sb1040 can be easily cooled using a small heat sink with fins. The SB1040 is just fine for a 100W panel. If you're worried, use a 15SQ045. As shown in the video, using a lower forward voltage diode DOES help.
@@electronicsNmore most of the panels come with the best diode. Not seen any with the diode with the .6 volt drop. There may be some but I haven't seen them. You can put 2 of the diodes parallel with heat sink on bigger panels. The trouble is that parallel diodes is that they are not equal and one with do more than the other. They may be near but there are some difference in them and one is going to handle more than the other.
@@donaldsmith3048 Incorrect. Most panels don't, UNLESS you spend a lot of money on the panel.
Do solar panels actualy needs blocking didode?
Yes.
In all common usages, yes. Some charge controllers have it built in though.
Yeah, and alot if charge controllers don't even require a diode in the panels, so it basically goes through two doides with their losses!
I've seen diodes in charge controllers with .45 forward voltage. Not good.
Please can somebody help me : i have a 12/15 volt 222 mh portable Generator and i have a foldable solar panel 22 cm / 70 cm long ,but have just 5 volt, how can i mach this two togeder . Somehow to hok up this 12 volt portable generator with , the 5 volt solar panel
You'd need a very powerful 5V panel, and a DC step up(Boost) converter to around 15V.
@@electronicsNmore thank you very much for the quik anser , my foldable solar panel is 5V 14W and 2,33A , 65 cm Long and 23 cm brite , you thynk it will work , i allready buyit , dont buder me if is charging slow
I didn't even knew that there is a rectifier diode in series.
I guess, it's not needed for grid tie.
Wouldn't it reduce the power sold to grid if you have some shading happening?
Thanks 👍
You're welcome. Be sure to share. Thank you
If you want maximum efficiency out of your solar panel here is some advice. Since AC is 30% inefficient because you need 169 volts AC to have an effective 120 AC RMS value you are better off just leaving it at DC. You'll save 30% plus the heat lost converting and rectifying DC to AC another 20% in power. You'll also save in power converting that AC current back to DC because your TV, your inverter fridge, your LED light bulbs and most of your appliances work with DC and that is another 15% savings in power just on converting that AC back to DC. That's a whopping 65% saving just by leaving that DC current at DC. You will have to do some home work in regulating the power in each home appliance ( like each LED bulb works with 3.3 volts DC and your TV works with 19.5 volts DC and each most be regulated). But once you've changed everything to accept DC current in your home you will have no need for AC voltage and that panel will work much more efficient.
Sorry, I'm z little lost. Could you add a schematic diagram on what you were doing?
www.electronics-tutorials.ws/wp-content/uploads/2018/05/articles-solar3.gif
@@electronicsNmore I guess the diodes you tested were depicted as the green diodes. I am unable to read the writings on the diagram. I suspect the resolution is a little. Thank you very much. God bless you.
so why do they use diodes that are less than optimal? There must be a reason.. any idea?
Actually after looking at your diagram.. I figure the blocking diodes higher forward voltage ensures that shading causes the bypass diode to be used and not drag down the whole system. I could be wrong but it seems to me, it would work that way
@@jackob9658 No. The blocking diode only has one purpose, to prevent current from flowing to the panels from the battery.
Probably cost.
What are the diode numbers ? Can't understand what your saying.
I thought I spoke very clearly. The lowest forward voltage diode tested, was an SB1040.
@@electronicsNmore Thank You. You may have spoken just fine. The Audio Quality is lacking here.
Good information and well presented. The only complaint I have is calling photo voltaic cells ie pvc ,"solar panels". I know everybody calls them "solar panels" but what do we call real "solar panels"? PVC's are around 21% efficient while "solar panels" are around 97% efficient. So real solar panels are better for getting a hot water supply and PVC's if you want electricity. More voltage drop in series I guess with the worst rectifying diode. Nice observation on your part.
The word photovoltaic doesn't mean PVC. The word refers to all panels. Look up the definition online. Thanks for watching
@@electronicsNmore OK thanks for the information. How do people generally distinguish between the diode based units and the ones using heated water? The same language is applied to "bullets and cartridges" if you see what I mean. In the UK "bullets" get called "bullet heads" to try to distinguish them from "bullets" meaning "cartridges". How do we distinguish between pvc's and water heated via solar devices?
@@Primer595 Here in Greece the solar water heating panels are "solar panel" and the electric ones are "fotovoltaiko panel".
@@manolisgledsodakis873 Thanks. Yes that was my understanding . The photovoltaic ones are only 21% efficient although studies in Scotland are getting nearer to 30 % or more.Solar panels are very efficient ,in the high 90's I believe.You have plenty of sun in Greece!
i replaced MC4 with better connectors upped output 20+ %
You must've had a poorly made MC4 connector that was high resistance.
Hi...
What did u use instead..?
But can i use just 1 diode if i have two panels?
You could, but it's not recommended.
@@electronicsNmore Alright.. I did buy some "cheap" panels and due to my location i dont get much of the better sunlight.. So i did try with a booster and this gave me abit better flow could say when it comes to AH.. At least thats what the watt meter shows..
ya i didnt get the number of that last diode
The best one I used, was a sb1040.
In my view this diode does not come into effect when solar panel is working, check the rectifier Anode & Cathode connection to the solar panel, why would it be named a blocking diode
You're referring to the "Bypass Diodes". They aren't used unless the panel becomes shaded.
Does one volt make a difference
It sure does. A bigger voltage drop = lower current output from the panel.
My 250W panels can produce 10A.
1V x10A= 10W per module.
That's a 4% loss.
Edit: That's the short circuit current.
Working current is around 6.7A
There is another option: The ideal diode. Active electronics that simulate the properties of an ideal, zero-drop diode. It gives you a small increase in efficiency beyond even the best conventional diodes. Basically just a MOSFET and some transistor trickery that turns it on when current is flowing in the right direction.
You'd need a power supply coming from the battery being charged to operate the circuit.
@@electronicsNmore Quite right - that is how they work. The current consumed by a well-designed ideal diode circuit is miniscule though - well below one milliamp.
I wonder what the RF interference will be from the solar panels by changing out these diodes? Some solar panels are completely unusable around our radio equipment while others are "quiet".
Absolutely none. Solar panels themselves are completely free of anything RF - they produce zero radio emissions. What you are picking up is more likely to be noise from the charge controller. Those do produce RF, and the wires back to the panels make excellent antennas to transmit it.
A perfect way to void your warranty and possibly cause you more problems than it's worth. Cool educational video though.
Nothing to void. You have every right to use whatever diode you feel like using. Thanks for watching
@Panthera Incorrect.
@Panthera what kind of BS science are you talking about? do you know anything about electronics? just mouthing off about "ageing" ... stop putting your shoe in your mouth.. your ignorance is clearly obvious.
Why not remove the diodes completely?
Because a solar panel in darkness becomes a diode. One in the wrong orientation. It'd cause the battery to discharge through the panel. It actually functions as a crude IR-LED, radiating all your precious energy away and potentially damaging the panel. The blocking diode prevents that.
@@vylbird8014 Thanks for the response. The reason I ask is the panel seems to work fine even though I removed both diodes, probably because I disconnect it at night. Now I will have to buy an IR detector.
Do you have best alternatives, captain obvious?
Pinned comment.......
Wouldn't a germanium diode be better? They only drop .2 volts. There are millions of NOS Russian Germanium diodes and transistors.
They wouldn't handle the current, though.
The typical PV module voltage is roughly 40 volts, with typical strings of 15 modules being just under 600 volts. How is a ¼ volt difference between diods is supposed to make a noticeable difference?
Absolutely. A higher voltage drop, results in reduced current output. The problem is more noticeable as the level of current RISES. What I show in this video applies mostly to single solar panels or smaller systems.
The voltage drop across the diode has very little bearing on the power output from a solar panel, your method of measuring solar power is very flawed, maximum power out from a 12V panel is when the panel voltage is around 17V, hence the reason for MPPT.
Incorrect. Not everyone is using a MPPT! Nothing flawed about my video, only some viewer comments are flawed.
they are not block diodes, they are bypass diodes. they only activate when the cells being bypassed are in shade.
it seems to me you are giving out miss information
How about watching the video before posting a foolish comment. Unreal.
@@electronicsNmore
have a look where your finger points to in the icon. that's the unreality of the matter
@@ursodermatt8809 Yes, clearly you haven't seen too many panels. :-) Some have bypass and blocking diodes in that box.
@@electronicsNmore
i don't know what kind of panels you have in your neck of the woods, but i certainly have never come across a panel with built in blocking diodes.
besides mist bypassing diodes are cast into a kind of gunk to water seal them.
i still suspect you were mixing up bypassing and blocking diodes. just my guess.
Diodes can be used for many different applications.. yes solar panels will drain your batteries if a diode is not in place... a diode will only let voltage/amp travel one way!!! or to reduce 120 volts to 12 volt per say...
If they are in fact blocking diodes, I think you should put up a video, or at least diagrams to explain the difference between blocking and bipass! Your explanation in the text at top of the video is confusing. How about a video showing the removal of the diode from the actual PV panel with efficiency tests before and after?! Showing a light bulb is hardly evidence for anything.
The majority of viewers fully understood the video and appreciated it. The light bulb/diode demonstration was more than enough evidence. Many panels use a 10a10 blocking diode which is much higher than a 10SQ045, etc. No comparison.
Or it would be easier to ask where u live to buy a home near you to call yiu for help. Lol but maybe it's a bad idea since the housing market is unstable? Lol
Don't buy anything right now. :-)
What do you try to achieve here?You are just measuring the voltage drop in your setup.
You will NOT increase any power !
The diode you are referring is not a solar blocking diode but for other purposes.
What a misleading video and you even got 32k views.
Another Dimwit. Sadly on YT I have to put up with a number of them on a daily basis.
You never showed how to increase it.
I sure did, you saw the last diode being tested. I couldn't have explained things any better.
A higher load current will NOT increase the foreward voltage drop any appreciable amount. The foreward drop is a characteristic of all semiconductors and is essentially a set voltage. This guy needs to take some electronics classes.
Misread your wise @ss post. I never said it would increase the forward voltage of the diode, it increases the voltage drop at the load. Get your hearing checked.
In fact, although the semiconductor forward voltage drop does level out beyond the "knee" voltage, it is never exactly level. The voltage drop continues to increase very slightly with increase in current. Look at the manufacturer's graph for any diode and you'll see this. As to whether it's 'an appreciable amount' depends on the application.
as soon as i got to 2:43 in the video i lost trust in this . ANY one else see what he did
Wow, you've got issues. LOL Find another channel to watch.
This is nonsense, I'm afraid. the diodes in a solar panel are bypass diodes, the current produced by the solar panels does NOT pass through the diodes in normal circumstances.
Incorrect. Only some viewer comments are nonsense. The video was primarily about blocking diodes, but if your solar array is subjected to partial shading by trees early or later in the day, you'd be a fool to not swap out the bypass diodes for low forward voltage/low loss diodes. Ive seen both bypass and blocking diodes installed under that cover.
So you’re smarter than a billion dollar solar company ?
If they use 10a10 diodes, or other high forward voltage diodes, yes.
Clickbait Hokum. Can't you come up with anything useful to post. You just mislead the solar muggles.