₦airaland Forum

CuteMaro:
All surfaces reflect light, all. Some more than others.

The degree of reflection has to do with the material, angle and colour of such surface.

People with real world use are telling you that there is more advantage to using bifacial, even while mounted on a roof. I have seen Dam5rey's test, the other person also mentioned about 10% more yield than rated capacity from his own experience. The correct thing should be you doing your own research instead of holding onto an opinion based on belief and no empirical facts.

This post is for you and bassdow. Normally bassdow has a personal vendetta against newer technologies lol

Never said you can't mount on a roof and still get good harvest from the other side BUT issue is, you guys never point out it's got to be properly mounted in a certain way which increases it's cost both for mounting accessories, fuses, bigger cables, installation fees, etc. of course since it's often heavier, the roof (or anywhere it's being mounted) need be able to cater for such extra weight.

BUT you guys just IGNOREs all those and just focus on what favors you guys.

Mind you, a lot of Cabals in here, have alternate accounts AND a lot of Innocent people are unAware of such hence when they read from 8 people all sharing similar views, they conclude they're right.

Another thing is - We seem to have completely forgotten there's market for USEd Solar panels. Yea You could install used Solar panels and see no visible difference at all.

BUT since it doesn't move the ministry of those at the top, it receives no mention and if you dare bring it up long enough, they would try silence it.

no wonder the major Solar companies and outlets have representatives in here. Don't ask for proof as I got none BUT we still know.

Let me not even begin to mention the fact that there are lots of USEd solar panels being marketed as New out there in places where you have been made to believe are trust worthy.

bassdow:
The things you just said are what I have been saying which they keep on evading. The extra costs go way beyond the numbers on purchase receipt for individual panels. One needs consider installation kits which differs from normal installation kits. I could even hang without installation KITs but can't do same for Bi-Facial solar panels.

What about fuses and cables, one got to factor in those also. Abi na the extra weight especially since nowAdays, most people are after spending more on expensive roofing sheets, than on the wood that holds same roof. Let's pretend to ignore other more technical specs.

Most Bi-facial solar panels you see installed, are rarely installed in the proper way; rather they install them just like regular Solar panels.

For the person who said He had to replace his BiFacial with regular solar panel, without changing accessories or cables, it's probably because it wasn't properly installed to begin with. For instance, all things equal, a 300watts Mono solar panel SHOULD NOT use same fuse or cable size as a 300watts Bi-facial solar panel

How many of them even use fuses sef. what they mostly do is just use a single circuit breaker and that's it.

when una meet una clients, una fit dey preach Heaven in Nigeria for them BUT in here, make we talk as weWe

Hmmm...
Explain the bolded. Stating fuse size in current that should be used in each case, assume Vmp of 30V and Voc of 35V.

racerve:
Still looking for this 🙏🏽

Fakeisfake

Obnoxious2001:
To save old ups setups.

There are drop in replacements for those small UPS now.

Trippledots:
There are drop in replacements for those small UPS now.

other than industrial UPS, have never really been a FAN of UPS due to their very low standBy time.
There popularity went down the moment market share for Desktops dropped

mank1234:
Hmmm...
Explain the bolded. Stating fuse size in current that should be used in each case, assume Vmp of 30V and Voc of 35V.

Bi-Facial solar panels are known to produce higher than regular solar panels though that number (based on online research) is less than 35% best scenario.

if a 350w non Bi-facial panel produces about 10a, a Bi-facial would give slightly higher than 12a best scenario at same voltage of course. The increase occurs on the Current, not Voltage and yea, speaking from experience.

Left to me, if space ain't an issue, I rather just go half cut and more panels BUT under ideal conditions, Bi-facial solar panels have an edge but...

bassdow:
You do know you really don't have to add the "lol" part right.

anyways, I have never had issues with newer technologies so long they fix more problems than they introduce BUT issue here, mostly from you guys is, you preach the GOOD, while completely ignoring or completely hiding the BAD part.

Theoretically, bi-Facial Solar panels are better BUT then, you can't just swap them with previous technology without a few considerations which automatically introduces costs.

For instance, they're heavier (currently own 2), they require extra specialized mounting accessories hence one need consider where they're mounting it - if on roof top, it's got to be strong enough and not negatively affect the roof or cause accidents thanks to Wind.
if you paying someone do installations, there's no way they collecting same fee.
how about fuses, cables, etc, you gotta put those also in consideration.

of course there are other tradeOffs but for now, let's ignore those.

Now sum all those downSides; compare it with how much harvest you would be getting at end of the day, then you begin to a sk yourself if it's really really worth it, especially for small scale setUps BUT that becomes a personal decision. Issue is when people now come online to paint a picture comparison of 1:1 perfectness with no downside.
A lot of people would just be buying bi-Facial, and end up using them as regular panels BUT with the extra nuisances e.g weight.

Some seller are even of the opinion that both sides gives same value hence should 1 side break, you could easily turn the other side. And mind you, a lot of people are sheeples. they just go with what they're told, never inquisitive enough; no wonder Religion keeps growing despite obviousness.

Like all things in life, there's always the PROs (Good) and CONs (Bad) side of things; when marketing or making suggestions, endeavor to point out both sides so intending users know what they getting into.

Same thing with Lithium based batteries - they come here to speak so so highly of Lithium batteries like it's got no bad side; then they also speak so so lowly of other alternatives like they got no good sides; all because selling Lithium based batteries to you would add more to their pockets. They've come up with ways to wipe and control the thinking of people so they're literally zombies and guess what, a lot of innocent ones help amplify their claims thinking they know what they're doing because they got evidence - data (fact Sheets and videos) made available by those with beneficial ties to said product / technology.

Once again, up till today, large companies such as Google, Microsoft, etc still use tape Drives and hard Disks even when SSDs now exists and prices steadily coming down.


When advertising or recommending a product, kindly state the Good and Bad sides and how they compare and contrast against previous technologies and see if I would challenge you guys.
We all can't be Matured and Sensible in a room else it gets boring. I'm willing to be and remain the Villain.

Na you be the installer for this video abi?

https://www.tiktok.com/video/7550617034250341638/

Edrizz:
Boss calm down now, no one is fighting with you n we are all trying to share knowledge here, meanwhile retract n retrieve ur fallacy that ALL surfaces reflect light, like does asbestos roofing n all dark pigmented roofing sheets also reflect light?. So please read n digest my comment above, I never said a properly installed bifacial isn't better than mono during energy harvest but my stand is that for a better result, it's best installed on the ground with a galvanised sheet placed at an angle underneath the mounting structure or on a shining roof but with a more sophisticated mounting racks for better result during harvest

@bolded. If they don't, then how does you eye see them? 👀

bassdow:
other than industrial UPS, have never really been a FAN of UPS due to their very low standBy time.
There popularity went down the moment market share for Desktops dropped

I mean there are drop replacement lithium batteries these days.

Tdoctor:
How Nairaland Solar FTA thread has helped me:

This may be a long post, but I want to thank everyone on this thread for their help. Many people read stuff here anonymously, believe me.

So let me start. I bought 12 panels from a dealer (supposedly 450W each; Afri-something panel). I was happy initially but started noticing that my batteries (lead acid - 8 x 220Ah) were not being fully charged. During installation, I asked the dealer if LFP or lead acid was better. He said LFP was better but far more expensive, only for me to come here and find out that, considering all variables, LFP is cheaper (but that is a story for another day), so let me continue my panel story.

After looking at the data, I found out that the supposed 450W x 12 panels never exceeded 2700W, even during the dry season. I was expecting about 4500W (I did not mind the panels not reaching their 100% rate which would be 5400W or so), but 2700W was too low for me. The charge controller (CC) was rated 45A, so I concluded the CC was reducing the panel output. The inverter system was 48V, so that could not be the problem.

Later, I got a 100A CC but the power still did not increase. I washed the panels - no increase. I brought an installer to check the connections - no increase. That's when I realized that I had been sold a substandard panel. I complained to the dealer, but he said nothing was wrong with the panels (what else would he say?).

I could not use those panels because their very presence began to irritate me. I offloaded them (at an honest rate) to someone else and came here. It was here that I found that panel sellers were not doing good things to people. However, on one of the threads, Fouani and Techland were mentioned as legit panel sellers. I went with Techland. I bought 12 x 485W Jinko panels for less than I bought the useless 450W panels. On second day of installation, I saw 4800W. I was happy.

Later, the panels brought down 6200W (about 517W per panel; more than 100% of the rated power). The panels still produce well and charge the batteries to full when the sun is good.

I am happy and sad at the same time. I wish I had come here earlier. The dealer wasted my time, money, and emotions. Even the charge controller, the dealer sold to me, I have offloaded it. Only the batteries remain, as they seem to be the most expensive part of the system to replace. Anyway, I am happy I did not buy LFP from the man because I could have been sold 5kwh as 15kwh.

Moral of the story.
> Before you spend a lot of money on anything. Do your OWN due diligence.
> Many sellers and installers just want to sell, and DO NOT care about your subsequent frustrations.
> DO NOT trust sellers who have not been recommended by MANY people.
> Poor installations may not only lead to financial loss, they could lead to death, because people who cut corners, cut corners in EVERYTHING.
> It is YOUR money. Do not let anyone cajole you into buying pain and loss.

God bless.

please what size of DC cable did you use for this setup. I also planning to change my rubbish panels to better ones. Also how can I get solar panels from techland

Trippledots:
@bolded. If they don't, then how does you eye see them? 👀

Ahahahahaha you don hold am for jugular with this question o.

Some people love argument, even when they are obviously wrong.

bassdow:
Never said you can't mount on a roof and still get good harvest from the other side BUT issue is, you guys never point out it's got to be properly mounted in a certain way which increases it's cost both for mounting accessories, fuses, bigger cables, installation fees, etc. of course since it's often heavier, the roof (or anywhere it's being mounted) need be able to cater for such extra weight.

BUT you guys just IGNOREs all those and just focus on what favors you guys.

Mind you, a lot of Cabals in here, have alternate accounts AND a lot of Innocent people are unAware of such hence when they read from 8 people all sharing similar views, they conclude they're right.

There are always downsides to every new technology launched till this present day, does that mean people shouldn't use them.

Cars gets involved in accidents every day, does that stop people from using cars?

We hear of plane crashes, do people still not fly on planes?

Even the internet you are currently on, has its own downsides but you still use it.

Your beloved monofacial panels has its own downsides too, if not manufacturers wouldn't think of advancing the technology behind it, there are already ongoing tests for Perovskite to be used in future generations of solar panels.

Trippledots:
I mean there are drop replacement lithium batteries these days.

of Course I know. Only stated major reason why their use has declined. even back in the days, I often used solar batteries on them as those few minutes the follow-come batteries dey give no be anything.

Emmyjames:
There are always downsides to every new technology launched till this present day, does that mean people shouldn't use them.

Cars gets involved in accidents every day, does that stop people from using cars?

We hear of plane crashes, do people still not fly on planes?

Even the internet you are currently on, has its own downsides but you still use it.

Your beloved monofacial panels has its own downsides too, if not manufacturers wouldn't think of advancing the technology behind it, there are already ongoing tests for Perovskite to be used in future generations of solar panels.

well it's no fault of mine when One decides to be intentionally ignorant.

yea we know Bi-facial got it's advantages BUT do not come in here telling us those extra ADVANTAGEs without equally telling us the disADVANTAGES to be aware of, especially when wrongly installed.

of course when you're a carpenter, and knows nothing else, everything would continue to need wood and nail even when it ought be concrete and iron.

Abegi Me never chop this morning so I no get strength follow una dey argue. mayBe later when I need deStress

To illustrate the point about batteries connected in parallel.

4 batteries. Felicity 200AH with ANT BMS. Tactel 300AH with JK-BMS. CATL (DIY) 280AH with JK-BMS. Valto 173AH with JBD BMS. Felicity and Valto are fully charged, 100% SOC while Tactel and CATL are still actively charging. Each of the batteries are doing their separate thing based on their SOC.

.

bassdow:
Bi-Facial solar panels are known to produce higher than regular solar panels though that number (based on online research) is less than 35% best scenario.

if a 350w non Bi-facial panel produces about 10a, a Bi-facial would give slightly higher than 12a best scenario at same voltage of course. The increase occurs on the Current, not Voltage and yea, speaking from experience.

Left to me, if space ain't an issue, I rather just go half cut and more panels BUT under ideal conditions, Bi-facial solar panels have an edge but...

So what wire size and what fuse size would you in each case? What would be the cost difference between the two?

Can you attach a picture of it please?

bassdow:
A voltage protector that even allows you set values is all you need.

Currently got a spare one sef BUT check market or ask in here, those selling should tell you.

Wouldn't be surprised the repairer didn't suggest that to you, if e no burn / spoil, na how e wan take chop

Can you show me a sample of what i should look for online?

favouredbymercy:
A voltage/current limiter AVR on the output side will serve this purpose. Just input the max current you want it to draw. Assuming your inverter output is 220v, with this your 600wax, max current draw should be set at 600/220 = ~2.7amp

JoeSef0:
Question:
My parents keeps burning and mistakenly overloading their small 1000w Famicare inverters.
It has gone for repair atleast 3 times this year already.
Is there a way i can connect a load breaker for like 500-600w that will trip off whenever something higher goes into it?

Why should a 1,000w inverter be limited to 600w?

The thing is vexing me

I bought a Souer 1,000w sachet inverter wey no fit carry 3 120w phone chargers at same time

JoeSef0:
Can you attach a picture of it please?

Here's an online picx https://pictures-nigeria.jijistatic.net/156281613_NjIwLTYxMi00ZGVlNGQwYWFj.webp

try putting it between your Inverter and the load (in this case changeOver switch of the house), then set the parameters

bassdow:
A voltage protector that even allows you set values is all you need.

Currently got a spare one sef BUT check market or ask in here, those selling should tell you.

Wouldn't be surprised the repairer didn't suggest that to you, if e no burn / spoil, na how e wan take chop

How does a voltage protector stop overload?

This one is not limited. I just made the 500w as an example.
One of my guy use the same inverter and i know he powers over 600w of appliances on the inverter. It's a bit rugged

oweniwe:
Why should a 1,000w inverter be limited to 600w?

The thing is vexing me

I bought a Souer 1,000w sachet inverter wey no fit carry 3 120w phone chargers at same time

Thanks

bassdow:
Here's an online picx https://pictures-nigeria.jijistatic.net/156281613_NjIwLTYxMi00ZGVlNGQwYWFj.webp

What could have made a Felicity 30amps MPPT comtroller to stop charging?

What could have damaged in it? And how much would it cost to repair? Where can I repair it other than Arena at Oshodi. At Arena Oshodi, there are just about 2 technicians that works on Charge Controllers which was surprising. The rest are just inverters, but just 2 are specifically into Charge controllers on the C2-line. They were calling outrageous amount of money because there are not many technicians there I believe.

One was telling me to fix it for 40k or I should sell it to him for 20k. I just hid my disappointment with him and asked him to couple it back, and I went back home jejely since WPM is still working fine. But I still need to get it repaired in case of any problems.

JoeSef0:
Thanks

This one you THANKing me, was expecting you show concern regarding @HeavenlyBang 's comment

BigDickProblems:
What could have made a Felicity 30amps MPPT comtroller to stop charging?

What could have damaged in it? And how much would it cost to repair? Where can I repair it other than Arena at Oshodi. At Arena Oshodi, there are just about 2 technicians that works on Charge Controllers which was surprising. The rest are just inverters, but just 2 are specifically into Charge controllers on the C2-line. They were calling outrageous amount of money because there are not many technicians there I believe.

One was telling me to fix it for 40k or I should sell it to him for 20k. I just hid my disappointment with him and asked him to couple it back, and I went back home jejely since WPM is still working fine. But I still need to get it repaired in case of any problems.

Then enter Alaba Market at Ojo. Dem plenty there BUT mind you, repairs ain't always successful Ooo. if you could locate their service center (don't have their address), mayBe better chances.

The person who tried making you sell to him is probably the one whose shop is not too inside, I think there's another inverter repairer also opposite him

HeavenlyBang:
How does a voltage protector stop overload?

Are you speaking going by the name I mentioned or you know about it ? Asking from the point of learning

Trippledots:
There are drop in replacements for those small UPS now.

Not small ones.

We have some industrial setups that Runs on 120v so using lead batteries is very advantageous for setup like that.

bassdow:
Then enter Alaba Market at Ojo. Dem plenty there BUT mind you, repairs ain't always successful Ooo. if you could locate their service center (don't have their address), mayBe better chances.

The person who tried making you sell to him is probably the one whose shop is not too inside, I think there's another inverter repairer also opposite him

I will check in with Alaba. Thanks.