₦airaland Forum

bassdow:
if you understood the meaning of that BI , then you would know the answer to your question is a Capital NO

Naturally, I always often discourage clients going for such. The extra cost is never worth it coupled with the fact most times, we mount flat on roof top / car port

Just buy yourself the regular solar panels, go for MONO and be done with it

Most Bifacials with higher wattage are cheaper than front alone panels. A bifacial of 610w is rated with the front and not the back. With the back you can get 30% above rated capacity. So you can use them on roofs if you want but you'll get more if used on a reflective place that gives the under sun light

ask4bk:
8 x ZN 605W Bifacial N-Type Solar Panel (fouani or any other 555-590w) - 8 x 110,000 = 880,000
Growatt 6kW inverter - 600k
10kwh from brands that have confirm 10kwh is around 2.1m like Firman. But you add 200k you'll get 16kwh of confirm quality batteries from Valto 2.3m. Or you get 15kwh same quality from Mrreed for 1.6m only that his has no communication ports and DC breaker, which are not necessary features and cheaper at 1.6m over that of Valto that is 600k costlier with breaker and communication ports. 😭😭. I'm sure you are asking same questions with me about why he can't reduce price too. Only that Mrreed often runs out of cells cuz of people rushing him.

Total cost = 3.1m to 3.8m.

Make your choice

to capture both market segments, na to have 2 sections so you're able to accommodate both categories of customers. No talk say na Me tell you Oooo

ask4bk:
Most Bifacials with higher wattage are cheaper than front alone panels. A bifacial of 610w is rated with the front and not the back. With the back you can get 30% above rated capacity. So you can use them on roofs if you want but you'll get more if used on a reflective place that gives the under sun light

That 30% is often very rare and requires utmost optimum conditions. It's mostly theory BUT a customer is after real world values. A more realistic figure ought be around 5% to 15% best case scenario. Anything extra is just extra and should be seen as temporary.

Major issue is, a lot of people have their bi-Facial solar panels installed just like regular Solar panels. Doing that is just unnecessary waste of resources.

For those saying it's cheaper or same price as single faced Solar panel, na Lie Ooo. Even if dem subsidize the price on the receipt (to encourage more people to buy them), there are other costs and trade-offs.

For potential buyers, except you willing to meet the minimum requirements, you better off increasing your panel count, except of course space is an issue. A lot of roofs (if considering the roof) these days are not really that strong + how many of us even have reflective roofs (actually it must not be reflective) + for safety reasons, you need account for thicker cables, fuses, etc; + ...

bassdow:
That 30% is often very rare and requires utmost optimum conditions. It's mostly theory BUT a customer is after real world values. A more realistic figure ought be around 5% to 15% best case scenario. Anything extra is just extra and should be seen as temporary.

Major issue is, a lot of people have their bi-Facial solar panels installed just like regular Solar panels. Doing that is just unnecessary waste of resources.

For those saying it's cheaper or same price as single faced Solar panel, na Lie Ooo. Even if dem subsidize the price on the receipt (to encourage more people to buy them), there are other costs and trade-offs.

For potential buyers, except you willing to meet the minimum requirements, you better off increasing your panel count, except of course space is an issue. A lot of roofs (if considering the roof) these days are not really that strong + how many of us even have reflective roofs (actually it must not be reflective) + for safety reasons, you need account for thicker cables, fuses, etc; + ...

For scientific purpose, can you cite the other costs and tradeoffs?
Cite with proof and maybe you'll help this community to be well informed.

Why is ZN bifacial 610w 108k but Jinko 590w is 125k apart from the fact that jinko is the bigger company and ZN and JA are trying to penetrate the market? Tell us the tradeoffs bifacials have coz you seem to know something we don't know.
Let them be scientific and not speculations

ask4bk:
For scientific purpose, can you cite the other costs and tradeoffs?
Cite with proof and maybe you'll help this community to be well informed.

Why is ZN bifacial 610w 108k but Jinko 590w is 125k apart from the fact that jinko is the bigger company and ZN and JA are trying to penetrate the market? Tell us the tradeoffs bifacials have coz you seem to know something we don't know.
Let them be scientific and not speculations

How many verifiable proofs you drop. My own na to respond to, so if you drop your proof, then I go respond. Merely looking at your own comment, answers are there already.

You're Dropping, I'm Responding, Equation go balance

bassdow:
That 30% is often very rare and requires utmost optimum conditions. It's mostly theory BUT a customer is after real world values. A more realistic figure ought be around 5% to 15% best case scenario. Anything extra is just extra and should be seen as temporary.

Major issue is, a lot of people have their bi-Facial solar panels installed just like regular Solar panels. Doing that is just unnecessary waste of resources.

For those saying it's cheaper or same price as single faced Solar panel, na Lie Ooo. Even if dem subsidize the price on the receipt (to encourage more people to buy them), there are other costs and trade-offs.

For potential buyers, except you willing to meet the minimum requirements, you better off increasing your panel count, except of course space is an issue. A lot of roofs (if considering the roof) these days are not really that strong + how many of us even have reflective roofs (actually it must not be reflective) + for safety reasons, you need account for thicker cables, fuses, etc; + ...

Your response sounds like google search response I got. But still I see no tradeoff.

Wire size: same for both to meet 2% voltage drop. Current carrying capacity for both falls within current carrying capacity for 2.5mm2 wire. The extra requirement of voltage drop may require using 4mm2 or more depending on the distance and the calculation will be similar for both.

Fuse/breaker: same price and reason is same as above. The protection is for the wire and should be below maximum series fuse specified for the panel.

Roof: In Nigeria, our roof truss is design to distribute load to larger area. The difference in weight is within 1-5kg per panel and that's not much to give much difference. The extra load should be beneficial in my opinion.

Cost: Fouani shows both to be at par.

Durability: bifacial win. Extra glass layer gives it more load bearing capacity to withstand storm.

Need for Reflective roof: Positive feedback and comparative data from users suggest that there's still little gain even when placed directly on roof. Even if there was to be no gain, the extra rigidity from the double panel glass is added advantage for same cost.

bassdow:
How many verifiable proofs you drop. My own na to respond to, so if you drop your proof, then I go respond. Merely looking at your own comment, answers are there already.

You're Dropping, I'm Responding, Equation go balance

Yes, i dropped that answer coz we all know that those new brands reduce price. That point has to be taken off so that you can give us those other things that you know. You made it sound as if there are quality issues or hidden "tradeoffs" that you know and we don't know. We want you to assist us.

mank1234:
Your response sounds like google search response I got. But still I see no tradeoff.

Wire size: same for both to meet 2% voltage drop. Current carrying capacity for both falls within current carrying capacity for 2.5mm2 wire. The extra requirement of voltage drop may require using 4mm2 or more depending on the distance and the calculation will be similar for both.

Fuse/breaker: same price and reason is same as above. The protection is for the wire and should be below maximum series fuse specified for the panel.

Roof: In Nigeria, our roof truss is design to distribute load to larger area. The difference in weight is within 1-5kg per panel and that's not much to give much difference. The extra load should be beneficial in my opinion.

Cost: Fouani shows both to be at par.

Durability: bifacial win. Extra glass layer gives it more load bearing capacity to withstand storm.

Need for Reflective roof: Positive feedback and comparative data from users suggest that there's still little gain even when placed directly on roof. Even if there was to be no gain, the extra rigidity from the double panel glass is added advantage for same cost.

if you talk say I use google, who Am I to argue with you at a time I'm yet to chop.
Funny enough, na your own response gan gan resemble wetin dem copy. Either way, we move

Hi,

The Chinese and their unscrupulous practices will never seize to amaze me.

It has been established that Cworth batteries are overrated and are actually made with cells of 20 percent lower Ah. They then deceptively claim 80 percent DOD and that the 20 percent is ‘locked’ somewhere by the BMS. This is obviously a lie because the 80 percent the user is getting is at voltages of 42 - 44v, so nothing is obviously left in those cells.

Now, a new discovery. Allegedly, their 500w panels are actually 370w panels, they are just designed to mimic the dimensions and cell counts of 500w but you will never get the Vmp rating of their panels. It’s quite a shame that they sell these panels for the same price as legitimate 500w panels from reputable manufacturers.

I feel victim for this since I used their panels on one of my strings. You can imagine the unnecessary weight(kg) and space this 370w is taking on my roof, space that a 500w panel should take. In other words, I’m getting a horrible Watts per square meter where these panels are mounted.

It such a shame that this kind of practice is very common in China.

Please stick to reputable brands because when you use overrated products, it makes the payback/break-even time of your solar installation to be longer.

Cheers.

ask4bk:
Yes, i dropped that answer coz we all know that those new brands reduce price. That point has to be taken off so that you can give us those other things that you know. You made it sound as if there are quality issues or hidden "tradeoffs" that you know and we don't know. We want you to assist us.

you guys need understand something, I no get time to dey do online searches just because I want to follow person talk. I don talk wetin I know. If you come talk something BUT only focus on the good (sometimes questionable) sides, and do like say e no get bad sides, I go tackle una gain. If una like, use 5 multiple accounts, You no fit shame person wey no get shame.

Una don succeed to make everyOne to dey struggle to find new solar panels when used ones dey. e enever do, na to begin suggest and push for Bi-Facial panels, with no regards as to whether potential customers would be needing such or not; e no concern una so long money dey enter una pocket. Later na una go still yan say Tinubu do this and that like say if una get 5% opportunity, una no go do worse.

Oga don rush quote 30%; some traders go even try convince you say both sides dey give equal harvest hence if one side break, you fit turn to the other side. me ma kukuma be M U M U + Confused Mutula by default, as you dey try confuse and deceive me, na so i go dey look, hardly can you tell when I'm confused and when I'm not.

At end of the day, You win, the Customers loose. OverTime, said Customers loose interest and everyOne groans and put the blame on China and FAKEs

GloryJoyeux:
Hi,

The Chinese and their unscrupulous practices will never seize to amaze me.

It has been established that Cworth batteries are overrated and are actually made with cells of 20 percent lower Ah. They then deceptively claim 80 percent DOD and that the 20 percent is ‘locked’ somewhere by the BMS. This is obviously a lie because the 80 percent the user is getting is at voltages of 42 - 44v, so nothing is obviously left in those cells.

Now, a new discovery. Allegedly, their 500w panels are actually 370w panels, they are just designed to mimic the dimensions and cell counts of 500w but you will never get the Vmp rating of their panels. It’s quite a shame that they sell these panels for the same price as legitimate 500w panels from reputable manufacturers.

I feel victim for this since I used their panels on one of my strings. You can imagine the unnecessary weight(kg) and space this 370w is taking on my roof, space that a 500w panel should take. In other words, I’m getting a horrible Watts per square meter where these panels are mounted.

It such a shame that this kind of practice is very common in China.

Please stick to reputable brands because when you use overrated products, it makes the payback/break-even time of your solar installation to be longer.

Cheers.

if you recall on numerous occasions, I often suggest 300-watts Solar panels and often nothing higher EXCEPT I am the one doing the selection AND when someOne questioned why I said so, I told them it's because when they wanna deceive you, it's mostly those 300watts Solar panels they use.
in other words, you're more likely to get accurate wattage if you don't go beyond 300watts. Even 300watts could be sold as 350watts sef.

Don't also forget, I have said it also that a lot of Brand New solar panels ain't brand new.

Now they pushing for Bi-Facial. Like common sense doesn't tell us that all things equal, Bi-Facial ought to be more costly than single faced Solar panel BUT because they have done maGoMaGo somewhere, they're comfortable giving the illusion of cheap or same price on receipt.

if only a lot of customers have opportunity to air their voice.

Hardly would you notice anyOne marketing used Solar panel in here. All na brand new, and should be gotten from so so so stores so as not to be cheated. Una forget say no be everybody be sheep.

GloryJoyeux:
Hi,

The Chinese and their unscrupulous practices will never seize to amaze me.

It has been established that Cworth batteries are overrated and are actually made with cells of 20 percent lower Ah. They then deceptively claim 80 percent DOD and that the 20 percent is ‘locked’ somewhere by the BMS. This is obviously a lie because the 80 percent the user is getting is at voltages of 42 - 44v, so nothing is obviously left in those cells.

Now, a new discovery. Allegedly, their 500w panels are actually 370w panels, they are just designed to mimic the dimensions and cell counts of 500w but you will never get the Vmp rating of their panels. It’s quite a shame that they sell these panels for the same price as legitimate 500w panels from reputable manufacturers.

I feel victim for this since I used their panels on one of my strings. You can imagine the unnecessary weight(kg) and space this 370w is taking on my roof, space that a 500w panel should take. In other words, I’m getting a horrible Watts per square meter where these panels are mounted.

It such a shame that this kind of practice is very common in China.

Please stick to reputable brands because when you use overrated products, it makes the payback/break-even time of your solar installation to be longer.

Cheers.

I learnt my lesson with Twintech. One thing these sellers will never do for you is to test the panels right there. If you ask them to test it, they will say “We don’t have a multimeter”. To beat them to this game, simply take your multimeter along with you to their shop on a sunny afternoon. I got this advise from this same thread.

Modified: not Africell but Twintech Solar Panel.

bassdow:
you guys need understand something, I no get time to dey do online searches just because I want to follow person talk. I don talk wetin I know. If you come talk something BUT only focus on the good (sometimes questionable) sides, and do like say e no get bad sides, I go tackle una gain. If una like, use 5 multiple accounts, You no fit shame person wey no get shame.

Una don succeed to make everyOne to dey struggle to find new solar panels when used ones dey. e enever do, na to begin suggest and push for Bi-Facial panels, with no regards as to whether potential customers would be needing such or not; e no concern una so long money dey enter una pocket. Later na una go still yan say Tinubu do this and that like say if una get 5% opportunity, una no go do worse.

Oga don rush quote 30%; some traders go even try convince you say both sides dey give equal harvest hence if one side break, you fit turn to the other side. me ma kukuma be M U M U + Confused Mutula by default, as you dey try confuse and deceive me, na so i go dey look, hardly can you tell when I'm confused and when I'm not.

At end of the day, You win, the Customers loose. OverTime, said Customers loose interest and everyOne groans and put the blame on China and FAKEs

"TIME TO DEY DO ONLINE RESEARCH"... Not surprised. That's exactly what i expected you to do. Online research, to get the tradeoffs. I thought you had practical verifiable experience, but of course you no get.

I'll advice you just keep quiet on such issues or give your opinions as "your opinions" and not as facts.
You then went on writing a long litany of emotionalism which works on no one here.
Talk with facts! Here is a science lab - not ted talk space

BigDickProblems:
I learnt my lesson with Twintech. One thing these sellers will never do for you is to test the panels right there. If you ask them to test it, they will say “We don’t have a multimeter”. To beat them to this game, simply take your multimeter along with you to their shop on a sunny afternoon. I got this advise from this same thread.

Modified: not Africell but Twintech Solar Panel.

even if you got your own MultiMeter, I always go with Multi-Meter, Ammeter, and a Solar panel tester. Funny thing is, you really don't need all those BUT for those who don't have enough knowledge, they can't go wrong with having at least 2 of those.
Another is to watch out for bad / discolored cells.

Another is, when buying many Solar panels, ensure you test everything, don't allow them to make you comfortable with softDrink and allow the boys work for you. Dem go just mix the Good, the Bad, and the Ugly; all while calling you Oga or Madam.

Another thing is, a lot of times, it's actually much cheaper BUYing used Solar panels, than the New ones. yea we know they have degraded BUT a lot of times, depending on your source, it doesn't matter. In fact there are times USEd ones are almost 100% as Good as NEW

ask4bk:
"TIME TO DEY DO ONLINE RESEARCH"... Not surprised. That's exactly what i expected you to do. Online research, to get the tradeoffs. I thought you had practical verifiable experience, but of course you no get.

I'll advice you just keep quiet on such issues or give your opinions as "your opinions" and not as facts.
You then went on writing a long litany of emotionalism which works on no one here.
Talk with facts! Here is a science lab - not ted talk space

English ain't hard na

ask4bk:
8 x ZN 605W Bifacial N-Type Solar Panel (fouani or any other 555-590w) - 8 x 110,000 = 880,000
Growatt 6kW inverter - 600k
10kwh from brands that have confirm 10kwh is around 2.1m like Firman. But you add 200k you'll get 16kwh of confirm quality batteries from Valto 2.3m. Or you get 15kwh same quality from Mrreed for 1.6m only that his has no communication ports and DC breaker, which are not necessary features and cheaper at 1.6m over that of Valto that is 600k costlier with breaker and communication ports. 😭😭. I'm sure you are asking same questions with me about why he can't reduce price too. Only that Mrreed often runs out of cells cuz of people rushing him.

Total cost = 3.1m to 3.8m.

Make your choice

Thank you so much for the break down my Oga. I go come back if I have more question.

Any need adding a TV guard to my wall socket, even though I'm totally offgrid

Na why we dey Test oo,
I tested panels with Amazing results, many came and said I was making things up, I doctored my numbers.

They are pushing narrative of NOCT rating, just like 80% DOD on battery

But for the Bifacial thing, Good complete Bifacial panel is way better than mono in performance.

I will be testing Jinko 590w Mono Vs ZN shine 590 Bifacial in a real word scenario. Side by side on the roof.

Dam5reey1:
Na why we dey Test oo,
I tested panels with Amazing results, many came and said I was making things up, I doctored my numbers.

They are pushing narrative of NOCT rating, just like 80% DOD on battery

But for the Bifacial thing, Good complete Bifacial panel is way better than mono in performance.

I will be tested Jinko 590w Mono Vs ZN shine 590 Bifacial in a real word scenario. Side by side on the roof.

Do a video of your results.

Dam5reey1:
Na why we dey Test oo,
I tested panels with Amazing results, many came and said I was making things up, I doctored my numbers.

They are pushing narrative of NOCT rating, just like 80% DOD on battery

But for the Bifacial thing, Good complete Bifacial panel is way better than mono in performance.

I will be tested Jinko 590w Mono Vs ZN shine 590 Bifacial in a real word scenario. Side by side on the roof.

you already used a clause there "Good Complete" but that's not all, if you buy Bi-Facial solar panel and install it wrongly, then you just using Bi-Facial panel BUT would get be getting Single faced performance all things equal.
What lot of people who use Bi-Facial solar panels don't know all they doing is beautifying their roofs, that's apart from the added weight. They need not even use extra fuses or thicker cables sef because said Solar panels wouldn't utilize the other portion which best scenario is only about 5 to 20% to begin with.
Mind you, sellers also would make you believe both sides gives same reading hence even if you mount it like normal solar panel and one side breaks, you could always turn the other side.

If they had just advertised or made a suggestion and listed both it's strong and weak points, I for no even stress myself BUT they come, praise what benefits them, then trash talk everything else

ask4bk:
Do a video of your results.

...and what makes you think even Videos can't be doctored ?

ask4bk:
"TIME TO DEY DO ONLINE RESEARCH"... Not surprised. That's exactly what i expected you to do. Online research, to get the tradeoffs. I thought you had practical verifiable experience, but of course you no get.

I'll advice you just keep quiet on such issues or give your opinions as "your opinions" and not as facts.
You then went on writing a long litany of emotionalism which works on no one here.
Talk with facts! Here is a science lab - not ted talk space

so as I no come act matured enough to keep mute, you come kukuma tell me.
Why not try ignoring me, maybe, just mayBe, I would get tired.

e funny say una dey talk without viable evidence, BUT expect me to bring evidence. MayBe you haven't observed I don't share pictures or videos. Those ain't my line of work hence no get such time.

Una wey dey quote figures, where una evidence. Even manufactures of the things una dey promote go shock sometimes seeing the confidence and figures una dey quote

bassdow:
...and what makes you think even Videos can't be doctored ?

You are too pessimistic and closed minded.... Be open to real world facts and drop your biases for a moment....

Let him drop the video first, then you pick valid holes in whatever is presented...

Or better still, you present your own counter video whether it is doctored or not for others to also peer review.

jmaine:
You are too pessimistic and closed minded.... Be open to real world facts and drop your biases for a moment....

Let him drop the video first, then you pick valid holes in whatever is presented...

Or better still, you present your own counter video whether it is doctored or not for others to also peer review.

eh yaaah but if having a CLOSEd mind keeps me safe from FOXes and HYENAs, I would gladly close it more.

Mind you, a lot of una be like Tianshi, GNLD, FLP, TASLY, etc; marketers who turned doctors just so they could feed. Unlike the likes of Mua that didn't go into it just to earn a living. Mind you, that I'm in computing field, doesn't mean it's all the practical knowledge I got. if to say country balance, I for dey electronics field by default.

Now imagine person wey at a young age, already played and built lots of pet projects and repaired and scattered things, coming to do Solar things, make your type come dey quote fancy words up and down.

A lot of you guys are nothing BUT hustlers. Na reason why the moment you catch a customer, you wanna milk him/her as much as possible. God forbid you run into a client who knows what they want, you...

jmaine:
You are too pessimistic and closed minded.... Be open to real world facts and drop your biases for a moment....

Let him drop the video first, then you pick valid holes in whatever is presented...

Or better still, you present your own counter video whether it is doctored or not for others to also peer review.

My own work na to find and point out faults and Lies in speeches, not to manufacture TRUTHs and Evidence for things that were intentionally SKIPed unto say e no favor una.

Luck wey una get be say Solar matter na side Hustle for me. And I no get time to turn Content Creator (CC) else na to begin flood here with high quality, fairly used Solar panels, same wey full market.

bassdow:
eh yaaah but if having a CLOSEd mind keeps me safe from FOXes and HYENAs, I would gladly close it more.

Mind you, a lot of una be like Tianshi, GNLD, FLP, TASLY, etc; marketers who turned doctors just so they could feed. Unlike the likes of Mua that didn't go into it just to earn a living. Mind you, that I'm in computing field, doesn't mean it's all the practical knowledge I got. if to say country balance, I for dey electronics field by default.

Now imagine person wey at a young age, already played and built lots of pet projects and repaired and scattered things, coming to do Solar things, make your type come dey quote fancy words up and down.

A lot of you guys are nothing BUT hustlers. Na reason why the moment you catch a customer, you wanna milk him/her as much as possible. God forbid you run into a client who knows what they want, you...

I am scientist, and in science we take experiment serious and we take nothing on face value...

So, if someone is willing to put in the work and publish his/her findings. Then it behoves on all with intellect to review whatever he/she has done and critique when necessary...

You can't be an armed chair critic who parrots opinions without any superior argument premised on facts or data.

I am not a marketer of any sort. However, I appreciate the alternate views we all share here, then personally curate what is valid or not after personal research

Don't be too averse to new findings.... It's not a healthy hill to die on... Cheers...

jmaine:
I am scientist, and in science we take experiment serious and we take nothing on face value...

So, if someone is willing to put in the work and publish his/her findings. Then it behoves on all with intellect to review whatever he/she has done and critique when necessary...

You can't be an armed chair critic who parrots opinions without any superior argument premised on facts or data.

I am not a marketer of any sort. However, I appreciate the alternate views we all share here, then personally curate what is valid or not after personal research

Don't be too averse to new findings.... It's not a healthy hill to die on... Cheers...

yea
it's a faceLess forum, anyOne can claim anything. Me sef na Donald Trump and my papa na China's President while my Uncle na Huawei CEO; mind you, I am elonMusk. Oh I forget I am already Donald trump but no wahala, na double personality dey worry me

Oh dear,

It has now become more childish than should be.

Guys, unhealthy response begets another.

May we change the sub-topic.

IS THE WEATHER TREATING EVERYONE'S DAILY PANEL YIELD NEGATIVELY (POOR YIELD) LIKE IT'S HAPPENING IN MY SOUTHERN VISCINITY IN THE PAST 3DAYS?