Justice629:
Hopefully today marks the end of the gloomy season here in Calabar, It's been 2 hellish pv months.
Now time to enjoy the power of bifacial

End of gloomy season is probably in September. Lagos was hot about 4 days ago and I thought the sun was fully back but the next day it was back to square one till now. Lets see how it goes.

dollarnaira:


End of gloomy season is probably in September. Lagos was hot about 4 days ago and I thought the sun was fully back but the next day it was back to square one till now. Lets see how it goes.

I hope not

Pardon me, but the pictures you posted was my reference, which looks like they were placed on a roof, anyway my sincerest apologies.

Justice629:

Am amazed by how you reached the conclusion that my array is roof mounted :, it has always been ground mounted.

Hello House, what happens if solar panels watts exceed the MPPT solar charge controller specified wat, where the input voltage and current are okay?

example

Panel wattage : 2700w and the solar system is a 24v while on the solar charge controller states for 24v the max PV array is 1650w.

Just arrange the panels is such a way that the total Voc doesn't pass ur CC max Voc, else it wee break ur CC in no time.

obitobe:
Hello House, what happens if solar panels watts exceed the MPPT solar charge controller specified wat, where the input voltage and current are okay?

example

Panel wattage : 2700w and the solar system is a 24v while on the solar charge controller states for 24v the max PV array is 1650w.

swagifted:
what kind of sound system do you use?

Vintage Hi-Fi Audio Amplifier

obitobe:
Hello House, what happens if solar panels watts exceed the MPPT solar charge controller specified wat, where the input voltage and current are okay?

example

Panel wattage : 2700w and the solar system is a 24v while on the solar charge controller states for 24v the max PV array is 1650w.

Someone that can afford 2,700w panels shouldn't have any problem buying the right size of charge controller except the system is a gift

Yes I can afford it but it never occurred to me until this moment that's why I was asking the question.

oweniwe:


Someone that can afford 2,700w panels shouldn't have any problem buying the right size of charge controller except the system is a gift

Please I need recommendation on reliable Luminous Battery sellers, preferably in Ibadan.

Thank you!

They have office or warehouse around testing ground ...or Jericho side.

I can't remember right now.

You can use Google with info I mentioned above

yemi2plus:
Please I need recommendation on reliable Luminous Battery sellers, preferably in Ibadan.

Thank you!

olopan:
Pardon me, but the pictures you posted was my reference, which looks like they were placed on a roof, anyway my sincerest apologies.

Apologies accepted and below is the array mount.
Bright cloudy days are when bifacial truly excels not dark cloudy ones.

Puvo:
Please I got this quote from an installer. Is this system going to be optimal?

1.5kva complete system ( pure sinewave)
1.5kva (12v) inverter: 150,000
220ah battery : 165,000
180w panel : 55,000 (3): 165,000
Mppt Charge controller (30a): 85,000

Hero2t:


Inverter. No brand included for the inverter. You can probably get the Felicity 1.5kva 12v hybrid at that price or with a little extra which means you will no longer need to get the charge controller.

180w panel: Just get a top tier 500W panel. Around same price and probably better output.

220ah battery + mppt charge controller: Add the 165,000 and 85,000 for the charge controller which is overpriced by the way for a 30a charge controller and buy a 100ah 12v lithium battery.

The installer ought to have added brand of the items.

Also I'm really not a fan of buying HYBRID appliances. Imagine buying a PC with onboard Hard-Disk, Ram, etc. The day the PC goes bad, you wouldn't be able to salvage it's RAM, Hard-Disk, etc. Also you wouldn't be able to make partial upgradeseasily or at all.
If He buys a hybrid Inverter (one with built-in Charge-Controller), He wouldn't be able to acertain quality of the Charge-Controller. Mind you, not all MPPT controllers, are created equal.
Also what happens when the Inverter goes Bad beyond repair, He automatically Looses the Charge-Controller.
What if He needs Increase Capacity of the charge-Controller, then he would be forced to change the entire Inverter. Same goes should He have a reason to INCREASE/DECREASE capacity of the inverter.

Also why buy a 12-Volts inverter ?
what happens when you realize you need a 24-Volts or 48-Volts system ?
Why not buy a multi-Volatage inverter (an inverter with 12, 24,48 volts) ?

Also the Battery Quoted is small even without applying the 50% rule. now should we apply the 50% rule, that 220AH battery becomes 220/2 = 105AH. I say this, not considering the fact some batteries are over-rated. Who knows, that 220AH battery might not even be up to 200Ah.

Also for an installer to quote a price of 165,000 naira for a 220AH battery, already gives a hint of the sort of quality He/She would be buying.

Also a solar panel of 180w is too small. yea I know most use smaller wattage due to ease of handling but this is never in the interest of the end user (customer). more, since the installer quoted 3pcs of 180w panel, that should be 3*180= 540w. Now a single 500Watts solar panel, or even better, 2pcs of 300watts solar panelshould be ideal. Should you go for single piece of 500Watts solar panel, you removee need for unnecessary joints, and should you go for 2pcs of 300Watts, you get extra wattage which means faster charge times.

Also please always insist on Mono-Crystalline (aka Mono) solar Panels. ignore all other even the fancy ones. Mono Crystalline solar Panels have been more time tested.


About wether to use Lithium batteries or not, I would suggest New Solar/Inverter users, and all those who don't have the technical knowledge, to only focus on Dry / Wet cell batteries.
There are lots of over-rated Litium batteries out there in the market, with most being FAKE join. I know what I'm saying and those with the right knowledge, knows that also.
lithium technology already is complex, and is known to be very expensive - sooner than later, news would start flooding the forum of how useless Lithium batteries are, when in real sennse, they bought fakes.
I trust marketers to take advantage of this FRESH stage to make as much as they could.
once again, except you know what you're doing, or have a trusted certified dealer, abeg focus on the regular Dry / wet cell batteries. Even the Tubular batteries is more than enough most times.

bassdow:




The installer ought to have added brand of the items.

Also I'm really not a fan of buying HYBRID appliances. Imagine buying a PC with onboard Hard-Disk, Ram, etc. The day the PC goes bad, you wouldn't be able to salvage it's RAM, Hard-Disk, etc.
If He buys a hybrid Inverter (one with built-in Charge-Controller), He wouldn't be able to acertain quality of the Charge-Controller. Mind you, not all MPPT controllers, are created equal. Also what happens when the Inverter goes Bad beyond repair, He automatically Looses the Charge-Controller.
Also why buy a 12-Volts inverter ?
what happens when you realize you need a 24-Volts or 48-Volts system ?
Why not buy a multi-Volatage inverter (an inverter with 12, 24,48 volts) ?

Also the Battery Quoted is small even without applying the 50% rule. now should we apply the 50% rule, that 220AH battery becomes 220/2 = 105AH. I say this, not considering the fact some batteries are over-rated. Who knows, that 220AH battery might not even be up to 200Ah.

Also for an installer to quote a price of 165,000 naira for a 220AH battery, already gives a hint of the sort of quality He/She would be buying.

Also a solar panel of 180w is too small. yea I know most use smaller wattage due to ease of handling but this is never in the interest of the end user (customer). more, since the installer quoted 3pcs of 180w panel, that should be 3*180= 540w. Now a single 500Watts solar panel, or even better, 2pcs of 300watts solar panelshould be ideal. Should you go for single piece of 500Watts solar panel, you removee need for unnecessary joints, and should you go for 2pcs of 300Watts, you get extra wattage which means faster charge times.

Also please always insist on Mono-Crystalline (aka Mono) solar Panels. ignore all other even the fancy ones. Mono Crystalline solar Panels have been more time tested.


About wether to use Lithium batteries or not, I would suggest New Solar/Inverter users, and all those who don't have the technical knowledge, to only focus on Dry / Wet cell batteries.
There are lots of over-rated Litium batteries out there in the market, with most being FAKE join. I know what I'm saying and those with the right knowledge, knows that also.
lithium technology already is complex, and is known to be very expensive - sooner than later, news would start flooding the forum of how useless Lithium batteries are, when in real sennse, they bought fakes.
I trust marketers to take advantage of this FRESH stage to make as much as they could.
once again, except you know what you're doing, or have a trusted certified dealer, abeg focus on the regular Dry / wet cell batteries. Even the Tubular batteries is more than enough most times.

Be mindful + careful of those who come here to recommend some person(s) as being trusted. I could create multiple NAIRALAND accounts, and use one to recommend the other. or maybe recommend someone who's a partner (in crime) .

If you are spending more than 100,000 naira on Solar systems, I often suggest at least a 24-volts system. It's much cheaper, and much better.

If you don't have the money, focus more on buying more Solar Panels, buy your charge-Controller over-Sized so you could add much more solar panels. You could connect them all in Paralel so you could continue using your 12-Volts battery.

Then when you have more money, you buy more batteries say 2 or 4 pieces or more and reconnect the solar-Panels in series (and parallel) so as to make it 24 or 48 volts system. and if your inverter supports multiple voltages, then you don't have to upgrade it.

Also with 24 or 48 volts system, you would require slimmer wires, unlike the fat ones that 12-volts systems often require.

@bassdow
Seems you just located this thread few weeks ago. "Multiple accounts to recommend a lithium seller". I laff finish oo. Valto u dey see wetin i dey see so? Comparing lithium hmmm.

Dont let us go to acid vs lithium biko.

dollarnaira:
@bassdow
Seems you just located this thread few weeks ago. "Multiple accounts to recommend a lithium seller". I laff finish oo. Valto u dey see wetin i dey see so? Comparing lithium hmmm.

Dont let us go to acid vs lithium biko.

I'm not trying to Compare Lithium vs ACID. Just pointing out that by making everyone believe lithium is much better, more advice should be made so people don't fall victims to fakes.

As for recommending any trusted dealer, trust me, I might not know Valto or the likes but there's every tendency that some other people might make their own recommendation that might not be genuine and some unsuspecting people would fall for them.

my suggestion remains that for most newbies, they should focus on non-Lithium based batteries. If they have the money, going for average to high end Wet cell batteries should be more than enough for them. Till at least they really get to such stage when they would require something much different. and before then, they swould have learnt a couple of things along the way

bassdow:




The installer ought to have added brand of the items.

Also I'm really not a fan of buying HYBRID appliances. Imagine buying a PC with onboard Hard-Disk, Ram, etc. The day the PC goes bad, you wouldn't be able to salvage it's RAM, Hard-Disk, etc.
If He buys a hybrid Inverter (one with built-in Charge-Controller), He wouldn't be able to acertain quality of the Charge-Controller. Mind you, not all MPPT controllers, are created equal. Also what happens when the Inverter goes Bad beyond repair, He automatically Looses the Charge-Controller.
Also why buy a 12-Volts inverter ?
what happens when you realize you need a 24-Volts or 48-Volts system ?
Why not buy a multi-Volatage inverter (an inverter with 12, 24,48 volts) ?

Also the Battery Quoted is small even without applying the 50% rule. now should we apply the 50% rule, that 220AH battery becomes 220/2 = 105AH. I say this, not considering the fact some batteries are over-rated. Who knows, that 220AH battery might not even be up to 200Ah.

Also for an installer to quote a price of 165,000 naira for a 220AH battery, already gives a hint of the sort of quality He/She would be buying.

Also a solar panel of 180w is too small. yea I know most use smaller wattage due to ease of handling but this is never in the interest of the end user (customer). more, since the installer quoted 3pcs of 180w panel, that should be 3*180= 540w. Now a single 500Watts solar panel, or even better, 2pcs of 300watts solar panelshould be ideal. Should you go for single piece of 500Watts solar panel, you removee need for unnecessary joints, and should you go for 2pcs of 300Watts, you get extra wattage which means faster charge times.

Also please always insist on Mono-Crystalline (aka Mono) solar Panels. ignore all other even the fancy ones. Mono Crystalline solar Panels have been more time tested.


About wether to use Lithium batteries or not, I would suggest New Solar/Inverter users, and all those who don't have the technical knowledge, to only focus on Dry / Wet cell batteries.
There are lots of over-rated Litium batteries out there in the market, with most being FAKE join. I know what I'm saying and those with the right knowledge, knows that also.
lithium technology already is complex, and is known to be very expensive - sooner than later, news would start flooding the forum of how useless Lithium batteries are, when in real sennse, they bought fakes.
I trust marketers to take advantage of this FRESH stage to make as much as they could.
once again, except you know what you're doing, or have a trusted certified dealer, abeg focus on the regular Dry / wet cell batteries. Even the Tubular batteries is more than enough most times.

This is a very detailed insight. Thanks boss

bassdow:





Be mindful + careful of those who come here to recommend some person(s) as being trusted. I could create multiple NAIRALAND accounts, and use one to recommend the other. or maybe recommend someone who's a partner (in crime) .

If you are spending more than 100,000 naira on Solar systems, I often suggest at least a 24-volts system. It's much cheaper, and much better.

If you don't have the money, focus more on buying more Solar Panels, buy your charge-Controller over-Sized so you could add much more solar panels. You could connect them all in Paralel so you could continue using your 12-Volts battery.

Then when you have more money, you buy more batteries say 2 or 4 pieces or more and reconnect the solar-Panels in series (and parallel) so as to make it 24 or 48 volts system. and if your inverter supports multiple voltages, then you don't have to upgrade it.

Also with 24 or 48 volts system, you would require slimmer wires, unlike the fat ones that 12-volts systems often require.

Thank you sir. I’ll just get a 24v inverter and 2 batteries

Justice629:

I hope not

How far your weather after the sunny day?

bassdow:


I'm not trying to Compare Lithium vs ACID. Just pointing out that by making everyone believe lithium is much better, more advice should be made so people don't fall victims to fakes.

As for recommending any trusted dealer, trust me, I might not know Valto or the likes but there's every tendency that some other people might make their own recommendation that might not be genuine and some unsuspecting people would fall for them.

my suggestion remains that for most newbies, they should focus on non-Lithium based batteries. If they have the money, going for average to high end Wet cell batteries should be more than enough for them. Till at least they really get to such stage when they would require something much different. and before then, they swould have learnt a couple of things along the way

Each time I hear newbie I feel somehow.
Solar is not for dumbs. This thread is for those with a working brain. Evaluation and deduction are needed here.

bassdow:


The installer ought to have added brand of the items.

Also I'm really not a fan of buying HYBRID appliances. Imagine buying a PC with onboard Hard-Disk, Ram, etc. The day the PC goes bad, you wouldn't be able to salvage it's RAM, Hard-Disk, etc.
If He buys a hybrid Inverter (one with built-in Charge-Controller), He wouldn't be able to acertain quality of the Charge-Controller. Mind you, not all MPPT controllers, are created equal. Also what happens when the Inverter goes Bad beyond repair, He automatically Looses the Charge-Controller.

The problem here is cost. If one decides to buy things separate, it'll be double the cost of hybrid inverter.

For example, say 2.5kva hybrid with inverter, Mppt CC and battery charger all in one is 150k,

If one want to buy inverter, Mppt, battery charger separately, it'll cost more than 150k. More complicated wiring is another issue too.

If the hybrid Inverter is good one, make just person just buy external Mppt CC and install good fuses and breakers in place to protect the system. Dey manage am like that

bassdow:






Also I'm really not a fan of buying HYBRID appliances. Imagine buying a PC with onboard Hard-Disk, Ram, etc. The day the PC goes bad, you wouldn't be able to salvage it's RAM, Hard-Disk,

Lol, Are you still using A Desktop computer? Or you are using a Laptop?

Embrace the Change in technology..

Dam5reey:


Lol, Are you still using A Desktop computer? Or you are using a Laptop?

Embrace the Change in technology..

Na so nah.

Person go buy

1. Display Monitor
2. Tower
3. Keyboard
4. Mouse
5. External Speakers
6. External Webcam
7. UPS to serve as battery

When everything dey one laptop.

Except person dey run server that require multiple disks, why not just buy a laptop?

oweniwe:


The problem here is cost. If one decides to buy things separate, it'll be double the cost of hybrid inverter.

For example, say 2.5kva hybrid with inverter, Mppt CC and battery charger all in one is 150k,

If one want to buy inverter, Mppt, battery charger separately, it'll cost more than 150k. More complicated wiring is another issue too.

If the hybrid Inverter is good one, make just person just buy external Mppt CC and install good fuses and breakers in place to protect the system. Dey manage am like that

Which inverter you Dey use boss?

Puvo:



Which inverter you Dey use boss?

Smarten 2.5kva 24v hybrid

Please is there any ready made power box with solar that can carry a load of 250watt for atleast 6 hours? Anyone has an idea?

dollarnaira:


How far your weather after the sunny day?

It was a bright full cloudy day with scattered patches of rain and dark clouds, generated 15.2Kwh.
I believe it gets better from here on out .

Puvo:


Thank you sir. I’ll just get a 24v inverter and 2 batteries

If you could afford it, get Tubular batteries. Something like Luminous is a good start

Dam5reey:


Lol, Are you still using A Desktop computer? Or you are using a Laptop?

Embrace the Change in technology..

Both have pros and cons.
Both will perform great but desktop will perform better under certain high task.

Hybrids and stand alones are great technology and will perform well. Hybrid is like akara inside bread ( sandwich) while standalone is like akara(bean cake) separated from bread. Both will be chewed and swallowed and end up in the same belly.

So there is no change in technology btw hybrids and standalones.

Justice629:


It was a bright full cloudy day with scattered patches of rain and dark clouds, generated 15.2Kwh.
I believe it gets better from here on out .

Good!

oweniwe:


The problem here is cost. If one decides to buy things separate, it'll be double the cost of hybrid inverter.

For example, say 2.5kva hybrid with inverter, Mppt CC and battery charger all in one is 150k,

If one want to buy inverter, Mppt, battery charger separately, it'll cost more than 150k. More complicated wiring is another issue too.

If the hybrid Inverter is good one, make just person just buy external Mppt CC and install good fuses and breakers in place to protect the system. Dey manage am like that

Price will reflect in the product bro.
How do you tell if the inbuilt cc is not a glorified pwm?

2 wires go to battery in hybrid.
4 wires go to battery in standalone. What now makes it complex?

Nice installation you have there with a well built support too, you can get the panels to generate more by up to 5% if the ground below is more reflective by flooring or back filling with white sand i.e. if the above has not been done.

Justice629:

Apologies accepted and below is the array mount.
Bright cloudy days are when bifacial truly excels not dark cloudy ones.

Guys check out this twitter post on rooftop types to avoid when planning to install Solar on your building rooftops.

https://twitter.com/oloyeadeniran/status/1693350994086658509?s=20