₦airaland Forum

hoover420:
The real reason I even went for the hybrid inverter is because I won’t need MPPT. But now, what’s the essence of getting hybrid when you’ll still MPPT to mount just 2 panels. Meanwhile I told the installer about installing it in parallel but he still insisted that it won’t work. I can’t argue with him because that’s his area of expertise and he was the one that initially installed the whole setup for me without any issues.

Your best bet is in series because amps will be too much. From the below test it did not exceed 50v. The operational volt was 42v at 90% efficiency. And when connected to a system, voltage will drop due to distance and other shadings that may arise.

Unfaized:
Don't go ahead with the installation, it's not safe.

Your options are;
1. Get an mppt charge controller.
2. Sell inverter at a small loss and get Bread inverter with higher Voc.
3. Sell or keep the extra panel and work towards upgrading to 24v.

I'll go for option 2 if it was me.

One of the main issue of that high voc is that you have to get to 350v for you to get a sweet yield. Having only two panel may give him less than 700w generated

eghos12:
One of the main issue of that high voc is that you have to get to 350v for you to get a sweet yield. Having only two panel may give him less than 700w generated

I doubt if a 12v inverter will require as high as 350v... It's usually within a range of 40v - max (My 24v Haisic)

But sha make he check parameters before proceeding.

*Oh you meant 'sweet yield'. True though, but it should deliver circa 80% rated capacity give or take during peak sunlight hrs.

eghos12:
Your best bet is in series because amps will be too much. From the below test it did not exceed 50v. The operational volt was 42v at 90% efficiency. And when connected to a system, voltage will drop due to distance and other shadings that may arise.

Remember he probably got Bifacial panels so you must factor that in.

My array exceeds the sum of Voc sometimes. Bottom line is it's not even safe to try to find out, voltage no dey 4give.

Bro check your mc4 connectors. Something similar happened to me. It was the mc4 connectors

Sapiosexuality:
I've already replaced the breakers on the first day that I noticed the problem.

Could it be a damaged cable? A week or two back, I was using it to boil water, something I rarely do and the water got so heated that I heard a spark on one of the cables.

Though nothing happened after that and I just simply unplugged it.

This one na lie. I get 800-1.1kw on my 2 535w jinko bifacial

eghos12:
One of the main issue of that high voc is that you have to get to 350v for you to get a sweet yield. Having only two panel may give him less than 700w generated

Need your advice on this I am planning for my parents


Double door fridge or Freezer (From 9am to sunset)
55" Tv (Non Smart) 14 Hrs
Decoder ( DSTV) 14 Hrs
Soundbar = 10 Hrs
Lights = 10 pcs ( 4pcs of 20w for 10 Hrs and 6pcs of 15w @ 6 Hrs)
Ceiling Fan = 8 Hrs
Blender Ocassion use
Charging of phones
Miscellaneous

Optional if to be used, then other use will be put of
Pumping of Water (1hp) During the day
Microwave use during the day

The above is what I want to power

1. I plan for a 5kwh Lithium Battery and what Brand?

2. Do I use 24v or 48v Inverter and which good brand?

3. Should I use (inverter + MPPT) or Hybrid inverter? Transformer or Transformerless?

4. How many panels and what brands/capacity

My budget is 2 million, but can slightly be reviewed and not more than 250k

Your usual advice will highly be appreciated

Unfaized:
I doubt if a 12v inverter will require as high as 350v... It's usually within a range of 40v - max (My 24v Haisic)

But sha make he check parameters before proceeding.

*Oh you meant 'sweet yield'. True though, but it should deliver circa 80% rated capacity give or take during peak sunlight hrs.

True but the outcome is not always as planned. Many installers use to connect 4 pieces of 550w and above before they can get 1200-1500w generated power. If it does not reach that amount then it will be around 600w if you use two pieces. This was in sako 2.2kva hybrid with High voltage mppt

eghos12:
True but the outcome is not always as planned. Many installers use to connect 4 pieces of 550w and above before they can get 1200-1500w generated power. If it does not reach that amount then it will be around 600w if you use two pieces. This was in sako 2.2kva hybrid with High voltage mppt

I see...

Unfaized:
Remember he probably got Bifacial panels so you must factor that in.

My array exceeds the sum of Voc sometimes. Bottom line is it's not even safe to try to find out, voltage no dey 4give.

Bifacial that is on the roof hardly generate from it sha.
If DC avr was available that would have solved this issue.

Gshems:
This one na lie. I get 800-1.1kw on my 2 535w jinko bifacial

What brand of inverter you use??

eghos12:
Your best bet is in series because amps will be too much. From the below test it did not exceed 50v. The operational volt was 42v at 90% efficiency. And when connected to a system, voltage will drop due to distance and other shadings that may arise.

Exactly what he said about the amps. He said something about the inverter’s amps is 18 or so but he didn’t mention anything about connecting in series. He just outrightly said I should go for MPPT

eghos12:
Your best bet is in series because amps will be too much. From the below test it did not exceed 50v. The operational volt was 42v at 90% efficiency. And when connected to a system, voltage will drop due to distance and other shadings that may arise.

Exactly what he said about the amps. He said something about the inverter’s amps is 18 or so but he didn’t mention anything about connecting in series… oh connecting in series means using MPPT right?

Fouani currently listing Deye 6kw for 547700 on their website for those interested.

hoover420:
Exactly what he said about the amps. He said something about the inverter’s amps is 18 or so but he didn’t mention anything about connecting in series… oh connecting in series means using MPPT right?

Connect in series means your 100v input might be exceeded

bassdow:
see eh, just put it in parallel and try things out OR listen to those who wouldn't be affected should things go bad though in your situation, the inverter MIGHT not spoil. It just could stop charging till the sun goes down enough BUT are you wiling to take such risk ?

Tbh, I don’t think I am willing to take that risk. I’ll just wait till I can afford an MPPT. Make the panel still Dey there Dey accumulate dust.

Unfaized:
I see...

And also Hoover has a formal 535w with 49voc if he add the 52 Voc of 585w it will only get to 102. And me and you know that all these is impossible because to attain STC is very hard and also the company always have UPTO extra 5% as tolerance before failure. He can ask where he bought the inverter to message hasic chief engineer if to go ahead or not

hoover420:
Bro I just got the Haisic inverter less than 4 months ago? If I am to sell it now, it means I’ll have to go for the 24v cos what’s the essence of selling it just to get another brand of 12v and 1.5kva again? All those walaha just tire me, meanwhile I am still paying nothing less than 20k for prepaid. Power generation in this country will just drain someone if the person isn’t careful.

Na you or your installer even Bleep up in the first place to go buy inverter with such poor cc limitation

eghos12:
Connect in series means your 100v input might be exceeded

Quick question pls, is it because of the high wattage of the panels or can I just sell off the panels and get smaller ones like 250 watts X 4 Will it work with the inverter or the inverter is just too small to carry any panel above 500watt? Cos tbh, the 535 watt I installed is working perfectly.

eghos12:
Your best bet is in series because amps will be too much. From the below test it did not exceed 50v. The operational volt was 42v at 90% efficiency. And when connected to a system, voltage will drop due to distance and other shadings that may arise.

thing about this approach is it could be Hit or Miss. Been to site where client bought things themselves. Saw some issues BUT decided to go around it. sometimes things were a success, other times, you end up with client complaining it sometimes stops charging.

That's reason I just gave him 3 likely things to expect. Also don't think it wouldn't easily get past 100v especially when the sunLight comes out very well during Afternoons EXCEPT He's un lucky the solar panels are not good enough compared to what's stated on it's stickers

hoover420:
Quick question pls, is it because of the high wattage of the panels or can I just sell off the panels and get smaller ones like 250 watts X 4 Will it work with the inverter or the inverter is just too small to carry any panel above 500watt? Cos tbh, the 535 watt I installed is working perfectly.

If you can sell all the panels it will be the best option. For this design the best is to buy 320w in four pieces. Then it will be connected in 2s2p I.e two will be in series then both will now be finally paralled. The total Volt will be 80 and the amps will be less than 18.

hoover420:
Quick question pls, is it because of the high wattage of the panels or can I just sell off the panels and get smaller ones like 250 watts X 4 Will it work with the inverter or the inverter is just too small to carry any panel above 500watt? Cos tbh, the 535 watt I installed is working perfectly.

Please do not sell off those solar panels. If you must sell off anything, let it be the inverter. Selling off the bigger solar panels (obviously at a loss) only to purchase 250w is what only Nigerian gunMent would do. I presume you ain't that silly.

Mistakes has been made already. Try not to further complicate things.

Also you said you asked and even we in here gave you suggestions. Hopefully we're learning so we know to ensure we don't misLead people because at end of the day, making such mistakes which obviously leads to wastage of funds defeats the purpose of coming here to begin with.

eghos12:
If you can sell all the panels it will be the best option. For this design the best is to buy 320w in four pieces. Then it will be connected in 2s2p I.e two will be in series then both will now be finally paralled. The total Volt will be 80 and the amps will be less than 18.

This is thinking for today alone, not tomorrow. I wouldn't suggest this. Mind you, I got London used 350w solar panels BUT still wouldn't suggest He sell his bigger ones off because it wouldn't make sense financially.

Also what happens when he wanna upGrade, He would end up having a multitude of such smaller panels OR find himself needing to once again sell them off in other to purchase bigger or better ones.

bassdow:
thing about this approach is it could be Hit or Miss. Been to site where client bought things themselves. Saw some issues BUT decided to go around it. sometimes things were a success, other times, you end up with client complaining it sometimes stops charging.

That's reason I just gave him 3 likely things to expect. Also don't think it wouldn't easily get past 100v especially when the sunLight comes out very well EXCEPT He's lucky the solar panels are not good enough compared to what's stated on it's stickers

Yes it a wrong arrangement from the onset sha. It is not his fault sha,The old hasic inverter had 125v max voltage and 13 amp pv current. Then many installers use to series only two panels and it worked. It is the new model that is confusing people not knowing that they have changed the mppt.

eghos12:
And also Hoover has a formal 535w with 49voc if he add the 52 Voc of 585w it will only get to 102. And me and you know that all these is impossible because to attain STC is very hard and also the company always have UPTO extra 5% as tolerance before failure. He can ask where he bought the inverter to message hasic chief engineer if to go ahead or not

What you saying is RIGHT but there are lots of times these hybrid inverters would in a bid to prevent damage, end up messing you up.

And a lot of times, these solar panels sometimes goes higher than t heir rated voltage sef. Doesn't matter how long AND when it does, trust the inverter to react accordingly.

bassdow:
This is thinking for today alone, not tomorrow. I wouldn't suggest this. Mind you, I got London used 350w solar panels BUT still wouldn't suggest He sell his bigger ones off because it wouldn't make sense financially.

Also what happens when he wanna upGrade, He would end up having a multitude of such smaller panels OR find himself needing to once again sell them off in other to purchase bigger or better ones.

But don't forget that for him to upgrade he has to go to 48v system because now he will now be running AC, borehole e.t.c. if it is only basic things, the 12v will chest it well without any issues in an household

Pabodo:
Need your advice on this I am planning for my parents


Double door fridge or Freezer (From 9am to sunset)
55" Tv (Non Smart) 14 Hrs
Decoder ( DSTV) 14 Hrs
Soundbar = 10 Hrs
Lights = 10 pcs ( 4pcs of 20w for 10 Hrs and 6pcs of 15w @ 6 Hrs)
Ceiling Fan = 8 Hrs
Blender Ocassion use
Charging of phones
Miscellaneous

Optional if to be used, then other use will be put of
Pumping of Water (1hp) During the day
Microwave use during the day

The above is what I want to power

1. I plan for a 5kwh Lithium Battery and what Brand?

2. Do I use 24v or 48v Inverter and which good brand?

3. Should I use (inverter + MPPT) or Hybrid inverter? Transformer or Transformerless?

4. How many panels and what brands/capacity

My budget is 2 million, but can slightly be reviewed and not more than 250k

Your usual advice will highly be appreciated

were you the person who asked some days ago that I suggested to tell us their loads and usage hours ?

eghos12:
But don't forget that for him to upgrade he has to go to 48v system because now he will now be running AC, borehole e.t.c. if it is only basic things, the 12v will chest it well without any issues in an household

All these no go help am. Make him kukuma just leave the new solar panel idle, and continue managing things as they currently are. Then graually look for a buyer that would buy either 1 or both solar panels at favourable worth OR He upgrades the inverter OR get a good charge controller.

This matter don consume over 2-pages already. The contents would rarely be useful to those coming in here for first time. Most are here to make research BUT gets overwhelmed quickly due to lots of Noise.

We don tell bros what to do tey tey, na the amount involved dey cause friction

bassdow:
were you the person who asked some days ago that I suggested to tell us their loads and usage hours ?

Yes I am

Pabodo:
Need your advice on this I am planning for my parents


Double door fridge or Freezer (From 9am to sunset)
55" Tv (Non Smart) 14 Hrs
Decoder ( DSTV) 14 Hrs
Soundbar = 10 Hrs
Lights = 10 pcs ( 4pcs of 20w for 10 Hrs and 6pcs of 15w @ 6 Hrs)
Ceiling Fan = 8 Hrs
Blender Ocassion use
Charging of phones
Miscellaneous

Optional if to be used, then other use will be put of
Pumping of Water (1hp) During the day
Microwave use during the day

The above is what I want to power

1. I plan for a 5kwh Lithium Battery and what Brand?

2. Do I use 24v or 48v Inverter and which good brand?

3. Should I use (inverter + MPPT) or Hybrid inverter? Transformer or Transformerless?

4. How many panels and what brands/capacity

My budget is 2 million, but can slightly be reviewed and not more than 250k

Your usual advice will highly be appreciated

Bros, let me be honest with you, first your budget is very very slim EXCEPT You are willing to use a combination of NEW + USEd items.

Secondly, Abeg clarify which load is used more during the day vs at Night e.g 55" Tv (Non Smart) 14 Hrs (3-hours during the day and 11-hours at Night)

That would be much more helpful

Secondly, you really don't have much heavy loads BUT still care needs be taken. For battery, A lithium battery of 8kwh should be much better OR you do used Tubular batteries (Love to give people options)

Yea 24v system would work. Would have suggested 48v system BUT that would proportionally affect cost of battery so yea let's leave it at 24v system.

Also by default, the pumping machine should ever only be used during the day when the sun is working full time.

Knowing if your load usage patterns is more Day or Night time would help decide if the battery is enough or needs be increased.

and please no dey blow grammar such as "(From 9am to sunset)", it forces some of us wey go backYard college to first pause, try to make sense of itss actual meaning before continuing.

bassdow:
Bros, let me be honest with you, first your budget is very very slim EXCEPT You are willing to use a combination of NEW + USEd items.

Secondly, Abeg clarify which load is used more during the day vs at Night e.g 55" Tv (Non Smart) 14 Hrs (3-hours during the day and 11-hours at Night)

That would be much more helpful

Secondly, you really don't have much heavy loads BUT still care needs be taken. For battery, A lithium battery of 8kwh should be much better OR you do used Tubular batteries (Love to give people options)

Yea 24v system would work. Would have suggested 48v system BUT that would proportionally affect cost of battery so yea let's leave it at 24v system.

Also by default, the pumping machine should ever only be used during the day when the sun is working full time.

Knowing if your load usage patterns is more Day or Night time would help decide if the battery is enough or needs be increased.

and please no dey blow grammar such as "(From 9am to sunset)", it forces some of us wey go backYard college to first pause, try to make sense of itss actual meaning before continuing.

@Pabodo
waiting...

bassdow:
Bros, let me be honest with you, first your budget is very very slim EXCEPT You are willing to use a combination of NEW + USEd items.

Secondly, Abeg clarify which load is used more during the day vs at Night e.g 55" Tv (Non Smart) 14 Hrs (3-hours during the day and 11-hours at Night)

That would be much more helpful

Secondly, you really don't have much heavy loads BUT still care needs be taken. For battery, A lithium battery of 8kwh should be much better OR you do used Tubular batteries (Love to give people options)

Yea 24v system would work. Would have suggested 48v system BUT that would proportionally affect cost of battery so yea let's leave it at 24v system.

Also by default, the pumping machine should ever only be used during the day when the sun is working full time.

Knowing if your load usage patterns is more Day or Night time would help decide if the battery is enough or needs be increased.

and please no dey blow grammar such as "(From 9am to sunset)", it forces some of us wey go backYard college to first pause, try to make sense of itss actual meaning before continuing.

The TV is used from 10am upto 10pm. The stated loads apart from light are basically used throughout the day as this are parents that are

always home. Though good management can also be adopted.

Fridge used from about 9am to 4/5pm