makavele:
P.S.: I am not also practical; I am highly controversial . . .

Y'all should start getting used to it . . .

Good, could you please answer this again!

I received my panel today and took it out around 12 noon for bench test if I measure both Voc and Isc; Am I supposed to get values close to the panel spec VOC = 44.3, Isc = 8.93A?

Dam5reey:


Good, could you please answer this again!

I received my panel today and took it out around 12 noon for bench test if I measure both Voc and Isc; Am I supposed to get values close to the panel spec VOC = 44.3, Isc = 8.93A?

Yes, you should get values close to that . . .

And why sir do you need those values ?

House please help review these inverters. Thanks.

Emerson CP 70i 01 20 KVA 110V Inverter

Kevin DSP Sine Wave ALBS 20 KVA 240V Inverter

emmaniche:
House please help review these inverters. Thanks.

Emerson CP 70i 01 20 KVA 110V Inverter

Kevin DSP Sine Wave ALBS 20 KVA 240V Inverter

CC Kiekie1

makavele:


Yes, you should get values close to that . . .

And why sir do you need those values ?

You have just answered the question,

Yes it's shows I bought real 300watts panels, then I can troubleshoot other things like cable, controller and so on... Cheers..

makavele:


WHy you dey confuse yaself, Mr Man?
You mentioned peak yeah?

Did you generate 91% consistently and continuously for say, 10-15 minutes during "peak" sunshine?
(i find this hard to believe)

Or did you generate 91% for just 1-3 seconds . . which I would term as "peak" generation for the day?
(i can still believe this one)

So in which context is your "peak" used ?


Zeestone99; I am loading for you !!!

makavele:


Let me break it down for you sir . .

What do you mean sun intensity to calculate . . ? LOL

I need real life answers . . . So i go to my lounge; hook up a multimeter and see what is coming in . . . How simple can it get . .

I don't even take into account what the Charge Controller is telling me, i check voltage and current and resistance manually . . .

That's an overkill for practicality . . .

Back to you: Let's be honest and serious for once . . .

Even with a Yachi, Yingli, Solarworld, CanadianSolar or brazilian whatever . . in real life specs; you cannot get 91% of panel specs . .

That is the answer he needs. So if we go back to why I told you all to discard the manuals, now you see it.

Under STC, a 100W panel should produce at least 99.9W of power . . . but if you are basing your judgements on STC, you are headed for an

epic world of failure or regrets.

He asked a question, f*ck the STC; give him a real life answer . . .

if he gets above that, good . . ; if he doesnt, then he won't be disappointed.

Thanks to everyone. All your your argument are very robust and I really appreciate all your thoughts.

My real concern is that I only get about 2400W max instantaneously out of the total install capacity of 4500W. I wanted to know if something is wrong with the panels. I have learnt a lot today about what I need to check on the other elements. The last enquiry is that how am I sure that my panel is doing what it is supposed to be doing. I wanted a way to validate that the problem is not coming from the panel itself. So, I wanted to find out from you experts, if I can validate the panels by checking the Voc and Isc on a sunny afternoon and comparing to the ratings of the panel. Based on all your experiences, will I get a reading (using multimeter) close to the ratings of the panel if the panel is ok ? Or is there another way of finding out if the panels are ok?

Thanks...

Dam5reey:


You have just answered the question,

Yes it's shows I bought real 300watts panels, then I can troubleshoot other things like cable, controller and so on... Cheers..

You see why I said you're confusing yourself . .

Take for example, the OP asked me this question and I answered in the affirmative, the OP goes home happy

and sees only about 55% panel power under intense sunshine and he starts troubleshooting like you . . buys a $1500 controller

and uses 00 AWG cables all through and in the end still gets no more than 77% ; and the sun is blazing hot outside?

What is your resolution; since he didn't buy fake panels, nor fake controllers; and used overkill wiring . . ?

with installation near perfect, all being equal ?

makavele:


You see why I said you're confusing yourself . .

Take for example, the OP asked me this question and I answered in the affirmative, the OP goes home happy

and sees only about 55% panel power under intense sunshine and he starts troubleshooting like you . . buys a $1500 controller

and uses 00 AWG cables all through and in the end still gets no more than 77% ; and the sun is blazing hot outside?

What is your resolution; since he didn't buy fake panels, nor fake controllers; and used overkill wiring . . ?

with installation near perfect, all being equal ?

I have learnt to answered questions as it was being asked, then provide more information...

Dam5reey:


I have learnt to answered questions as it was being asked, then provide more information...

That, my friend, isn't a satisfactory answer to my question . . .

For lack of a better word, I'll say Shalom !!

olagunju2000:


Thanks to everyone. All your your argument are very robust and I really appreciate all your thoughts.

My real concern is that I only get about 2400W max instantaneously out of the total install capacity of 4500W. I wanted to know if something is wrong with the panels. I have learnt a lot today about what I need to check on the other elements. The last enquiry is that how am I sure that my panel is doing what it is supposed to be doing. I wanted a way to validate that the problem is not coming from the panel itself. So, I wanted to find out from you experts, if I can validate the panels by checking the Voc and Isc on a sunny afternoon and comparing to the ratings of the panel. Based on all your experiences, will I get a reading (using multimeter) close to the ratings of the panel if the panel is ok ? Or is there another way of finding out if the panels are ok?

Thanks...

Back to your question, You will not get maximum power from 11 to 1 pm as the panels are extremely hot.. but as you mentioned that it was installed on a Car port then, you should see a peak above 70%..

The peak, I get now is 156watts, due to the weather conditions I do get 140- 156w for about two hours...
My panels are directly on the roof also It's been a while I wash them.. though my place is not that dusty

Dam5reey:


Back to your question, You will not get maximum power from 11 to 1 pm as the panels are extremely hot.. but as you mentioned that it was installed on a Car port then, you should see a peak above 70%..

The peak, I get now is 156watts, due to the weather conditions I do get 140- 156w for about two hours...
My panels are directly on the roof also It's been a while I wash them.. though my place is not that dusty

makavele:


That, my friend, isn't a satisfactory answer to my question . . .

Dam5reey, makavele , You are both great minds... Thanks a lot

emmaniche:
House please help review these inverters. Thanks.

Emerson CP 70i 01 20 KVA 110V Inverter

Kevin DSP Sine Wave ALBS 20 KVA 240V Inverter

Hello, Kelvin 20kva albs is an Indian brand which uses 30 batteries .. It is a pure sinewave inverter which operates from 0°-45° temp with features like;
-All necessary Protection like Short Circuit, Battery Low/High, Electronic change over, hence better reliability, High performance voltage and current regulation with DSP control, Mains MCB Tripped etc. with Comprehensive display., Over Temp etc

Emerson brand as stated above must be 110v ... Cheers!

makavele:


CC Kiekie1

Seen!

kiekie1:


Hello, Kelvin 20kva albs is an Indian brand which uses 30 batteries .. It is a pure sinewave inverter which operates from 0°-45° temp with features like;
-All necessary Protection like Short Circuit, Battery Low/High, Electronic change over, hence better reliability, High performance voltage and current regulation with DSP control, Mains MCB Tripped etc. with Comprehensive display., Over Temp etc

Emerson brand as stated above must be 110v ... Cheers!

110V for Naija ?
Self-induced brownout

kiekie1:
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Prag Solar inverter 1.5kva 24v....N121,000
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Prag 4kva 24v wall H ......N230,000
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-Prag 10kva servo(130-250v) ..N110,000
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Keep the calls coming .. We appreciate !

olagunju2000:


Dam5reey, makavele , You are both great minds... Thanks a lot

You are most welcome, I'm still learning too..

Chuckdee and dapsyra may assist with there current generation it will do a much better help since they have same setup...

You should have peace of mind now, with this
https://pvoutput.org/list.jsp?userid=46221

olagunju2000:
Good day house. Please i need your help to help review my setup as I am getting not up 60% of my installation capacity

I have the following

1) 15 pcs 300W mono solar panel (3 in series and 5 parallel)
2) Panel Spec:- VOC = 44.3, Isc = 8.93A, Vmp = 36V, Imp = 8.33A.
3) Based on the connection, Total V= 132V and I= 44.65A(Voc and Isc used in the computation).
4) I have a Master Charge Controller: Max 150V and 80A (48V system)


QUESTIONS:
1) my total installation capacity is 4500W (solar panel), out of which I am getting max of 2400W. Is this normal
2) Is there anything wrong with my installation.
3) The power generated has not been sufficient to charge my batteries. Is there a way to improve this

Please help

THE BOLDED ARE MY LIKELY SUSPECTS.
THE INSTALLER SHUD HV USED A COMBINER BOX, OR BY PARALLELING..HE RAN 5 DIFFERENT CABLES TO TERMINATE AT THE CC?..if yes...then no problem, what is the guage of the cable he used?.

2ndly..ur charge controller may be defective

3rdly..some panles may be defective, thus reducing your harvest. you may need to check each panel one by one.

for such a serious setup..i wonder why he didnt use a high end or mid range charge controller?....the cc he used is relatively unknown,, and he has no reason to use such a cc...for such an expensive setup as yours.

would suggest u borrow a known good charge controller epsolar/morning star/midnite solar etc...n hook up to ur set up. if no change...then check ur panels one by one.
first of all check ur cabling..and confirm the guage, better still send a pic of the panel cables going into the CC

Dam5reey:


You are still not getting it...
How do we then know he bought real 300watts panels and not a fake 300watts at the back?

I use a 1kw inverter,
but it cannot power power a load of 800W continuously then you tell me it's 1kw

You are practical person yet you use multimeter to measure your current instead of using the sun intensity to calculate...

You have not answered his question correctly... That was why I disagree...

This is bad for appliances, that it is 1kw doesn't mean u shud load it up to 1kw, u ll kill it gradually, for me i won't even do 800w,thats 80% broda... Get a higher inverter dat ll do 800w comfortably

zeestone99:


This is bad for appliances, that it is 1kw doesn't mean u shud load it up to 1kw, u ll kill it gradually, for me i won't even do 800w,thats 80% broda... Get a higher inverter dat ll do 800w comfortably

he is suffering from thermal throttling . . .

zeestone99:


This is bad for appliances, that it is 1kw doesn't mean u shud load it up to 1kw, u ll kill it gradually, for me i won't even do 800w,thats 80% broda... Get a higher inverter dat ll do 800w comfortably

yes I'm aware but 1kw should be able to do 800watts conveniently.. I only made an example.. why ratings on appliances are important


I'm not talking about Chinese ratings... That will rate the Inverter it's peak power, instead of continuous power, those are the Little things we should take note when buying electronics.. cheers

olagunju2000:


Thanks to everyone. All your your argument are very robust and I really appreciate all your thoughts.

My real concern is that I only get about 2400W max instantaneously out of the total install capacity of 4500W. I wanted to know if something is wrong with the panels. I have learnt a lot today about what I need to check on the other elements. The last enquiry is that how am I sure that my panel is doing what it is supposed to be doing. I wanted a way to validate that the problem is not coming from the panel itself. So, I wanted to find out from you experts, if I can validate the panels by checking the Voc and Isc on a sunny afternoon and comparing to the ratings of the panel. Based on all your experiences, will I get a reading (using multimeter) close to the ratings of the panel if the panel is ok ? Or is there another way of finding out if the panels are ok?

Thanks...

One step at a time sir, Wat we discussed is OK, besides u ll stil b needing the item for upgrade, so moni no waste

zeestone99:


One step at a time sir, Wat we discussed is OK, besides u ll stil b needing the item for upgrade, so moni no waste

After checking through this https://pvoutput.org/list.jsp?userid=46221

Seems he does not need to worry to much... Unless he has spare cash to get Better CC...

earthrealm:


THE BOLDED ARE MY LIKELY SUSPECTS.
THE INSTALLER SHUD HV USED A COMBINER BOX, OR BY PARALLELING..HE RAN 5 DIFFERENT CABLES TO TERMINATE AT THE CC?..if yes...then no problem, what is the guage of the cable he used?.

2ndly..ur charge controller may be defective

3rdly..some panles may be defective, thus reducing your harvest. you may need to check each panel one by one.

for such a serious setup..i wonder why he didnt use a high end or mid range charge controller?....the cc he used is relatively unknown,, and he has no reason to use such a cc...for such an expensive setup as yours.

would suggest u borrow a known good charge controller epsolar/morning star/midnite solar etc...n hook up to ur set up. if no change...then check ur panels one by one.
first of all check ur cabling..and confirm the guage, better still send a pic of the panel cables going into the CC

Yes earthrealm, I stated same few hours ago .. A clear pics of his set-up will help as the op said it was installed by a "professional"... When people drop posts with pictures , it helps better in identifying physical problems tho. Troubleshooting takes a lil time but if all is right, he enjoys his set-up like others ..why few clients run from combiner boxes is cost i guess & extra cables in quote.. I do more of improvised combiner boxes which is affordable.. Thanks for your input once again !

emmaniche:
House please help review these inverters. Thanks.

Emerson CP 70i 01 20 KVA 110V Inverter

Kevin DSP Sine Wave ALBS 20 KVA 240V Inverter

U ll shoot ursef in the leg using the Emerson, as it does nt support our country voltage, while Kevin is an Indian brand, it uses more ba3, as opposed to the normal 48v,wch means more backup but ll giv u headache if u want to go solar,... Why don't you try our Felicity inverters, with good customer services, warranty, and service centers here in Nigeria. This ll giv u ease of repair services incase anytin happens(they are fast abt it too, I took an inverter there, and it was repaired or spot without charges, jst under 40mins).

Call/watapp 08117398294 to order... Tx

Dam5reey:


After checking through this https://pvoutput.org/list.jsp?userid=46221

Seems he does not need to worry to much... Unless he has spare cash to get Better CC...

He still needs a cc for upgrade, so he can't escape the cc tin

Justin288:
Thanks @kiekie1 for the shipment of the batteries down to Port Harcourt. All the batteries tested ok.

I sight you .. Good to know you still flexing your batteries ! Cheers

Dam5reey:


yes I'm aware but 1kw should be able to do 800watts conveniently.. I only made an example.. why ratings on appliances are important


I'm not talking about Chinese ratings... That will rate the Inverter it's peak power, instead of continuous power, those are the Little things we should take note when buying electronics.. cheers

That's y u got it at a cheaper price, if u want the one u r talking abt, u ll get it four times the chinko price, instead of blaming the chinko, get a higher rated chinko, or quadruple ur moni and buy a U.S product, trust me if you do the later, fear won't allow u load it 800w sef ... Hp u get my point

zeestone99:


That's y u got it at a cheaper price, if u want the one u r talking abt, u ll get it four times the chinko price, instead of blaming the chinko, get a higher rated chinko, or quadruple ur moni and buy a U.S product... Hp u get my point

We are saying the same thing...

My point was the importance of rating at the back of Panels VOC, ISC, Imp Vmp and so on.. thanks

I occasionally use my 1k watt Inverter for Ironing, I understand all your points

olagunju2000:


Thanks to everyone. All your your argument are very robust and I really appreciate all your thoughts.

My real concern is that I only get about 2400W max instantaneously out of the total install capacity of 4500W. I wanted to know if something is wrong with the panels. I have learnt a lot today about what I need to check on the other elements. The last enquiry is that how am I sure that my panel is doing what it is supposed to be doing. I wanted a way to validate that the problem is not coming from the panel itself. So, I wanted to find out from you experts, if I can validate the panels by checking the Voc and Isc on a sunny afternoon and comparing to the ratings of the panel. Based on all your experiences, will I get a reading (using multimeter) close to the ratings of the panel if the panel is ok ? Or is there another way of finding out if the panels are ok?

Thanks...

Today's peak insolation in Abuja was 600 w/m2 ( as against STC 1000 Watt) and temp was 31 DEG C so if you are getting 55 % of the rated capacity that sounds just right

You can look up the live readings of my personal weather station here - https://www.wunderground.com/personal-weather-station/dashboard?ID=IABUJA3&cm_ven=localwx_pwsdash

aloow some time for the graphs to load or refresh the page

Jamzig1:

Thanks for the links as usual... The first option is the most suitable for this application...But the limitation is that it can be easily bypassed (I guess)

Nope has a password lock

But it is just an 3 pin plug so can be easily removed and plug directly inserted into the socket . But makes a nice loud alarm sound once the load goes above alarm value before tripping the output if the trip threshold is met ( has time to avoid peak spurious triipngs)

I even asked the company if they will make a wired version but no plans yet

if you have money to spend and don't mind tinkering the smart sockets like TPlink and Samsung smart things also have a power threshold alarm and a notification on the phone ( need full time wifi though in house)

kiekie1:


I sight you .. Good to know you still flexing your batteries ! Cheers

Oga which one you dey quote post from May . . . Are you that deceptive?

Dam5reey:


We are saying the same thing...

My point was the importance of rating at the back of Panels VOC, ISC, Imp Vmp and so on.. thanks

I occasionally use my 1k watt Inverter for Ironing, I understand all your points

Yeah noted, it's all important... Cheers