tonididdy:

Hi friends thanks so much for your mentions. I really appreciate. I took your advice and studied the first page to know exactly the wattage of panel I would need for my setup.

This is the calculation I came up with according to page 1(i maybe wrong though, forgive my ignorance but I willing to learn and take corrections).

According to page 1,to know the panel or batt3 needed, one needs to know the sum total watts of all appliances expected to be used and hours expected to be used, multiply by 1.2 (this is if we assume to get at least 85% efficency considering no setup is 100%) and then divide that by the number of hours of sunlight got a day... The total is the required wattage of panel needed.

Using this guide, I calculated thus:
TV 60watts X 10hrs usage (5pm to 2am)
Dstv 30w X 10hrs
Fan 30w X 20hrs

Equals 600+300+600
Total 1500wh

1500wh X 1.2 equals 1800wh
To know the panel needed
We divide 1800 by 7hrs (this is the sun uptime, if the sun is best at 10am to 4pm)

1800wh/7= 257w.

This means I need a 257w panels to supply energy at my given time and my setup has 300w panels.

BUT in all of this, why don't I get full charge after 7hrs of sunlight? Does this mean my panels may not be giving 300w supply to the batteries?

your system will likely fail if you use 7hrs to calculate as the sun is never at its peak for seven hours, I personally use 4 hrs of sunlight for my calculations.

Topmost11:


If someone refuses to pick my calls again, i see no reason why i should hide his/her identity.
There is a seller on this platform whose after sales service is minus zero. I learnt he will even insult you if you disturb him too much. I read about him on another forun on nairaland. His name is promininent on this platform as well. Only thing is you have been transacting business with him for years without problem. What now happened?

One reason why this thread still enjoys continuous survival is that we have near zero tolerance cheating particularly supplying wrong items not specifically demanded for (usually items beneath price paid for despite paying over bloated prices all the same).

However, I will advice you contact another installer to check your PV. There could be many reasons why your PV is still outputing 2 amps inspite of SunDay. You could even have a full battery sef.

When you have exhausted all your checks and possibly redemption. Nothing STOP YOU from letting the house know the dubious person SO THAT WE CAN OSTENTATIOUSLY ACT and blacklist him before he tarnishes other honest marketers or innocent hobbyist/diy who may fall victim on daily basis to such devilish cheating acts he calls business.

Letz get value for money before Nigerians loose faith in renewable sources due to these act wickedness!

ORDER YOUR'S NOW!

Axpert 12v 1.2kva pure sinewave inverter . This durable and efficient power system just needs a 12v battery to operate your electronic gadget be you in a room apartment or 2 rooms apartments ! It outputs 840w total watts and can power up a refrigerator & semi automatic washing machines under users preference .. It's tested and trusted , it outputs pure 220vac & doesn't humm on fans / home theatres neither does it distort satellite receivers etc... It's also compatible with 2.5 or 3kva generator sets .

Features:
-Very low 10/17 watts idle consumption
- 10/20a adjustable charge current
-User friendly LCD
-Pure sinewave output synonymous to grid supply
-Efficiently powers your personal computer set
-Fast transfer time
-Thermostatic inbuilt cooling fan

Price: N50,000

Feel free to place your order now!

WHATSAPP::: https:///2348170385620

Contact,
Smartcellglobal services
081-350-319-51

I have 250*2 solar panel, 3 100amps battery.
Last pure sine wave I bought last 1 hour. It drains my battery. I had to get 15k one which last all day.
Which brand of 1kv pure sine wave inverter should I upgrade to?

This means I need a 257w panels to supply energy at my given time and my setup has 300w panels.

BUT in all of this, why don't I get full charge after 7hrs of sunlight? Does this mean my panels may not be giving 300w supply to the batteries?


[/quote]


Now you are seeing things for yourself. You sre right in your calculations.

Why you dont have 100% is the nigerian factor. You cslculated efficiency at 80%(why you multiplied by 1.2 and not 1). The panels you bought that says 150 watts may actually be 100 watts or even less becsuse it is chinko and not genuine; for example, highest i have ever recorded from my 4×150 panels is 23 amps when i should have nothing less than 32amps(8×4). Same msy be happening to your setup. Which is why i sm adding two more panels even though i have almost exhausted the theoretical capacity of my cc. Totsl is 780 and i am at 600. But actual readings says otherwise.

In your csse, wire size, wire lenght, panel tilt/position, panel actual cspacity(ss against declared), system efficiency etc may be a factor. So you will have less thsn the 300 watts. If i were you, i will still add one more panel.
But then i am someone who has very good shock absorber o. I mske error, push it aside and move on: lesson learnt, life must go on, even if it takes months to recover. I take calculated risks. I look at worst case scenarios, then damn the consequences. Yet my take home is under 100k monthly. Ali express and alaba sre my friends not the sellers here. Do you have that kind of mindset?

Haven said all, i am a novice and know nothing o. Let the gurus here give their opinion when they have time.

Gurus, pls help a desperate brother before he makes mistake o, money no easy to come by.

efuro:


One reason why this thread still enjoys continuous survival is that we have near zero tolerance cheating particularly supplying wrong items not specifically demanded for (usually items beneath price paid for despite paying over bloated prices all the same).

However, I will advice you contact another installer to check your PV. There could be many reasons why your PV is still outputing 2 amps inspite of SunDay. You could even have a full battery sef.

When you have exhausted all your checks and possibly redemption. Nothing STOP YOU from letting the house know the dubious person SO THAT WE CAN OSTENTATIOUSLY ACT and blacklist him before he tarnishes other honest marketers or innocent hobbyist/diy who may fall victim on daily basis to such devilish cheating acts he calls business.

Letz get value for money before Nigerians loose faith in renewable sources due to these act wickedness!

like I posted earlier, the more you look, the less you see. I will prefer to buy direct from company if possible. Alaba guys have all stickers you can imagine. from bottom to top. thinking of making my own panels by my self soon.

solasola:

from the little I deduce, your system is running very well. dod is around 50-40%, so why do you want to add more panels?.Check you cc manual for the max current.

Thanks sire.
From the explanations on the first page but using a calculation of 6hrs sunlight. I need 350w panel to sufficient provide my needed wattage hours. This means I may need an extra 150 or 100w panel.

Insert is my CC details.

Topmost11:


This means I need a 257w panels to supply energy at my given time and my setup has 300w panels.

BUT in all of this, why don't I get full charge after 7hrs of sunlight? Does this mean my panels may not be giving 300w supply to the batteries?





Now you are seeing things for yourself. You sre right in your calculations.

Why you dont have 100% is the nigerian factor. You cslculated efficiency at 80%(why you multiplied by 1.2 and not 1). The panels you bought that says 150 watts may actually be 100 watts or even less becsuse it is chinko and not genuine; for example, highest i have ever recorded from my 4×150 panels is 23 amps when i should have nothing less than 32amps(8×4). Same msy be happening to your setup. Which is why i sm adding two more panels even though i have almost exhausted the theoretical capacity of my cc. Totsl is 780 and i am at 600. But actual readings says otherwise.

In your csse, wire size, wire lenght, panel tilt/position, panel actual cspacity(ss against declared), system efficiency etc may be a factor. So you will have less thsn the 300 watts. If i were you, i will still add one more panel.
But then i am someone who has very good shock absorber o. I mske error, push it aside and move on: lesson learnt, life must go on, even if it takes months to recover. I take calculated risks. I look at worst case scenarios, then damn the consequences. Yet my take home is under 100k monthly. Ali express and alaba sre my friends not the sellers here. Do you have that kind of mindset?

Haven said all, i am a novice and know nothing o. Let the gurus here give their opinion when they have time.

Gurus, pls help a desperate brother before he makes mistake o, money no easy to come by.

I enjoy to read from you bro and would love to read from everyone else too.

Yes you are right, going by what I read on page 1 that a 100w panel is actually producing way less than 100w considering quality factors.

In that note I calculated my panels of 150w will "maybe" Actually be producing 112w this means I have 112+112w and my calculations later on says I need 350w ( I reduced the sun hours to 6hrs against 7hrs earlier used and used an efficiency of 0.75 (75%).

This means my setup still needs an extra 126+wattage... Using 6hrs of sunlight.

Correct me if I am wrong but this boils down to my question. Using my provided details of my CC, can she carry 3panels with a sum of 450w according to company labels? Even tho calculation says they are 112w each (making a total of 336w).

tonididdy:

I enjoy to read from you bro and would love to read from everyone else too.

Yes you are right, going by what I read on page 1 that a 100w panel is actually producing way less than 100w considering quality factors.

In that note I calculated my panels of 150w will "maybe" Actually be producing 112w this means I have 112+112w and my calculations later on says I need 350w ( I reduced the sun hours to 6hrs against 7hrs earlier used and used an efficiency of 0.75 (75%).

This means my setup still needs an extra 126+wattage... Using 6hrs of sunlight.

Correct me if I am wrong but this boils down to my question. Using my provided details of my CC, can she carry 3panels with a sum of 450w according to company labels? Even tho calculation says they are 112w each (making a total of 336w).

errrm, lemme help you here, go and dust all your panels and make sure they are clean, then btw 11am and 1pm, at full sunlight, go and turn on your tv, fan etc..even fridge..i want the total load to be abbove 370w, then look at your instantenous harvest, note the value, and tell us..
use 4 to 5hrs of sunlight, thats the standard here. most people rarely even hit 500% of their installed capacity. eg what i do is..assume i have 400w panel, the avg daily harvest on sunny days would be btw 1kwh and 1.6kwh

in one of my setups, i hv 8 x 250w panels on a 24v setup, 60amp mppt cc, even though the theoritcal limit is 1600w/60amps , its only few times in the rainy season that i hv hit 60amps output from the cc, and the cc doesnt allow the harvest to exceed 60amps, and it has been running ok for over 2yrs now, so oversizing by upto 120% is usually factored in most cc, it would simply dissipate the excess energy, the few times you get max harvest, so theoritically, you can put 470w on ur cc rated 390w, zero issues....unless ur cc is the worst of the worst kind, nuthing bad go happen.

my only concern is the Voc of the cc, do not exceed it, as most cc can forgive you when oversized, but wont forgive when you exceed their Voc

edit: i saw the Voc as being 50v, na there wahala dey, i guess ur 150w 12v panel has Voc of 18v, thus you cant put then in series, as it would be 54v Voc, ur only option is to run them in parallel @ 18v, and that defeats the mppt fxn of the cc, and would require thicker cables as well, what best suits ur scenario is 2 x 230w 24v panels in parallel

tonididdy:

Hi friends thanks so much for your mentions. I really appreciate. I took your advice and studied the first page to know exactly the wattage of panel I would need for my setup.

This is the calculation I came up with according to page 1(i maybe wrong though, forgive my ignorance but I willing to learn and take corrections).

According to page 1,to know the panel or batt3 needed, one needs to know the sum total watts of all appliances expected to be used and hours expected to be used, multiply by 1.2 (this is if we assume to get at least 85% efficency considering no setup is 100%) and then divide that by the number of hours of sunlight got a day... The total is the required wattage of panel needed.

Using this guide, I calculated thus:
TV 60watts X 10hrs usage (5pm to 2am)
Dstv 30w X 10hrs
Fan 30w X 20hrs

Equals 600+300+600
Total 1500wh

1500wh X 1.2 equals 1800wh
To know the panel needed
We divide 1800 by 7hrs (this is the sun uptime, if the sun is best at 10am to 4pm)

1800wh/7= 257w.

This means I need a 257w panels to supply energy at my given time and my setup has 300w panels.

BUT in all of this, why don't I get full charge after 7hrs of sunlight? Does this mean my panels may not be giving 300w supply to the batteries?

This is where you got it wrong, when calculating panel sizing, you add your energy needs to your battery charging needs, you need at least 500watts of solar power(assuming you use your battery to 50% DOD) for your battery to be fully charged before sundown if you want to power your appliances while charging

oliyeniun:
Hi House,

I bought a set of panels from a renowned and respected person on this forum known for warning against fake solar panels and accessories. i have transacted business for a long time with this said person and had no cause to doubt his integrity. however my last transaction with him gave me reasons to question his business dealings with me as shady as i ordered for panels (three 250 Watts) and he told me he was sending flames panels which he got direct from the company.

Unfortunately, when the panels came, there was no indication that it was a flames panel and the installer confirmed same. as at 1pm, i was getting less than 2Amps current on a single panel and it was quite sunny. Since then the person has cut off all communications with me as he was also trying to get kickback from the installer (which i got to know about later and refused to work with his agreement), this is after overpricing[color=#990000][/color] even the logistics of how the items got to me.

please i am just curious, is it possible to buy a flames panel without the sticker indicating that it is flames? is there anyone with sample picture of how flames panels look? thank you

Young man, stop acting like a sisy. Someone here cheated you or attempted to cheat you. Then choose to stop picking your calls. Instead of naming and shaming him, you are here doing someone reputable here.

Kiekie, your time will come when we ll run you outta Nairaland. I have had personal dealings with you too and you are arrogant, proud, dubious, non-chalant and rude. You are only interested in the next sale and the profit. After that, you dont give a damn. There are now too many sellers on nairaland to even consider Kiekie AKA Mrsdaniel.

Nairalanders, avoid kiekie for your peace of mind. There is juo, zeestone, niyi, solardepot and quite a lot more reputable and civilized sellers on here.

A word is enough for the wise.

Penuelseun:
This is where you got it wrong, when calculating panel sizing, you add your energy needs to your battery charging needs, you need at least 500watts of solar power(assuming you use your battery to 50% DOD) for your battery to be fully charged before sundown if you want to power your appliances while charging

Thanks so much for your mention. Do you think my CC can withstand 500w Panel?

earthrealm:


errrm, lemme help you here, go and dust all your panels and make sure they are clean, then btw 11am and 1pm, at full sunlight, go and turn on your tv, fan etc..even fridge..i want the total load to be abbove 370w, then look at your instantenous harvest, note the value, and tell us..
use 4 to 5hrs of sunlight, thats the standard here. most people rarely even hit 500% of their installed capacity. eg what i do is..assume i have 400w panel, the avg daily harvest on sunny days would be btw 1kwh and 1.6kwh

in one of my setups, i hv 8 x 250w panels on a 24v setup, 60amp mppt cc, even though the theoritcal limit is 1600w/60amps , its only few times in the rainy season that i hv hit 60amps output from the cc, and the cc doesnt allow the harvest to exceed 60amps, and it has been running ok for over 2yrs now, so oversizing by upto 120% is usually factored in most cc, it would simply dissipate the excess energy, the few times you get max harvest, so theoritically, you can put 470w on ur cc rated 390w, zero issues....unless ur cc is the worst of the worst kind, nuthing bad go happen.

my only concern is the Voc of the cc, do not exceed it, as most cc can forgive you when oversized, but wont forgive when you exceed their Voc

edit: i saw the Voc as being 50v, na there wahala dey, i guess ur 150w 12v panel has Voc of 18v, thus you cant put then in series, as it would be 54v Voc, ur only option is to run them in parallel @ 18v, and that defeats the mppt fxn of the cc, and would require thicker cables as well, what best suits ur scenario is 2 x 230w 24v panels in parallel

Thanks but sadly I am confused even further. I give up, am just worried a system I setup for 200k should last long.
I have a feeling the installer just zapped in and out hurriedly.
Please if any DIY NL is in Benin city, please chat me up.

tonididdy:

Thanks but sadly I am confused even further. I give up, am just worried a system I setup for 200k should last long.
I have a feeling the installer just zapped in and out hurriedly.
Please if any DIY NL is in Benin city, please chat me up.

OH I SEE, the installer installed a flooded battery for you!!. hope he taught you how to maintain it. to get the best out of most flooded batteries, the bulk charge voltage shud be upto 14.8v. am fairly certain the installer didnt programm ur cc like that. is the manual of the cc available? is it mppt? or pwm?
i could get someone to go chk up on your system if you are within a 5mile radius from ring road/obas palace, send me a pm if so

edit: i see ur cc is a pwm, hmmm, thats a budget setup, maybe you would have saved 20k to 40k, doing it yourself, if you had the determination& knowledge to diy
inverter - 20k/25k
flooded battery 90k- 105k
cc pwm : 7k to 15k
150w panel 13k to 20k each
6mm cables/change over say 15k

earthrealm:


OH I SEE, the installer installed a flooded battery for you!!. hope he taught you how to maintain it. to get the best out of most flooded batteries, the bulk charge voltage shud be upto 14.8v. am fairly certain the installer didnt programm ur cc like that. is the manual of the cc available? is it mppt? or pwm?
i could get someone to go chk up on your system if you are within a 5mile radius from ring road/obas palace, send me a pm if so

edit: i see ur cc is a pwm, hmmm, thats a budget setup, maybe you would have saved 20k to 40k, doing it yourself, if you had the determination& knowledge to diy
inverter - 20k/25k
flooded battery 90k- 105k
cc pwm : 7k to 15k
150w panel 13k to 20k each
6mm cables/change over say 15k

Hi good morning.
I would really love to have someone else check up the system installed and give a judgement. I can pick up this person around ring road to and fro (all expenses paid). Please.
I can't send PM,my email is no longer connected. Pls how else can I contact you for this pls.

tonididdy:

Hi good morning.
I would really love to have someone else check up the system installed and give a judgement. I can pick up this person around ring road to and fro (all expenses paid). Please.
I can't send PM,my email is no longer connected. Pls how else can I contact you for this pls.

drop ur nos or email, he wil contact you and arrange a date to visit ur site. confirm wch area, the installation is located. what distancce/duration from ring road

2ndly, hv the manual of the CC handy!!!

earthrealm:


drop ur nos or email, he wil contact you and arrange a date to visit ur site. confirm wch area, the installation is located. what distancce/duration from ring road

2ndly, hv the manual of the CC handy!!!

This is my email diddylala2014@gmail.com, please write to me so we can exchange contacts.

I had to go dig up the manual from the thrash
I await your contact soonest. Shalom

kiekie1:
ORDER YOUR'S NOW!

Axpert 12v 1.2kva pure sinewave inverter . This durable and efficient power system just needs a 12v battery to operate your electronic gadget be you in a room apartment or 2 rooms apartments ! It outputs 840w total watts and can power up a refrigerator & semi automatic washing machines under users preference .. It's tested and trusted , it outputs pure 220vac & doesn't humm on fans / home theatres neither does it distort satellite receivers etc... It's also compatible with 2.5 or 3kva generator sets .

Features:
-Very low 10/17 watts idle consumption
- 10/20a adjustable charge current
-User friendly LCD
-Pure sinewave output synonymous to grid supply
-Efficiently powers your personal computer set
-Fast transfer time
-Thermostatic inbuilt cooling fan

Price: N50,000

Feel free to place your order now!

WHATSAPP::: https:///2348170385620

Contact,
Smartcellglobal services
081-350-319-51

Boss, patiently waiting for your used batteries deals..

The old batteries self no want to give up.. still enjoying the full river of about 3 years ago

moneymind:
1.5kva Luminous Hybrid Inverter: N50,000

I got this deal.

Idle current is just 26Watts, Effeciency at 60% load is 90+%

My FlexMax 80 was displaying 0V and when I switched off the PV breakers and read the PV wires and they were reading fine and on it back on FM 80 started up again but still displays 0V as input. Output correctly displaying from batteries. House is powered normally thru battery bank and generator. Checked input wires : no input until I unplugged only the positive wire from the Flexmax system again and it was reading 112V. When plugged back: displaying 0V and meter shows no voltage. Trouble seems to be within FM80. Is like the PV input is shorted. I will like to know the possible component that gets shorted in order to fix it asap.
What could it be?
Thanks.

Intellab:
I have 250*2 solar panel, 3 100amps battery.
Last pure sine wave I bought last 1 hour. It drains my battery. I had to get 15k one which last all day.
Which brand of 1kv pure sine wave inverter should I upgrade to?

Microtek or genus inverter

60amphs Epever MPPT charge controller is available, #135000. Contact us on 08168986461

tonididdy:

This is my email dd4@gmail.com, please write to me so we can exchange contacts.

I had to go dig up the manual from the thrash
I await your contact soonest. Shalom

Ok email sent, you may edit ur email addy .

Dam5reey:


Boss, patiently waiting for your used batteries deals..

The old batteries self no want to give up.. still enjoying the full river of about 3 years ago

Happy New year Sir ! Yes i will surely keep you updated when I have new stock .. Regards to the family

PROMO/FLASH SALES! ALL BRAND NEW WITH WARRANTY!!

1) Axpert 1.2kva 12v pure sinewave lcd inverter ..50000

2) Schneider 1.5kva 24v Solar/hybrid pure sinewave inverter ... 71,000

3) Axpert 3kva 24v 1500w solar/hybrid pure sinewave lcd wall mount inverter with inbuilt 80a total charge current .... 110,000

4) Gennex 3kva 24v 1500w mppt hybrid pure sinewave inverter with inbuilt 90a total charge current.... 185,000

5) Quanta 12v 200a battery "white carton" ... 123k , Brown carton ...118k (Datasheet available_All same Indian manufacturer)

6) Monbat 12v 200a batteries ... 120k "expecting stock"

7) USA Trojan 12v 205a sealed AGM battery ... 164k

USA Trojan 12v 225a tubular/flooded battery... 140k

9) USA Trojan 6v 315a sealed AGM battery .... 150k

10) USA Deka 12v 210a sealed battery ..... 185k

YOU CAN PICK UP IF BASED IN LAGOS OR SIMPLY PLACE YOUR ORDER FOR WAYBILL NOW!


Contact,
Smartcell global services
081-350-31951
WHATSAPP::: https:///2348170385620

@kiekie1 Your truly legit. Thanks so much for honoring the inverter battery warranty even when the company was messing up, you ensured I got the batteries from them You've been truly amazing even when I was angry and lost my patience on several occasions you kept your cool at all times. I really appreciate it. Will recommend you to more peeps

Kexs:
@kiekie1 Your truly legit. Thanks so much for honoring the inverter battery warranty even when the company was messing up, you ensured I got the batteries from them You've been truly amazing even when I was angry and lost my patience on several occasions you kept your cool at all times. I really appreciate it. Will recommend you to more peeps

Predictable counter move... .

jmaine:


Predictable counter move... .

kiekie1:


Happy New year Sir ! Yes i will surely keep you updated when I have new stock .. Regards to the family

Stop deceiving yourself. You can only fool as many people with your fake reviews. I ll continue to enlighten people as to your dubious nature.

Your likes shouldn't be on this thread.

Kexs:
@kiekie1 Your truly legit. Thanks so much for honoring the inverter battery warranty even when the company was messing up, you ensured I got the batteries from them You've been truly amazing even when I was angry and lost my patience on several occasions you kept your cool at all times. I really appreciate it. Will recommend you to more peeps

Fake people and fake reviews. I ll stop short of calling Kiekie a scam but he has the worse attitude of all the sellers on here. The more you attempt to push false reviews, the more the truth about your person will be revealed. We have not forgotten how you sold a used morningstar charge controller to Niyi as brand new!

A simple search on nairaland will reveal your true person so quit trying.

A seller who is accused of all these allegations should defend himself to safeguard his business interests.

jmaine:


Predictable counter move... .

Mrsdaniels comes to mind