mctfopt:


I've bought four units of 380w from them. I don't know where people get that they don't sell in smaller units from.

they misunderstood.

Also was it jinko you got,?

Cus I was told not available for now

Ie the 550watts though

Guys is yingli as good. As jinko is not available for me.

YINGLI is a very good panel!

mank1234:


I need the quoted. I dropped message whatsapp for you.

Thanks for the order.

drizzypat:
no that number was distributor of jinko in nigeria I think

Techland said they don't have

Maybe some misunderstanding or a new policy
but that's Techland's number.

Please, i need 3.2v 50ah, 100ah, lifepo4 cell grade A and Daly BMS 12v, 24v

WhatsApp 08175528343

Muraino19:
Please, i need 3.2v 50ah, 100ah, lifepo4 cell grade A and Daly BMS 12v, 24v

WhatsApp 08175528343

Contact @Valto

Guys I’ve decided to sort it myself as advised.

I’ve brought the two panels down from the roof and washed them this afternoon. Turns out they are 145w each. Don’t know what the other ratings on their backs mean. Check attached images.

The problem might be from the panel orientation as suggested, so I’m trying to see if I can test them from the floor while positioning their surfaces against the sun. I’ve also bought a multimeter to do so; the only problem is I don’t know how to read meters.

I’ll give feedback on what the meter reads

What amps or voltages should I look out for to know if the panels are generating enough power?

Also attached is the cable used to connect the panels and the meter I bought

Please help me as I try this DIY method

Jefferyzz

Valto:
YINGLI is a very good panel!

Seconded. My first option if i am not going for premium solar panels like Jinko, Canadian Solar, Trina.

Hi guys, i just noticed my tubular batteries 24v connection is not charging via solar, i have 4 405w sunpower and a 40A suoer mppt, which has been performing very well. The voltage from the panels connected in 2s2p is between 60v and 90v. The amps from the panels is 1.2A at the charge controller and battery voltage is 23.9. Inverter went off last nite and i wondered why. I found out this morning that its not charging at all.

What could be the cause of this? Any ideas pls??

Irwindickson:
Hi guys, i just noticed my tubular batteries 24v connection is not charging via solar, i have 4 405w sunpower and a 40A suoer mppt, which has been performing very well. The voltage from the panels connected in 2s2p is between 60v and 90v. The amps from the panels is 1.2A at the charge controller and battery voltage is 23.9. Inverter went off last nite and i wondered why. I found out this morning that its not charging at all.

What could be the cause of this? Any ideas pls??

You need to supply more information to get the best advise.

What is the voltage of the battery when it is charging, study the battery for some time and note down the voltage range. A charging tubular battery in bulk state of charge ( the first charging stage) should be between 25v - 27v. The absorption stage (the second charging stage) should be between 28v - 29v depending on how the charger is configured. The second stage means the battery is at 80%+ full. The last stage is when the battery is fully charged and here voltage drops down to 27v.

Your solar charger determines the charge voltage profile for your battery it is how you can also determine if your batteries are charging properly.

Forrkke:
Guys I’ve decided to sort it myself as advised.

I’ve brought the two panels down from the roof and washed them this afternoon. Turns out they are 145w each. Don’t know what the other ratings on their backs mean. Check attached images.

The problem might be from the panel orientation as suggested, so I’m trying to see if I can test them from the floor while positioning their surfaces against the sun. I’ve also bought a multimeter to do so; the only problem is I don’t know how to read meters.

I’ll give feedback on what the meter reads

What amps or voltages should I look out for to know if the panels are generating enough power?

Also attached is the cable used to connect the panels and the meter I bought

Please help me as I try this DIY method

Jefferyzz

From the panel label you posted, I would not use those panels with the charger you are using. The panels have an open circuit voltage of 24.9 this is the voltage when no load is connected. The problem is your charge controller has a max PV input voltage of 50v which means when you connect your panels in series you are already at the limit of the voltage the panel can take.. under certain condition the panels can damage the charge controller.

Regarding panel orientation, the best orientation to place a panel in Nigeria is south..you can use a phone compass app to determine where south is and install the panels on the part of the roof that faces south.

Ensure that your panels have clear and unobstructed view of the sky, no trees or structure blocking or casting shadow on the roof.

If the south side of your roof is not accessible, then from my experience east or west can work. If helps if you have a flatish roof and not one of those steep send down the rain roof.

There are lots of videos on YouTube on how to use a multi meter that would explain the basics of solar panel installation you might want to do more research or get a good installer.

bigrovar:


From the panel label you posted, I would not use those panels with the charger you are using. The panels have an open circuit voltage of 24.9 this is the voltage when no load is connected. The problem is your charge controller has a max PV input voltage of 50v which means when you connect your panels in series you are already at the limit of the voltage the panel can take.. under certain condition the panels can damage the charge controller.

Regarding panel orientation, the best orientation to place a panel in Nigeria is south..you can use a phone compass app to determine where south is and install the panels on the part of the roof that faces south.

Ensure that your panels have clear and unobstructed view of the sky, no trees or structure blocking or casting shadow on the roof.

If the south side of your roof is not accessible, then from my experience east or west can work. If helps if you have a flatish roof and not one of those steep send down the rain roof.

There are lots of videos on YouTube on how to use a multi meter that would explain the basics of solar panel installation you might want to do more research or get a good installer.

Thanks for the prompt response. It’s concise and eye-opening.


Regarding the panels and controller, what do you suggest I do?

Is the cable used for the connection okay? I attached a picture of it up there

What should I look out for on the meter when testing the panels? Like the ideal outputs to know each is bringing enough power

Thanks once again

Hybrid600:
It MAY just be a new policy that has been implemented.
Same for a distributor shop I get things from, they just recently changed policies in regards to bulk purchases and no more one one single purchase.

My friend made a purchase this week. Unless the change was from today.

drizzypat:
they misunderstood.

Also was it jinko you got,?

Cus I was told not available for now

Ie the 550watts though

My friend just got the 380w, didn't ask for the 550 as it may be unavailable

GeorgeD1:


skalamanga,
the solar business is a serious one for people thinking more about positioning themselves for a future of energy independence in a society where public power is getting more epileptic by the day even as more funds are poured into the sector.

in this country as of today, when people talk about power and they think of alternatives to phcn, they think generators. so when you compare solar to generators you may be tempted to think solar is too costly. however that is only true with respect to short term projections. in the long term, the seemingly higher cost of solar pales into insignificance when compared with the huge cost savings of not having to run generators say over a 25yr period.

lets do the maths:
personally i have a 5kva petrol generator and when i was running it almost everyday, a 30ltr can of petrol will be used up in a week and that is talking of a maximum 4 hours everyday. anything more than that and the 30litres will not even last that long. there are people who have generators double that capacity and who run them for twice that lenght of time and its your guess how long a similar volume of fuel will carry them.

but lets concentrate on my own experience:

30ltrs in 1 wk is roughly 10 litres/day.
1month = 300litrs
at the present pump price of 65naira/ltr, it becomes: 300*65= 19,500 naira
in a year that amounts to: 19,500*12 = 234,000 naira
assuming pump price remains the same (which will be virtually impossible), in 25yrs, we'll have spent:
234,000*25 = 5,850,000 naira.

now, that's putting it mildly because i haven't accounted for the cost of servicing and repairs of the generator (i'e oil changes, filter, fuel pump). also, there's no guarantee that any generator no matter how rugged will last that long. averagely you'll have to change that gen once every 5 to 6 yrs depending on the brand.
then how do we factor in the constant inconvenience of noise, smoke, etc? when there is fuel scarcity you must get fuel by all means if you must have electric power so sometimes you end up siphoning fuel from your car's tank into your generator and a few times you may even suck in and swallow some of it!

now, when you compare all this to the advantage solar gives you, the higher costs does not seem so high afterall. the secret to it is starting on a small scale. you start with an inverter and battery bank. after a while you then add solar modules to your system. that way the cost wouldn't be as prohibitive as it appears from the start.

for those who have built houses before, if you were to start from day one and look at the overall cost of building that house from foundation to the last pin, the cost alone would be intimidating but when you learn to take one step at a time, you'll discover that in no time, what you thought impossible has become a reality and so it is with a solar system.

About 13 years ago!

GeorgeD1:


the above charging algorithm is just one out of many salient features that sets morningstar (tristar) cc
head and shoulders above the pack. you can't go wrong with that charge controller. it may appear to
be pricey but it pays off in the long run when you keep using your batteries year after year while others
have changed their battery banks 3x in a row.

Thank you!

GeorgeD1:


there's really no need for name-calling here, i think.
you have to remember that we are all here for one purpose - energy freedom (or so i think)
what myself, samnaija and others are trying to tell up and coming solar enthusiasts is that you know what?
before lithium came onboard, there was lead acid. you don't have to be straight-jacketed into one type of battery chemistry.
you have options.
for all the draw backs of lead acid, namely:
1) it occupies space - not everyone is space constrained (many aspiring renewables enthusiasts might be living in their own
houses, so space is not an issue for them)
2) it is heavier and not easy to carry - again that may not be a deal breaker for many as long as they don't live a nomadic life.
battery banks are not meant to be moved about once they're installed. even the usual battery rotation is done every 12 or 24
months in some instances.
3) the energy density is lesser than lithium - while this may be true, except you plan to use your battery bank to run an
electric vehicle which has a high current draw, this shouldn't be a problem. if your sole aim is to run your house loads, i doubt
there's any domestic appliance that would require such high current draw which your lead acid cannot cope with.
4) dod of 50 (for lead acid) as against 80 or 90 percent (for lithium) - this also is not a challenge for many as proper battery
bank sizing easily takes care of this.
5) it has shorter life span compared to lithium - while this may be true, we have had lead acid banks lasting way beyond their
projected end of service life with proper system sizing and good maintenance practice. my 2v single cell batteries are projected
to last 15yrs by the oem. even if i'm able to get just 10yrs out of them at the end of the day, it would be a major step forward
for lead.

besides all the above, what we would like the newcomers to understand is that despite the much acclaimed drop in price of
lithium compared to lead acid, on a price per watt basis, lead acid is still a cheaper option.
so, if a person who is contemplating going solar is reading all this and all he is seeing is lithium, lithium and he goes to check
the cost of buying a lithium pack, and then throws in the cost of purchasing an appropriate sized bms with all other bells and
whistles, he gets discouraged and walks away thinking, "you know what, solar is too expensive".

over ten years ago, when we started this thread, we were all grateful for the opportunity to learn by building our systems
from scratch using simple, tried and tested methods. they were cheaper but they got the job done. we want newbies to be
given such opportunities too. they don't have to be teleguided into a particular method or battery chemistry. let them try for
themselves and see what works and what does not. that's the beauty of diy and that is overriding aim of this thread.

if we all are objective in our submissions, there would be no need for name calling. and, if we all are able to achieve our
ultimate goal of energy freedom, it would be a win-win for us all.

break the myth! you know you can!!

You are a great dude, I must say. I like your heart. Blessings!

HIGHLY DURABLE! GET YOURS NOW!!!

Machtig inverter's & battery now available.
Made in INDIA .

Machtig pure sinewave inverter;
1kva 12v ....... 70,000
1.7kva 24v .... 90,000
2.1kva 24v .... 110,000
2.5kva 24v ... 126,000
3.5kva 24v .... 250,000
5kva 24v ....... 450,000

Machtig 12v 220ah tubular battery .... 160,000


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So this is the update, guys
Special thanks to Jefferyzz for teaching me how to do everything narrated below.

I optimized the orientation of the panels today using the compass on my phone, and I got the highest voltage (22.9) from the South and 5.46amps.

Unfortunately, all these only came from the first panel I tested. The second one only returned about 2.9v, with barely any amps displaying on the meter. I called the installer immediately, but he was angry that I’m dismantling the setup, saying if I spoil something I no know, he wouldn’t be held responsible.

How do expect me to wait for you to return to wherever you traveled to for work?

Anyways, I checked online and found something about the diodes being bad. I opened the box at the back of the panel and tested each of the three diodes. Turns out one of them is the culprit, as it wasn’t reading anything on the meter. I’ll find a replacement for it. The diodes are soldered though.

What do you suggest I do from here? Should I test-charge the battery with just one panel while I find a way to fix the other one? I don’t mind buying another one if this one is completely damaged.

Forrkke:
So this is the update, guys
Special thanks to Jefferyzz for teaching me how to do everything narrated below.

I optimized the orientation of the panels today using the compass on my phone, and I got the highest voltage (22.9) from the South and 5.46amps.

Unfortunately, all these only came from the first panel I tested. The second one only returned about 2.9v, with barely any amps displaying on the meter. I called the installer immediately, but he was angry that I’m dismantling the setup, saying if I spoil something I no know, he wouldn’t be held responsible.

How do expect me to wait for you to return to wherever you traveled to for work?

Anyways, I checked online and found something about the diodes being bad. I opened the box at the back of the panel and tested each of the three diodes. Turns out one of them is the culprit, as it wasn’t reading anything on the meter. I’ll find a replacement for it. The diodes are soldered though.

What do you suggest I do from here? Should I test-charge the battery with just one panel while I find a way to fix the other one? I don’t mind buying another one if this one is completely damaged.

Just want to say congratulations.

That is how I started, and when I kept getting into dead ends, I ended up paying for a proper electronics course online and that is how I was finally able to hold my own as far as fiddling with my electronics was concerned.

If you want to change diodes, you will need a soldering iron, you will need to order the exact diodes or the equivalents and then you will need to know how to solder or desolder.

It depends on you and how far you want to go.

I have yet to study PV electronics, but someone said you should consult YouTube on the way to do the above as well.

Alternatively, let someone else do it for you.

But if you have gone this far, I doubt that soldering and desoldering is beyond you.

Take pictures of the offending diodes. That will help us help you find it or its equivalents or betters.

I have done this at other forums with great results

Greetings guys,
Plz I need recommendations good and affordable 100amps mppt charge controller

Ikiriye:
Greetings guys,
Plz I need recommendations good and affordable 100amps mppt charge controller

We have
epever 100a mppt charge controller - 270k

Please House,

I need a complete solar system and inverter to power basic home appliances during the day and can just go for lighting and fans during the night.

Please I wouldn't mind to get to know what they will cost as well.

Thanks in advance

longyemi:
Please House,

I need a complete solar system and inverter to power basic home appliances during the day and can just go for lighting and fans during the night.

Please I wouldn't mind to get to know what they will cost as well.

Thanks in advance

.
Basic home appliances like....
Names and watts of these basic home appliances should be stated.

isangjohnson:
.
Basic home appliances like....
Names and watts of these basic home appliances should be stated.

A TV, 80 watts
Decoder
Sound system
Ceiling fan

Those are what I meant as basi.c home appliances.... Thanks

Ikiriye:
Greetings guys,
Plz I need recommendations good and affordable 100amps mppt charge controller

You can also try out the SRNE 100am Solar Charge Controller - Last price i know of Nov 2022 it was going for around N195,000

Ikiriye:
Greetings guys,
Plz I need recommendations good and affordable 100amps mppt charge controller

2 Units of the king of affordable functional CC - powmr 60amps cc, will be a far cheaper alternative, if you don't need daily harvest logging capabilities

longyemi:


A TV, 80 watts
Decoder
Sound system
Ceiling fan

Those are what I meant as basi.c home appliances.... Thanks

Dear Sir/Madam, your basic is not everyones basic and vice versa hence the previous advise.

two get the wattage (power consumption) of those devices ans state it. people here will generally help but help them too by providing as much information as possible.

How many hours do you intend to use each per day.

Thanks

FEGEITOK:

Just want to say congratulations.

That is how I started, and when I kept getting into dead ends, I ended up paying for a proper electronics course online and that is how I was finally able to hold my own as far as fiddling with my electronics was concerned.

If you want to change diodes, you will need a soldering iron, you will need to order the exact diodes or the equivalents and then you will need to know how to solder or desolder.

It depends on you and how far you want to go.

I have yet to study PV electronics, but someone said you should consult YouTube on the way to do the above as well.

Alternatively, let someone else do it for you.

But if you have gone this far, I doubt that soldering and desoldering is beyond you.

Take pictures of the offending diodes. That will help us help you find it or its equivalents or betters.

I have done this at other forums with great results

Thanks, boss. I really appreciate.

Yes, I know how to solder. Will take a picture of the diode so I’ll know which replacement to get.

Aboki01:
Good evening Oga's in here... Abeg I would like to ask if 400-600k can setup a solar(inverter). I intend powering
1. 5 energy saving bulb
2. 55" Samsung smart TV
3. 2 ox fan
4. A deep freezer and a 95l haier thermocool refrigerator
5. 1 ceiling fan.
Note: The major purpose of setting up the inverter system is for use at night time. From 7pm- Anytime it trips off in the middle of the night.

is the deep freezer still available