chris81964:

It might have a PWM controller. Verify that and I can give you an answer

Nope it's mppt for sure

NiyiOmoIyunade:
Base load 2kw per hour and surge loads 4 to 5kw when water heaters, microwave e.t.c come on.

Why did I use solar panels to meet above and beyond my current and future power needs - reliability - I have not owned or touched a generator for the last 2 years at least and I am off-grid 95% - use mains electricity to power house loads only if available between 8pm and 3am.

Of all the power sources I have experienced solar power has been the most reliable - I therefore chose it disproportionately over other sources - now on a good day I make too much power and on a cloudy day I make enough power to get by.

The same amount to buy a 20kva Diesel Gen gets me 24pieces of 300w panels and 2 CCs with change to spare and near zero maintenance or fuel costs relative to a generator. So the math checks out for me especially as I am in a position to get panels dirt cheap.

What's the cap of your installed battery?

ojeysky:


Actually the flames I was referring to were tear nylon brand new . I have gotten used 300w from some seller on this thread in the past (won't mention name) but that was before I discovered that new ones are not as expensive out there.

Can u guys help some of us on very tight budgets biko nu.

zellfoxx:


From this your pic, practically no solar radiation is hitting the panels at this time. And its obvious your panel tilt angle is waaaay below optimum. If you are in Lagos, I believe placing them with O° tilt would be best all year round.

Another factor you may have overlooked is one basic principle with long strings. Once there is partial shading on just a single panel in the string, whether via cloud cover or anything else, it drops the voltage of that string to a multiple of the lowest value recorded by that panel. Hence, you are evidently getting the least possible voltage value from the string, even before it gets to your inbuilt mppt cc. That's one reason for avoiding long single strings though.

The last point u gave just righted a design plan in my head.. Lol.

I for just go waste already scarce insolation for my end.
Jah bless bros.

That's why i read almost every post here, whether i need it now or not. No information is a waste ni.

ojeysky:
Thanks @mank1234 @Dam5reey @GeorgeD1 we agree but the issue is that in the morning the sun is on the other side so I just choose one of the sides not knowing that I won't be getting any wattage in the afternoon.

@zellfoxx am not in Lagos, am in Ado-Ekiti by 0⁰ does it mean my roof can't achieve an optimal harvest from sun rise to sun set and will need to setup a standalone?

Bros just make ur panels flat, without anything casting shadows on them from Dawn to dusk otan ni... We are at the equator so flat is ok for you.

ojeysky:


Sure it's over 160v



It's an hybrid with mppt 80A



6 250w bought brand new



Not yet


Overall I think I will try the standalone as earlier adviced, my concern though is that I hope that is the actual problem since that will be an extra investment.

Why not use some kind of props to raise the lower end of your array till a flat level is obtained? Maybe cheaper that way. Iv seen it done so on some of my coy's installations.

Trippledots:


Why not use some kind of props to raise the lower end of your array till a flat level is obtained? Maybe cheaper that way. Iv seen it done so on some of my coy's installations.

I have read that doing that won't help much based on my roof position (the stuff is currently facing the East)

Regards

Trippledots:


Can u guys help some of us on very tight budgets biko nu.

You may send me PM

Apologies if I sound harsh but to DIY properly you have to equip yourself with the right information and tools.

You can't *just choose one of the sides* - your panels ideally should be facing South and if South is not available then West or perhaps East and the ideal tilt/angle should be tending towards nearly flat in this side of the world.

Please download a compass app on yoir phone and determine where your South is and relocate your panels to this direction.

After getting the panel orientation right, please look to your cable gauge - you should be doing minimum 6mm at ~150v - I use 10mm as my minimum gauge - the thicker your cables the better

Next check each panel to be sure it is delivering voltage and amps properly and make sure your panel to panel connections are tight.

Finally please remove the SPD and see if situation improves - some SPDs malfunction or are miscalibrated and start shunting away power at too low of a voltage. It is possible also that your SPD is designed for a lower voltage application than you are using it for although I never studied the spec sheet you posted a while back.

This are some preliminary checks you could do - you want to identify the root cause of your issues before applying any fixes or spending any money so that you don't throw good money away.

ojeysky:
Thanks @mank1234 @Dam5reey @GeorgeD1 we agree but the issue is that in the morning the sun is on the other side so I just choose one of the sides not knowing that I won't be getting any wattage in the afternoon.

@zellfoxx am not in Lagos, am in Ado-Ekiti by 0⁰ does it mean my roof can't achieve an optimal harvest from sun rise to sun set and will need to setup a standalone?

ojeysky:


Sure it's over 160v



It's an hybrid with mppt 80A



6 250w bought brand new



Not yet


Overall I think I will try the standalone as earlier adviced, my concern though is that I hope that is the actual problem since that will be an extra investment.

Turn the load side off. Turn the AC out off. Does it do the same. As for zero watts your mppt on the inverter could be bad. It worked since you added the extra panels. Double check your connections if they are fine suspect the controller. If you have a spare controller test my theory.
An breaker between the controller and the PV is a must. Turn everything off. Turn the PV off. Let the inverter power down. Then turn the inverter on and then the PV. See if the controller wakes up. We have blown à few controllers up connecting directly. We removed the batteries with the PV connected and we got a firework show.

Hi guys.
I have 8 panels of 300watts each, 4 batteries (12volts each) of 200amps each and a 5.5 kva inverter. Can I increase the number of batteries to 6?

ojeysky:


I have read that doing that won't help much based on my roof position (the stuff is currently facing the East)

Regards

ojeysky,
the bolded explains why you initially got a high output on your panels in the morning and it later declined as the
day went by. the sun rises in the east and sets in the west (every solar enthusiast should know this).
by midday, the sun is directly overhead and after that it moves away heading west. if you have your panels facing
east, you are more likely to experience reduced output anytime after midday.
for my own installation, i have my third array facing east but it was a deliberate choice. firstly, my south facing roof space
was maxed out and secondly, i wanted to take advantage of the early morning sun whenever possible. besides, i use
stand alone charge controllers on all my strings so that voltage drop on one string doesn't affect the others...

Pls which battery product is the best that last long , doesn't discharge quick and pocket friendly. My budget is 90k for 12v200amp

harizonal123:
Pls which battery product is the best that last long , doesn't discharge quick and pocket friendly. My budget is 90k for 12v200amp

go and buy alaba battery

3.5kw/48v Fangpusun xtm available at 500k with one year warranty.

JUO:
go and buy alaba battery

Is that a name of a battery product or a place?

Pls is there any supplier for efficient DC orbit fans rated about 15W?
Something like the picture attached that can work with 12V AC-DC adapter

chris81964:

Turn the load side off. Turn the AC out off. Does it do the same. As for zero watts your mppt on the inverter could be bad. It worked since you added the extra panels. Double check your connections if they are fine suspect the controller. If you have a spare controller test my theory.
An breaker between the controller and the PV is a must. Turn everything off. Turn the PV off. Let the inverter power down. Then turn the inverter on and then the PV. See if the controller wakes up. We have blown à few controllers up connecting directly. We removed the batteries with the PV connected and we got a firework show .

Not with the GK from MPPSolar. GK can actually work without battery and the battery is hot swappable. Circuit breaker is needed in case of short circuit however.

GeorgeD1:


ojeysky,
the bolded explains why you initially got a high output on your panels in the morning and it later declined as the
day went by. the sun rises in the east and sets in the west (every solar enthusiast should know this).

Sure at least that am aware of, actually if I had gotten above quite high output I would not have bothered much but like I said, highest I have gotten thus far is 450w.
I am just waiting to get a few bucks to get the alone up and running for now I will live with the low output

NiyiOmoIyunade:
Apologies if I sound harsh but to DIY properly you have to equip yourself with the right information and tools.

You can't *just choose one of the sides* - your panels ideally should be facing South and if South is not available then West or perhaps East and the ideal tilt/angle should be tending towards nearly flat in this side of the world.

Lesson learnt and sure no offense at all it's fine to be harsh to get words out. Wish you were close to my location, would have invited you instead.

Please download a compass app on yoir phone and determine where your South is and relocate your panels to this direction.

I am using solarCT app though the app is suggesting that I tilt towards the North I will follow your suggestion.

After getting the panel orientation right, please look to your cable gauge - you should be doing minimum 6mm at ~150v - I use 10mm as my minimum gauge - the thicker your cables the better

Actually I made sure to use a good cable; it's a 2 core 10mm amoured solar cable

Next check each panel to be sure it is delivering voltage and amps properly and make sure your panel to panel connections are tight.

I will like to do this when I bring down the panels, but can I do the checks with a multimeter? What should I be looking out for?

Finally please remove the SPD and see if situation improves - some SPDs malfunction or are miscalibrated and start shunting away power at too low of a voltage. It is possible also that your SPD is designed for a lower voltage application than you are using it for although I never studied the spec sheet you posted a while back.

I have not even installed the SPD, waiting for my DC breaker to arrive before installing both.

This are some preliminary checks you could do - you want to identify the root cause of your issues before applying any fixes or spending any money so that you don't throw good money away.

Thanks a lot my brother, really appreciate the support and I hope this will be a great testimony for me eventually.

PS: Just in case this has any meaning; today PV input voltage got as high as 197v but then it will sharply go back down to 160v or 150v at times. Perhaps this is due to the shadow thing

mank1234:


Not with the GK from MPPSolar. GK can actually work without battery and the battery is hot swappable. Circuit breaker is needed in case of short circuit however.

Indeed and I even read it has an inbuilt circuit breaker but ofcourse it's always better to have an external breaker.

https://mercurydirect.com.ng/product/mercury-deep-cycle-battery-200ah-12v-elite-200/
try this site 85k for 200ah . forget the proud guys here
@harizontal123

udy821:
https://mercurydirect.com.ng/product/mercury-deep-cycle-battery-200ah-12v-elite-200/
try this site 85k for 200ah . forget the proud guys here
@harizontal123

What did I miss? Proud guys you say? I see a bunch of very helpful guys here offering free solutions to people's problems.

JUO:
go and buy alaba battery

referring to this. very offensive
@mctfopt

harizonal123:

Is that a name of a battery product or a place?

.. are you sure you're a Nigerian? lol

Alaba is a place in Lagos; where you can even see a re-branded version of yourself. Lwkmd4h.

Anyways, for 90k, look for Mpower Battery. it's a Chinese battery, but a good one. They're usually my low-end battery spec (my high end being Exide, Quanta)

I have about 5 clients using Mpower for 2 years plus now and another 2 going for 2years

Try and get it from Airwaves Ltd; they're the main distributors I know.

Another good low-budget option for you is Safepower (Indian) @103k

Cheers

mcTrinity:


.. are you sure you're a Nigerian? lol

Alaba is a place in Lagos; where you can even see a re-branded version of yourself. Lwkmd4h.

Anyways, for 90k, look for Mpower Battery. it's a Chinese battery, but a good one. They're usually my low-end battery spec (my high end being Exide, Quanta)

I have about 5 clients using Mpower for 2 years plus now and another 2 going for 2years

Try and get it from Airwaves Ltd; they're the main distributors I know.

Another good low-budget option for you is Safepower (Indian) @103k

Cheers

God bless you my brother for trying to help low income earners

mcTrinity:


.. are you sure you're a Nigerian? lol

Alaba is a place in Lagos; where you can even see a re-branded version of yourself. Lwkmd4h.

Anyways, for 90k, look for Mpower Battery. it's a Chinese battery, but a good one. They're usually my low-end battery spec (my high end being Exide, Quanta)

I have about 5 clients using Mpower for 2 years plus now and another 2 going for 2years

Try and get it from Airwaves Ltd; they're the main distributors I know.

Another good low-budget option for you is Safepower (Indian) @103k

Cheers

Thanks bro

Jamzig1:
Pls is there any supplier for efficient DC orbit fans rated about 15W?
Something like the picture attached that can work with 12V AC-DC adapter

search for solar fan on jiji.

If you have a DC clamp meter you can do a quick test on the roof without taking any panels down.

First eliminate mains or gen and run off solar and batteries and place a decent load on your inverter. Go up on the roof, set your multimeter to read DC amps and clamp around each panel cable in your string - each panel should be putting out thesame amps as the others in the string e.g with 18amps from the main PV to CC cable, each panel in your setup should be putting out about 3 amps each when you measure around the panel cables - if you see any panel reading close to zero amps or less than the others, first check that the cable connections are secure and if after ensuring a proper connection things do not improve, then such is a suspect panel that should be taken down for further testing.

ojeysky:


I will like to do this when I bring down the panels, but can I do the checks with a multimeter? What should I be looking out for?

Where can I buy long lasting genuine and durable Inverter, batteries, solar panels and charge controllers in Lagos?

ojeysky:


You may send me PM

Done pls

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