₦airaland Forum

Ferdiwar:
10mm for 800w is an over kill.
4mm is ok for it especially if you're doing more of voltage than current.
Some inverters manufacturers are more doing inverters with higher PV voltage and less current with recommendations of 4mm from the Solar panels to the inverter.

Thank you sir

Obnoxious2001:
1.For every electrical system, your aim should be to have a voltage drop of Less than (<3%).

This is the reason why on this forum, some people have complained of their submersible pumps consuming more power than expected.

2. Your ampacity/current from your solar panels (every wire has an ampacity chart you can check it out). If you have a low voltage and a higher current, the more thicker cables you require and vice versa.

I think this is basically all I can contribute on this

Thank you. Do u have a wiring chart i can use?
Panels are connected in series so sud at optimum conditions be getting abt 64v wit about 12amps? Same panel size in 2 different installations having 2kva12v and 4.2kva24v hybrid inverter with both 4mm2 wires coming from the panel. Yet the 4.2 gets higher solar volt input abt 55v compared to abt 30 in the 2kva.

odimbannamdi:
If you can afford 10mm2, perfect. Otherwise, 6mm2 is good too.

Thank you sir. I used to think 10mm2 is an overkill for such small system? But then, is the 4mm a bad choice though?
Do u av a chart or something which I can use and compare. Different things abound in google and its difficult knowing which is right unless one has the basic knowledge.

I av come again with my curiosity. How do u determine the wire guage from solar panel to charge controller. Gone through different sites and seeing different recommendation. Someone recommended 10mm for use wit 800watts panel that 4mm wud be too small yet google gave a max volt/amps of 1000/36 for a 4mm double core wire. Distance is about 5 to 6m. Thank you for ur kind responses

bbeckky:
thanks bro but I heard sachet inverters can't be used with battery, only solar, though I haven't browsed about it because I wasn't really interested

They are actually just connected to the battery to provide AC current. They do not charge so u need an external charger which cud either be via solar or AC

Allem:
odimbannamdi has it contact him

Merry Christmas all.

Thanks, I already did but he said till next month

Rain/wind wont bring it down?

Can anyone recommend a good mppt controller that wont dig a hole in the pocket? The powmr seems scarce of recent. Is must/sunfield a good option or there are better alternatives? Budget is around 70k for a 45-60amp spec. Thanks 🙏

dollarnaira:
Here

Ow long have u had this? What did u use to hold it to the fence as that wud make it easier/hard to steal?

dollarnaira:
It had been modified though

Can we see the recent one. Thinking of of something like this so wud love any similar installation

Over a year of use now and battery is still going strong. Thanks @feflo

feflo:
For enquiries call me on 08023662352 or 08165304602

abbeymighty:
Good day all, please can i connect 4nos of 300watts panels to a 24v , 3kva hybrid inverter that was writing rated power 600watts

Curious, what's the rated power of 600 watts for? Doubt its for the max panel wattage unless its pwm.

bizzibodi:
U mean I cannot add another 550W panel to my existing 550W in future I dnt want to cluster my roof with so many panels.
And supposing I get a 80A charge controller instead Incase of future expansion will it work in my present setup?

So long as its the same watt panel u are using and its cost isnt an issue, its fine. It's wrong to mix different panels on the same CC. Just gave u my own personal opinion abt preferring 300 watt or at most I go the 415/435 way

bizzibodi:
12V,i intend to attach one 550W panel.

It should work. Ur mppt has specifications in terms of maximum current, voltage and watt of the panel so confirm it. I'd advise you get 2 300watts panel for ease of installation and future expansion, u can just keep adding 300watts panel(s) to the existing setup.

bizzibodi:
Pls house SME will 40A mppt solar charge controller be adequate for 2000w inverter with 550w solar panel connected to 200Ah batteries?

Is ur inverter 12v or 24v? Ow many panels are u attaching?

bassdow:
Please kindly do and get back to me.

meanwhile, for a 50inch TV, that would/should struggle on 12-volts Ooo but doesn't hurt trying. Let me know the voltage written at the back of the Tv first.

Hopefully, no be plasma Tv

Back of tv 19.5v 109w
Adaptor output 19.5v 6.2a

bassdow:
How many Volts is written on the back of your Tv ?
I mean the voltage on the back of your TV. if possible, show us a clear image of the back of your TV. Chances are, it's between 21-volts or 19-volts or maybe below.

one of mine is 19-volts, while the other is 21-Volts and both works perfectly.

The connection is very very simple.

I meant it has like a laptop charger pack going into it. Its a Sony 50in smart tv. Would check the back of the tv when i get home.

Where in Ogun state?

pointstores:
You can always buy 14.6v 2a lead acid charger at mushin Idi oro


We build litium and lifepo4 battery that's charges fast with 2hours and you can use for 24hours affordable solar solution also available


Lifepo4 and litium cells @ affordable cost

Training and diy case for laptop and phone fan also available if you are in Lagos or ogun

Training fee on.how to build phone fan led tv powerbank and laptop power available @ 30k 2 weeks training

Anyway you can show us how u connect ur tv directly to the battery here or I private chat you. My TV uses a dc adapter and is like the biggest load on my inverter presently. Thanks

bassdow:
I don't bash or condem Lithium batteries.

Just saying that a lot of these battery packs being advertised are not worth it.

And NO, I don't superimpose my opinion on others.

And yes, it's far easier buying rubbish Lithium when you buy those battery packs than when you jejely buy leadAcid battery. if we could have a couple of Nigerian companies who couple such battery packs using quality cells and parts, I would sing their praises harder.

My major issue is the way and manner they make their wares (e.g batteryPacks) seem like a saint with no single fault annd the best in our lifeTime.


well I didn't wire the entire house on 12-volts. The voltage drop would be crazy even if I choose to wire the house on 48-volts.
what i did is, I have my home office and ma server room and those are the place where I did what I did. still expperimenting on converting a CPU motherBoard to run entirely on 12-volts system with no form of invertion but don't have time to further it. At the moment, most run on 24-volts or directly on 240-volts mains.

My laptops either run on 19-volts (i boost 12-volts to 19-volts) or run it directly on 12-volts like I currently do. Works well for laptops with no centerPin. These are things, that had I found in market, would gladly pay for; and I'm sure a lot more people would.

A single 2-year old 150AH battery currently power 2 core i5 laptops for over 2-days on single charge. Tell me lots of Nigerians wouldn't gladly pay for such should they find it. I searched a lot for such before i decided building one for myself. of course I have had challenges but what good thing doesn't.

So imagine when i find people coupling poor, low quality lithium cells with superCheap PWM chargeControllers, laptop charger into a metalic or wooden box and sell at very high prices. and you exppect I just keep mute. Just so you know, I have never bought such BUT that's because I probably have experience there. How many people are that lucky.

Even when I say certain things here, it's so someone picks up on it and give it a trial.

As we grow, we tend to have less time than we used to. Wetin una dey wait for, na make person suffer put together such circuitry, then the moment una see say people dey buy am, una wey don dey established in the circle, and with more funds, and outlets, would quickly duplicate it and the original person ends up not recouping even their initial expenses.
Common to think out of the box dey hard us. na to copy wetin another person don do we dey like.

those in the business of coupling lithium cells and selling it, could make smaller versions that would power things like TV, laptop, etc for several days on single charge and see if lots of Nigerians won't jump on it.

I can't even use sachet inverter sef because it would give less backUp time than I currently get when I SKIP the inverting stage.

My flatScreen TvMonitor is rated 19Volts but both the 19-Volts TvMonitor, 2 other laptops, and my outDoor Tv antenae are all connected to a single 150AH battery with no inverter. Funny thing is, the external Tv antenae draws power from the USB port of the TvMonitor. All I did was rip out the transformer isnide the Antenae, and wired a USB cable to it and pronto, e dey work, though e no dey rotate but that's of no use to me.
Now imagine one creating a product out of this and tell me it wouldn't sell like hot cake. A lithium battery would be less bulky, while delivering more Amperes per KG of weight.
you could even for a fee, help people convert their existing TVs, gadgets, or make suggestions on the sort to buy that requires no conversion.

if I am to buy a TV today, I look out for those with external power adapter/pack. Even if dem write 21-volts for the body, I go try am for 12-volts becase chances are high, it would work. Even if it doesn't, it's cheaper boosting to the exact voltage, than going from 12/24/36/48 volts to 240-volts, only to have it stepped down again to say 19-volts of which would still be further stepped down again to something much lower.

See eh, when you're good at what you do, even your enemy would have little to no choice than to patronise you because at end of the day, they want and need what you've got to offer. it's because a lot of us are not unique, even the copyCopy sef, we ain't good enough, is reason we struggle so much.

As for PICx, forget am, I'm not here to convinve anyOne. I have given out more free information, than I've gotten. 
Wether anyone believes it or not, na dem sabi BUT should you come here, preaching how you would train people to be 
expert at ForexTrading within 7-days or even 2-Months sef, I no go keep quiet Ooo. I go shout, scream, write 
veryVeryLong epistle, wey no go still make sense to some set of people.

Like someone mentioned, u need to give us an idea of what u want to power and for how long. Also solar installation journey is not something u go all in at once unless you have the capital. U can start wit the inverter and battery and maybe a few panels and then add to the panels later as funds become available.

Masterdazhem:
Guess ill need to up my budget

Go to this link, u wud get all the help u need
https://www.nairaland.com/390522/solar-energy-complement-fta/1523

Thanks everyone for the contribution. Want to set up a low cost 12vsetup for my mum thats why I asked abt difference in pwm/mppt charge. The pwm seems cheaper and within budget but want to be sure if 4 150w panel or 2 300w panel wud give same results with it.
Would also need recommendations for an efficient pwm charger too? Thanks

Pls which would be more efficient charge wise? 4 150watts paired to a pwm or 2 300watss paired to a mppt charge controller for a 12v 200ah battery?

Thank you

dollarnaira:
Good for :
regular led tv
Rechargeable fans
Lights ( regular)
Charging

Bad for:
Smart tv
Regular fans
Flourecent lights
Voltage guards etc

Long term user

odimbannamdi:
While some people are able to get away with using MSW inverters, most people don't. It damaged 2 of my standing fans when I started my renewable energy journey, plus most of your appliances will keep making a humming mentally-unsettling sound.

To be on the safe side, just get a pure sinewave inverter.

Thank you

Long term suoer inverter users, pls whats the experience like? Being seeing some cheap solar packages including it and wondering is its use a smart move or just for cost cutting measures. I feel the modified sine wave it produces is harmful esp to led tvs and fans?

Dobi89:
Good day mamas can somebody who have gone for 2 cs respectively in 2020 and 2021 use virginal delivery by 2024

Once u have had 2 CS, the book recommends another CS. The risks of vaginal delivery after 2 CS isnt worth it unless u have been assessed and in a qualified obstetrics center with excellent emergency services including blood transfusion. The biggest risk is a uterine rupture with subsequent death of the baby if not delivered on time. There could also be massive blood loss with injuries to the bladder and in some cases, the removal of the uterus if not repairable.

Funny how u never mentioned the extra cables u were sent till now after u had insisted he shortchanged you and u posted all sorts of damning reviews abt him prior to that. Now u claim its rubbish he sent. How do we confirm u don't av ulterior motives.

Chichilas:
So because you sent me two rubbish pieces of cables each about 10 feet means I do not have a right to leave reviews on your service?


Shey 20ft is 10 yards? That is not even 8 yards self.
Now we have to join 4 different cables to make up what we want to achieve?

Or your seller in Alaba did not tell you he sent the cables in pieces?

Pls bell my curiosity. For 2 colleagues installations, curious as to which would be more efficient. A 2kva12v hybrid inverter connected to a 12v200ah lithium battery and a 4.2kva24v hybrid inverter connected to a 24v100ah lithium battery. Both using 2 415watt jasolar panels. Would there be any difference also in the charging time and discharge rate assuming same loads? Thanks

dollarnaira:
All inverters work with lithium

Actually meant in terms of charging. Thanks👍

swagifted:
if i eventually buy it na straight to lithium.

That means you have to factor in an inverter that can work with lithium so u dont end up spending again later.

swagifted:
is there anyone here that have used firman line or hybrid or non hybrid inverters?

What type of battery are u using? Any chances u want to change to lithium later on if it's not ur present setup? That wud help in giving u a reasonable response