₦airaland Forum

makavele:
Load:

42" LED Tv: 110W
GoTv decoder: 15W i guess.
Ceiling Fan: 70W


Total: 195 W + 10% for losses due to conversion and inefficiences
: 195 + 19.5 = 214.5 or 215W round figure.

Energy consumption: 215 Watts per hours = 215 Wh

You said to be run during the day; you didn't mention hwo many exact hours.

Let me guess 7 AM - 6 PM = 11 hours

Gross energy consumption = 215 W x 11 hours = 2365 Wh or 2.4kWh

Battery required:

At 50% DOD (economy level):

2365 Wh x 2 = 4730 Wh

Adding inefficiency factor: 4730 Wh / 0.8 = 5912.5 Wh

Using 12V batteries: 5912.5 Wh / 12V = 492.7 Ah

Let's round it up to 500Ah; which means you will need either:

1 unit of 12V 500Ah battery, or
2 units of 12V 250Ah batteries (more common), or
5 units of 12V 100Ah batteries

The choice is yours.

Now for Solar Panels:

Typical sun hours for Lagos is about 5 hours; pray no bad weather.

So we need that battery bank to be recharged completely in about 5 hours.

Calculations for only 50% DOD

5912.5 Wh / 5 hours = 1182.5 Watts of solar panels

You will either need

1 unit of 1182.5 Watts solar panels, or
5 unit of 250 Watts solar panels, or
8 units of 150 Watts solar panels, e.t.c.

This amount of panels are only good to recharge your batteries, if you want to run loads simultaneouly,
double the panels.

If you discharge batteries below 50%, all my calculations will be off.I did not account for lower discharge.

I did not account for more loads; only exactly what you listed.

Cheers.

Thanks alot bro.
I was looking at 4pcs 200W panels dou.

makavele:
I'll give you breakdown in the morning

Bro, iv please do the calculation for these loads:

These are wat i want to be running during the day alongside charging the batteries with the solar:
42" LED Tv: 110W
GoTv decoder: 15W i guess.
Ceiling Fan: 70W

Thanks

makavele:
Mine is a 2,000 watts system, 4 surround speakers, 1 twitter and 1 bass engine ..

Yet I have never seen it go above 45 W, even at maximum volume

Maybe u are using a Watt meter, mine is wat is written on the rear dat I know.

kiekie1:
What a bad experience ! There are so many reasons why battery die prematurely but its so sad to hear batteries turning scrap in less than a month , it shows that a proper load audit wasn't done , substandard material or undersized battery -solar system ! Cheer's

@bolded, funny, but felicity solar sent thier personnel that stayed in Nigeria for over a week, of course proper load audit was done.

makavele:
Exactly what I told him
and they blamed the “poor inverter” that did
nothing wrong

We dont blame the inverter, we blame the whole company and thier half-baked installers! These Chinese guys from Felicity Solar came in from China and did the installations in all the Company's branches, even in my boss's house. I tink the one in his house is acting funny, then the one in the headoffice failed, couldnt hold charge, u leave it over the weekend with good sunlight only to com back on monday and its already beeping on 30mins usage. The headoffice is completely off-grid so we rely on the solar system and gen. The batteries wer all thrown away and new batteries bought thats working perfectly now. I later heard word that the batteries had stayed stale and unused in containers before they wer shipped from china though. Even the solar street lights dey installed has stopped working long ime ago. only one flickers somtimes

makavele:
What is the wattage of the decoder = 15W i presume?

The bulbs how many watts too = 15? 10? 25?

ceiling fans should be 80 watts

I am yet to see a home-use theater system for 115W.. . should be no more than 30W max

Oh, I just checked the Home Theater again, it's even 150W not 115W. @bolded, really? Iv seen many. Mine is the type with tall standing speakers. It's 1000Watts P.M.P.O. I'll check and confirm the others after work today and let u knw.. Tnx

makavele:
I can give 1001 reasons why a battery can die . . . that is not tied to any specific inverter model
ranging from poor load audit, faulty installation, bad battery make etc

Provide typical daily load.

42" LED TV = 110W maximum wattage (as written on the rear, without energy saving program).

32" LED TV = 70W (as written on rear).

GoTv decoder.

2 Cieling fans

Two energy saving bulbs.

Playstation 4 Slim system = 80W

Home Theater system = 115W (hardly use).

I'll luv a solar system dat can power the 42" TV, Gotv decoder, 1 cieling fan during the week days and still charge the batteries for peeps at home while I'm at work. Having enough juice for me to relax and play my game after work for at least 3 hrs

makavele:
I also have a microtek 2000 watts 24V model . . and yes I charge with a generator (4kva gasoline generator) and no depreciation whatsoever.
If it is exactly as you have described,you might want to add a 2kva (at least) stabilizer between generator and inverter to sanitize the input.
Your generator is not producing clean power.
There are many inverters just that' you've been looking at the wrong (cheap) places
Magnasine has a 12V version that offers 70 amps (close to 400k) ..and so does Felicity (upwards of 150k)
Just that they don't come cheap

Sukam, Microtek, Luminous are tier-3 (budget) inverters

I know Felicity Solar, they installed the solar system we use in my office, a 5kVa system with 10pcs 200Ah batteries, all the batteries died within 10months.
Well, I'll consider adding a stabilizer, thanks for that. Looking at Solar too. If I giv u a typical daily load, can u giv an estimate of how many panels will be sufficient? For charging only, then charging and simultaneously using it for load

makavele:
Let me break it down for you now:

Inverter is 1.1 kva (apparent power); so real power (minus inefficiencies (considering power factor)) would be 1100 VA * 80%= 880 Watts

You said charge current 10 - 20 AMps.. Let me use 20 amps x 14.6 v (average voltage)= 292 wATTs at any given hour or less (if i use nominal voltage of 12.7)

Batteries: 200Ah X 2 X 12 = 4800Wh

Charging time:

1. Assuming battery is depleted to zero: 4800/292= 16 to get to roughly 80%; when you factor in absorption time and take note that the charge pattern isn't a linear graph since current will keep reducing over time . . so add extra 3 hours= 19 hours plus
So it would take about 19 hours to get thoroughly full if you allow batteries deplete that inverter turns off itself

2. Assuming battery is depleted to 50%: 4800/2/292= 8 hours.. add extra absorption time= 11 hours or so.

The point is that the inverter is not capable of charging those batteries sufficiently . . While on NEPA you might leave it overnight and experience good charge..But do you keep your gen turned on for 20 hours at a stretch to charge your battery . . .
I doubt so...If you do,then battery would be as good as when charged via NEPA

I repeat, You would be better off using an inverter with good charging capabilities e.g. one that offers 50 - 70 Amps on 12V

20Amps isn't even ideal for a 24V inverter but can be managed.

Bro, u still dnt get me. What inverter do u use and do u use gen to charge it? If yes, what's the capacity of ur gen?
I dnt hav any issue with the charging current of my Inverter. Plus it doesn't take dt much time to charge it up to full with Nepa wen it's fully discharged(which I hardly do), trust me, I keep serious tabs. My Inverter takes 14hrs+- 25mins to charge my batteries to full wen it's fully depleted. This is not even what I'm talking about, lemme giv u a layman's explanation of wat I'm saying:

I charge fully depleted battery with Nepa for 5hrs = 7hrs usage time till it fully depletes.

Then, I charge fully depleted battery with gen for 5hrs = 3hrs usage time till it fully depletes.

Plus iv never seen a well known, good 12v inverter with upto 50 - 70 Amps charging current. You can show me one, I'd luv to knw. PS: good brands like Sukam, Microtek, Luminous etc
Not all those Samuel L. Jackson inverters o, dat don't have a charging program, as long as der's power, dey'll continue charging ur batteries till dey become pregnant. Lol

Price is slightly negotiable.
Interested peeps hola: 08064671783 call or whatsapp.

easybussiness:
Solar freezer now available in stock 80litre,160litre,200litre,300litre prize ranges from 150,000

Solar generator now available in stock 200watt,300watts,500watts,100watts prize range from 40,000

Solar dc tv now available in stock available in 15,inches,17inches,24inches,inches,32inches prize range from 22,000

Solar pump now available in stock prize range from 50,000

Aircooler,mistfan,solar fan also available in stock

Solar ricecooker,solar kettle ,solar blender, solar clippet now available whatsup 08166117634 for more info or visit solarvisionnija.com.ng

Oboy, everything solar. We are being solarized.
Meanwhile, which one is "Solar generator"? It generates solar energy? Pls explain..

makavele:
So why external charger in the first place ...

unless, probably, the inverter has a weak amp output . .

If u read my writeup well, u'll find out dat I never have issues with my Inverter charging the batteries through Nepa, my issue is charging with gen. I'm not the only one dat has complained, well except for pple using bigger diesel gens. I use a 1.1Kva, 12v Microtek Inverter with two 200Ah AGM batteries in parallel, the inverter itself outputs 15-20Amps of charging current, it's very good wen on Nepa. I also use a 2.9Kva petrol gen to charge it n dats wer my issue Coms in, it seems slower wen charging with gen (gen is very sound and never been worked on), hence, I'm thinking of employing an extra smart charger to help boost up the charging speed while using gen, u get now?

makavele:
Pound for pound, mono gives more energy yield . .but the price difference between them vs energy gained
isn't so much for a good bargain

Yes, you can hook up solar panels. You will need to do a comprehensive load audit to know the amount of panel power required
et al.

Seek professional help

Are u saying the extra energy yield isn't worth the extra buck for mono?

Thanks for the response anyways.

makavele:
The use of external chargers is highly discouraged; except you can't help it.

Get an inverter with good charging capabilities or add a solar array

OK noted.

My Inverter has very good charging capability by the way. I'm thinking to add solar though.

SA

SA

tobianthony:
You don finish the far cry just now ...

Lol, not yet bro. I put am up in advance cos i go soon finish am, u know GOW is coming..

Plus, between Monocrystalline and Polycrystalline Solar panels, which is best? The reasons too pls..
Can i hook up solar panels to my existing inverter system and how? NOTE: Inverter is not a hybrid, i only charge through mains.

Ok so im thinking, since its undastood that NEPA mains charge inverter batteries better than Generators (for reasons actually unknown), what then is the solution to this? Why should i be getting more juice out of my battery bank wen i charge with mains for about 3hrs than wen i charge with generator for 5hrs? The plan is to save, right? I dont want to burn money on fuel just to get lil juice in the battery at the end.
Will adding an external Smart Charger to the inverter wenever im using Generator help?

justscorchone:
Pes17
The division
Dying light

The bolded, is it the The Following (Enhanced edition)?

Assasin's Creed Origins (brand new)- N15,500
Mass Effect Andromeda (brand new)- N8,500
Far Cry 5-18k
The evil within 2- N10,500
MKXL- N8,000
Prices are negotiable

Noccerino:
8k...Lagos

Call or whatsapp me on the number on the advert, we could work out something..

temitimx19:
Maybe i should get one for myself

I strongly recommend bro..

temitimx19:
Nice. How'd the game

Makes maximum sense!
If u luv Far Cry 4, u'll luv dis one even more! A whole Lotta improvements. Dou enemies are a bit persistent. A.I is a bit more intelligent. I started playing recently dou but iv unlocked a companion dog (Boomer) to help me mark and take dwn enemies, dis is really sweet! Graphics is tight! Story is still adding up dou buh I'm fine with it.
Overall, it's a badass game! I luv the explosions! I'm all about PURE action!

tobianthony:
Bad guy already

Mhen, I'm a big fan!

Far Cry 5 on PS4

Brand new Assassin's Creed Origins..
Brand new Mass Effect Andromeda..
Pre-owned The Evil Within 2..
.. still available for sale

Still available

Neoteny:
Yup. Easily the best zombie game after the first two resident evil games.

EE on PC is absolutely gorgeous, especially when you max out the grafx.

Have you tried State of Decay Year One edition? Not as polished but not a bad zombie game too.

No bro, i play on PS4, buh i think the sequel might be coming to the PS4 this year.

Neoteny:
Dying Light The Following EE. Nightmare difficulty, already beat it on normal.

On PC

The Dying Light series, Wonderful but hugely and surprisingly underrated game.
Played the original multiple times, I'll be getting "The Following, Enhanced Edition" soon. Can't wait for a sequel.

ozyblazze:
Na wa o.Can't someone get an okay ISP that doesn't have a restricted NAT,doesn't lag,network doesn't trip of during rain/storms and has reasonable data plans

Spectranet to your rescue..!
Smile too is fine.

Server88:
I know right... I only use Ntel to download.

Yh, i just use it for games/game updates downloads..