₦airaland Forum

isangjohnson:
If you have good installer in Benin, please let me know.
I designed a small 12v 160ah lifepo4 battery with 1.2kva 12v Tbb inverter, 80A Felicity Mppt CC and 2 pcs of 345w Jinko pv to power 120w freezer during the day and 45w LG tv, about 3 ceiling fans of 14w each and few lighting points (energy saving bulbs) at night for my friend.
The guy called two different installers and he was told the system will not power the stated loads.

It will work if grid supply will still be used but won't fly if it's totally off grid.
In order for it to work off grid you need more panels. In real life, those PV won't supply more than 400+ watts on a very bright day.

Please electrical gurus, which should one factor when calculating how much back-up is needed,ie how long the batteries will operate, real power or apperent power of the loads?

You can use lithium batteries with your UPS but you will need a compatible battery charger. Don't charge with the UPS

tetralogyfallot:
Lumos pack Samsung lithium ion cells are now available @ N500 per cell. Only in large quantity pls.

What's your location and share more info abt the batteries such as Condition and capacity

I don't understand why people are celebrating this as an achievement of the government.
Though it's better the naira appreciates but let's not forget, some months ago it was just about 700 naira so why sing praises because it's 950naira.

leketon:
Tested UK Used 32650 Lifepo4 Cells (3.2v 6ah) For DIY LITHIUM BATTERY

Infrared Pir Motion Sensor Automatic Light Switch



Description

This product is a new type of energy-saving motion sensor switch, that provide automated hands-free way to switch light ON/OFF in your homes indoors and outdoors. It saves your electric bill and provides comfort by automically switching ON the light when motion is detected and OFF after approximately thirty (30) seconds.



It can be use to light up entryways, corridors, stairs, hallway, closet, bathrooms, basements, warehouses, garages and other places. Motion Sensor Automatic Light Switch is use to achieve automatic control ON/OFF functions.

It adopts photosensitive control integrate circuit; it will not turn on the light during the daytime or strong light environment.



In addition to the automatic control of lights, it can also be used to control exhaust fans, doorbells or other devices.



Use Case Advantage:
- Say good bye to bumping into stuff in the dark.
- No more forgetting to turn the lights OFF.
- Don't leave lights on needlessly running up electric bill.



Highlights:
- Automatic Induction
- Intelligent Brightness Sensor
- Passive Infrared Technology
- Easy to Install
- Save Electric Bills
- Auto switch ON/OFF
- Wide Applications



Compatibility / Application:
LED lights
Incandescent Bulbs
Fluorescent light
Ceiling lamps
Panel lights
Floodlights
Exhaust Fans
Doorbells



Specifications:
Color: White
Working Voltage: 110-240V 50/60Hz
Item Diameter: 2.5cm
Item Shape: Round
Material: Acrylonitrile Butadiene Styrene
Switch Type: Ifrared Sensor Switch
Operation Mode: Auto Switch ON/OFF
Sensing Distance: 3-6meters
Sensing Angle: 110 Degrees
Time Delay: 30secs approx. (+/-10secs)
Maximum Load: <90watts



Package Includes:
1 x Motion Sensor Detector Light Switch

Why not add price

Why is Naira on a free fall. Forget all this dollar scarcity they are talking about jare. E scarce but they can sell it for that price and e never finish

I don't know why but I actually think it's beautiful. I think the developers shouldn't have filled it with sand instead pile concrete to allow the easy flow of water underneath their properties. Good development jare. Let them be regulated jare.

We have things like this overseas though better constructed. Banana Island Lite

mrvitalis:
So that's about 105% of revenue which leaves in a very bad state

My solution

Nigeria has about 42 million houses... Let's say 60% are in urban areas that leaves 25.2 million houses...

Say each house is valued at an average of 20 million

Implementing a 3% housing tax yearly ( federal government keeps 50% state keep 50% )

This would generate 7.56 trillion yearly for the federal government

Now we have 12 million cars in Nigeria already from stats I get

If we introduce 20k to 500k tax on cars, tricycles and bikes . .. We should be looking at a revenue of 3 trillion... States keep 1.5 federal 1.5 trillion yearly

This two simple system Yeileds 9 trillion yearly plus our current 8 trillion yearly... That's about 17 trillion


If we can restructure our debts... We can reduce debt servicing to 4 trillion... Yes
And wage bill can be reduced to 5 trillion... We have 8 trillion left

If 3 trillion goes to infrastructure 2 to health and education

We can have 3 trillion provided to banks at 3% interest to give to businesses in the import substitutes and exportable business as loans at 10% max

The above would create 5 million jobs in 5 years and increase revenue by over 5 trillion yearly


note this solution is not perfect and is a short version of the whole theory

Do you think there's a building I Nigeria that's not being taxed? What's LAND USE CHARGE for?

All vehicles are being taxed through various means.

You also forgot to account for the cost of collection of these taxes which will gulp about 15 to 25 per cent of the tax collected

Taxation is not the problem. Accountability and judicious use of these generated funds is the bane of the societys growth.

Finally, no country can tax itself into prosperity. Issuance of interest free credit plus the right set of monetary and fiscal policies with SECURITY is the only way out of this mess.

Sofistcatdmoron:
50% dept of discharge is not at 12v , onye ara

What's your stance on this

mank1234:
Sorry sir. You can have.
They are so many technology behind transformerless designs.
Some employ HF transformer, some don't.

The essence of the HF transformer and accompanying circuitry is to get 340Vdc, the bus voltage and not to invert (DC to AC). The inversion is done from 340dc and does not need transformer.

So many circuits design exist for stepping up to 340Vdc without the need for HF transformer.

Oh OK I agree with you on this.

Herdamorlar:
I just got inverter 3000w, charge controller and sunfit battery 100ah from jumia yesterday. Please I need your advice on the sunfit battery (is the battery last or I return it back) and how to connect the power supply to charge the inverter sunfit battery, can I charge it from my main socket or I get installer to connect it through electricity grid in my house?
Anybody that knows how to do this can also explain for me please

You want to connect a 3000w inverter to a 100ah battery. Be ready to replace the battery in 2 weeks except you don't load beyond 100watts

mank1234:
DC to DC converter then inverting as against inverting and then stepping up the AC.
TransformerLESS inverter uses the former.

The later is now done efficiently using toroidal transformer to step up the resulting AC. People still erroneously refer to this as transformerless because the transformer is different from the usual one they are used to.

I disagree with your submission. Both transformer and transformerless inverters use transformers, just different kinds. The transformer based inverters uses low frequency transformers while the transformerless uses high frequency transformers.

You can't have an inverter without a transformer.

CrazyMan:
At this point I believe it's safe to say that the black man cannot effectively manage leadership.

No sub Saharan African nation is progressing. From Nigeria, to Niger, to Congo, Mali, Liberia, Gabon, Burundi... etc, it's the same story. Abject poverty and insane Corruption from their leaders.

Donald Trump was right after all. Africa needs to be recolonized a second time. We obviously cannot progress with this crop of fantastically corrupt leaders, and blind tribalistic followers.

Do you think it's their fault

Go read the book A HISTORY OF CENTRAL BANKING AND THE ENSLAVEMENT OF MANKIND

Despite this sounding like a good idea. I think it's a terrible one. Just train one of the staff of the company on how to handle emergency, preferably the security personnel.

Is fire outbreak the most pressing issue in Nigeria. Look at the cost implications on the organization especially small business and start ups. Imagine employing a staff to do nothing other than to wait for fire emergency. How many buildings dey catch fire.

The government should as a matter of fact stop shifting their responsibilities to the masses. Just employ more fire fighters and build more stations.

Cutezt:
What i meant is that if the batteries are charged, even if it is halfway, i can use it for the entire day, i usually turn it off at night as i dont need light for anything as i sleep, but that's usually very late, maybe 1 or 2am. It takes me from the previous day till the next day, if there is not enough sunlight on that day, it goes to around 23v and i usually turn it off that time. so in summary, if charged anywhere around 25% with Light, then it takes me around 20 hours with 4-5 hours of sunlight.

Not just the wattage but voltage should match, also once you add more panels you will exceed your charge controller max AMPs. I think you will need to get another charge controller

This is what I would recommend, get the 520watts panel with a separate charge controller. Note since your system is 24v and your panel voltage is 41 you will need a mppt charger else you will lose lots of power generated.

Even if you get two more 250w panels you will need another charge controller.

katniss:
You are trying to control your wife.
She’s not a robot and has her desires.
You can only advise and encourage her not compel her to do what you want.

I strongly disagree with your opinion if you term leading controlling then good luck to you.
He understands perfectly well what his family needs and will need in the future.
As a woman if you are not ready to be a follower don't get married.
Note I didn't mean to be treated as a slave. Your input as the wife is vital but the leader takes the decision except where the leader is not capable of taking progressive decisions.
Do you think the OP is doing what he desires or what is necessary to earn enough for his family. Do you think most men love their job and work conditions.
Nobody should do what they want in the family rather what's good for the whole family.

Cutezt:
The panels I want to buy is the Felicity solar 540w Mono crystalline Half Cell kit 540watts, maximum power voltage 41.62V, mpc 12.98, opc 49.55

The panels I have currently installed are 250-watts- [24v] Monocrystalline Solar Panels
Output Power 250w
Length (mm)1210Width (mm)808
Warranty2 YearsSupplied
Cable0.8mShort
Circuit Current8.67A
Open Circuit Voltage24/48V
Weight (kg)12Height (mm)35Output
System Voltage24VDC
ConstructionMonocrystalline
Maximum Power Voltage18.5V

The batteries are 2 luminous batteries, connected safepower 1.5kva inverter. I really don't know he configured the panels but he said we will buy a higher CC, the one I currently have is 40a, I will attach the image spec below

Valto brightk Iinnov8
dacool1
mctfopt

I don't think this will work. The voltage of the panels do not match except you will be willing to buy another charge controller.

Cutezt:
Hello house, good evening.

So I have a setup of 3 pieces of 250w panels on a 1.5kva inverter and 2 batteries, but it doesn't charge fast enough with the panels, I figured that it needed more panels and someone is offering me a brand new 520 wats panel at a good price, however, I refused buying cos I read that joining panels of different wattage together is not a good idea, however, I went ahead to ask my installer if the panels can work together and to my shock, he says they will work fine. I am sceptical about it and don't trust his judgment on this one, so I decided to ask the professionals in the house, what are the pros and cons of joining panels of different wattage with such wide margin?

Cc - Valto brightk Iinnov8
dacool1
mctfopt and anyone that cares to help. Thank you.

Provide us with more information
What's the voltage of the previously installed panels and the new one
What kind of charge controller do you currently use. Give us the specs

Don't mind all these kids here on nairaland. Don't give up on your ideas. I just think she's having a wrong mindset thinking it's a control mechanism or she lacks indepth understanding of the subject matter or she's selfish. Forget all these independent talks from people here.

How is she independent when she will be controlled by a coy, she prefers to work for other people's organization than to work for her family. Most women have this problem.

If she doesn't understand the pros and cons of her decisions, try educating her but if you sense she's putting herself ahead of the family, you will have to appeal to her selfish nature by making her see from how it benefits her more.

It's most likely she wants to have some level of freedom to move around without getting queried. If this is the issue, just plan your retirement without her in the picture for now. When she's about 50years old she'll come around.

For those saying she needs more income, what's the income going to be used for. I hope you all read where he said all expenses are catered for by him. Plus she makes more from her current business.

So sad. Been downloading movies of good quality from them. Guess content owners Don press their neck for piracy

Who else noticed this that movies section has been disabled on thenetnaija site

de3lar:
Yes I don't have appliances pass TV and Light bulbs, the rest are phone chargers.


For other heavy loads, I have a big Gen to power them if I wish.

OK then
Panels 160k to 200k depending on type
Battery like 350 to 400k
Cc like 20k
Inverter 66k(sachet) because of low power consumption and 1500 watts is an overkill for just TV and lights I would recommend 500watts to 1000watts
Cables etc 50k

de3lar:
So I'm planning on going off Grid and off Gen, I need the cost breakdown for these setup:

4 150w solar Panels
200ah Lithium Battery
30A Charge Controller
1500w Inverter

Anyone with the average cost should please help with their prices 🙏🏾

Thanks.

You can't go off grid with those listed above. Abi it's just light and TV u want to be using ni

ameh99:
50AH 12v lithium battery available?

Price?

Ymguitarz:
Please guru in the house, how much will be enough to setup a 3.5kva solar system. All expenses plus installation.?

5million

Fear God na. See what u want to sell for 40k

Stop praising nonsense. Even more advanced countries still make use of physical files, e get why.

It should have been categorized that majority of the works be moved online not all

helinues:
No wahala, na to stop providing service to those who refused to upgrade their prepaid meters when the time given lapses.

You people can go to court. Sebi una wan dey play politics with everything

Don't you think you are deliberately being foolish here. No matter how much you are paid to defend these people and policies, you don't need to sound stupid.

So you expect people to give up their prepaid meters and get hooked on estimated billings because of the said upgrades. What about simply giving them temporary prepaid meters or outrightly replacing the said meters. It's like you have no idea how much this people rob us in the name of estimated billing.

Unmetered buildings in my area gets as much as 120k per month as energy bill. The minimum estimated bill where is stay is 55k per flat. If not for prepaid I would have disconnected too

Can't they simply go to the said homes and simply upgrade those meters and reconnect them. Is it beyond upgrading, even a whole computer self will be upgraded in less than 30 mins

complexstuffs:
Good morning gurus in the house,

Pls can gurus help me with quote to install a solar/inverter system in my house with the following load of 1500W.
In addition to the house load, I will also install 4 number batteries.

1) How many solar panels would I need and their sizes
2) What size and type of inverter would be best for this setup
3) What size and type of Charge Controller would be best for this setup
4) What size and type of batteries would be best for this setup

Thanks as I await your responses


CC
Valto
dacool1
mctfopt

Just go with mctfoot's recommendations
But you will just do fine with 3.5 to 5kva inverter
Up your solar PV to about 13 or 15 kw
And if you insist on lead acid batteries you will need atleast 24 batteries assuming the loads will be on 24/7 and managing the batteries will be a lot of work and you will need to dedicate a whole room

It's when you go solar you will realize that there are more cloudy days than sunny days.

why do you all believe he is dead. its all part of the script and i:strongly believe putin knows about this as the guy had to disappear after taking the west money without killing putin