₦airaland Forum

Kobicove:
Rules are rules, if your visa has expired then they have a strong basis to deny you entry

Some of you just want to comment for commenting sake... Did you read the part he said he has no problem been turn back due to expired visa? The problem he has is the fact that Europeans can get into the country without visa but an African man need visa before been allowed to enter in a country in Africa as a Africa man. Does this make sense to you? Does this seems fair to you?

Solar Installation in Opete Warri: 4kVA 24V System Running AC, Fridge & Full House (Technical Breakdown)



🔎 STEP 1: Proper Load Calculation (Most Installers Skip This)
Appliances involved:
1 AC (daytime use mainly)
Refrigerator
TV
CCTV system
10+ bulbs
Multiple fans
Phones & laptops charging
Estimated Load Breakdown
AC: ~1,200–1,500W (startup surge higher)
Fridge: ~150–250W (with surge)
TV + CCTV: ~200W
Bulbs: ~150W
Fans: ~200W
Misc charging: ~150W
Daytime working load average: ~2,000–2,500W
Peak surge (when AC + fridge kick in): 4,000W+
This is where engineering thinking starts.

⚙️ STEP 2: Why We Chose a 4kVA 24V Gospower (100A MPPT)
We installed:
Inverter: 4kVA / 24V Gospower (built-in 100A MPPT)
Why not 3kVA? Because surge matters more than average load.
AC compressors and refrigerators don’t care about your inverter rating — they pull what they need on startup.
A 4kVA inverter gives:
Better surge handling
More headroom
Less stress on components
Longer lifespan
About the 100A MPPT
At 24V system: 100A MPPT × 24V ≈ 2,400W solar charging capacity (theoretical charging side)
This ensures:
Faster battery charging
Better harvesting even under partial cloud (common in Delta afternoons)
MPPT (Maximum Power Point Tracking) is critical here — it extracts maximum usable power from the panels instead of wasting voltage like PWM controllers do.

🔋 STEP 3: Battery Bank Engineering
We used:
2 pcs 5kWh / 24V 200Ah batteries connected in parallel
Parallel connection keeps voltage at 24V but doubles capacity.
So:
24V system
400Ah total capacity
Energy storage ≈ 9.6kWh usable (depending on depth of discharge settings)
Why this size?
Client wanted:
Stable night power (no AC overnight)
Fridge, fans, TV, CCTV till morning
Night load estimated around: ~800–1,200W average
With proper battery management, this comfortably runs through the night without deep discharging — which is what kills batteries in many Warri installations.

☀️ STEP 4: Panel Sizing (12 × 450W Panels)
Total panel capacity: 450W × 12 = 5,400W (5.4kW)
Why 5.4kW?
Because in Delta State:
Heat reduces panel efficiency
Dust reduces output
Clouds reduce harvest
And real-world output is rarely nameplate rating
So we oversize panels slightly to ensure:
Batteries charge fully before 2–3pm
AC can run during the day directly from solar
Excess energy tops batteries
➕ Additional 60A Cworth MPPT Controller
Because of panel arrangement and roof layout limitations, we added:
60A Cworth MPPT charge controller for additional panel strings.
Why?
Instead of forcing all panels through one controller and risking imbalance or underutilization, separating arrays:
Improves harvest efficiency
Reduces MPPT stress
Provides redundancy
Allows better voltage configuration
This is something many installers ignore.
They focus on “how many panels” — not “how efficiently they’re managed.”
🧱 Special Challenge: Roof Space + Surge Planning
Roof space wasn’t perfectly aligned.
We had to:
Split panel orientation carefully
Ensure string voltage stayed within MPPT limits
Balance shading risks
Also, AC startup surge was a concern.
So wiring gauge, DC protection, and breaker sizing were carefully selected to prevent voltage drop — which is a silent killer of 24V systems.


❌ Common Mistakes I See in Similar Installations in Warri

Installing 3kVA inverter for AC load
Using only 2–4 panels and expecting miracles
Undersized batteries that die in 6 months
No proper surge planning
Poor cable sizing
No DC breakers or SPD protection
Wrong battery parallel configuration


Solar doesn’t fail. Poor engineering fails.

⚡ Warri Solar Installation: 1.2kVA Solar Generator with 3.6kWh Lithium Battery (Real Project in Warri, Delta State)

One thing I hear often from homeowners in Warri, Delta State is:
“I want solar that will last overnight and not stress my appliances.”

So for this Warri installation, proper load calculation came first.

🔍 Load Plan (Warri Home Setup)
Daytime (9am–5pm – powered directly by solar panels):
Fridge
Washing machine
TV
Fan

Night use:
2 LED lights
Fan
TV
Phone & laptop charging
Base load: ~400–450W
Fridge surge: ~900W

Strategy:
Let the Warri sun power heavy appliances during the day.
Reserve the battery mainly for night stability.

⚙️ Solar System Configuration
1.2kVA All-in-One Solar Generator (MPPT built-in)
3.6kWh Lithium Battery
4 × 550W Solar Panels (2200W total)

Why this design?
2200W of solar panels ensures strong daytime production, enough to run fridge and washing machine while still charging the battery fully before evening.

The 3.6kWh lithium battery prevents deep daily discharge — which is a common reason solar batteries fail in many Warri homes.

MPPT maximizes panel efficiency, especially important under Delta weather conditions.

🏠 Installation Note
The roof was very slant, requiring careful panel mounting for safety and correct tilt.
The project was executed on a Sunday, so sourcing some materials wasn’t easy — but proper engineering doesn’t depend on convenience.

🔋 Final Result
Stable power during the day.
Smooth battery performance at night.
No tripping. No overnight drain.
This Warri solar installation reinforces what we practice at Nelbrom Technology:
In Warri, solar works perfectly — when it is properly designed, correctly sized, and intelligently managed.
Solar is not about size.
It’s about engineering.

How We Designed a Solar System in Warri to Run AC All Night (With Proper MPPT Planning)

A client in Warri contacted me with one clear goal:

> “I want my AC to run all night without switching anything off.”



His appliances included:

2 Smart TVs

1 Air Conditioner (overnight use)

2 Refrigerators

Water pumping machine

Lights, fans and other basic home appliances


Instead of jumping straight to equipment, we started with proper load analysis.

Because solar is not about buying big equipment — it’s about correct sizing.


---

Step 1: Load & Surge Calculation

We calculated:

Running watts of each appliance

Startup surge of refrigerators and pump

Night-time consumption (especially AC runtime)

Daytime usage pattern


Many systems fail because installers size based on guesswork instead of numbers.


---

Step 2: Inverter Selection – Why 6kVA Was Chosen

We installed a 6kVA Growatt hybrid inverter.

Important detail:

This inverter has dual MPPT charge controllers, and each MPPT can take up to 4000W of solar input.

That means:

4000W on MPPT 1

4000W on MPPT 2

Total possible solar input = 8000W


This is important because many people do not understand MPPT limits. They either:

Underutilize the inverter

Or overload one MPPT while the other is unused


Proper string balancing is critical.


---

Step 3: Panel Configuration – 12 × 550W (6.6kW Array)

We installed 12 pieces of 550W panels, giving a total of 6.6kW.

Now notice something:

The inverter can accept up to 8kW of panels, but we installed 6.6kW.

Why?

Because we designed based on:

Roof space

Realistic sun hours in Warri

Client’s actual load demand

Battery charging target time


The panels were split across the two MPPTs for balanced input.

The goal was not just to “have panels.”

The goal was:

Run all daytime appliances directly from solar

Charge the battery aggressively at the same time

Achieve near full charge within about 4 good sunlight hours


That way, by evening, the battery is strong and untouched by daytime loads.


---

Step 4: Battery Sizing – 15kWh Lithium

For overnight AC, battery capacity is everything.

We installed a 15kWh lithium battery system.

Why that size?

Because:

AC runs for long hours

Refrigerators cycle at night

There must be reserve capacity

Lithium performs best when not deeply discharged daily


Undersized batteries are the number one reason people complain that solar “doesn’t last till morning.”


---

The Result

✔ AC runs overnight
✔ No inverter tripping
✔ Pump starts without issue
✔ Battery charges quickly during the day
✔ No need to manage appliances aggressively

The key wasn’t brand.

It was:

Correct load calculation

Understanding MPPT capacity

Proper panel distribution

Adequate battery storage



---

The Main Lesson

Before installing solar, always check:

1. How many MPPTs does the inverter have?


2. What is the maximum PV input per MPPT?


3. Is the battery sized for night usage?


4. Are the panels enough to power loads AND charge battery simultaneously?



Solar success is engineering, not guesswork.

If anyone is interested, I can break down how to calculate AC night consumption properly using real numbers.

Let’s discuss. 🔋☀️

A Serious Problem I Keep Seeing in Warri and other states within Nigeria

One of the biggest issues affecting many solar users here is improper system design.

Solar is not just about connecting panels, inverter, and battery. It requires proper calculations and understanding of technical specifications.

Some common technical mistakes I see include:

Not reading inverter labels properly

Misinterpreting battery capacity ratings

Poor load calculation

Undersized panel arrays

Mixing incompatible components


Because of these errors, many people experience:

Batteries that don’t last overnight

Inverters that trip frequently

Panels that cannot fully charge the batteries

Systems shutting down earlier than expected


In several cases, I’ve had to correct systems that were already failing due to wrong sizing or poor configuration.


---

What I’ll Be Sharing in This Thread

In this thread, I’ll be discussing:

✅ How to calculate your load properly
✅ How to choose the right inverter size
✅ Differences between lithium and tubular batteries
✅ How to size panels correctly
✅ Common mistakes to avoid before paying any installer
✅ Real-life installation lessons from Warri & Delta

If you’re planning to install solar or currently having issues with your system, you can drop your questions here and we’ll discuss them.

Let’s use this thread to educate ourselves and build better, properly sized solar systems in Warri 🔋☀️

If your solar battery doesn’t last overnight or shuts down too quickly, the problem is usually not solar itself — it’s poor system sizing, wrong configuration, or bad installation.

Here are the real reasons:
⚡ Undersized Battery Capacity
If your appliances consume more energy than your battery can store, it will drain quickly and shut down before morning. Proper load calculation is key.

⚡ Wrong or Low-Quality Battery Type
Car batteries are not designed for deep cycling. Even fake or low-grade lithium batteries will fail prematurely under daily solar usage.

⚡ Incorrect Inverter & Charging Settings
Wrong bulk, float, or cut-off voltage settings can prevent full charging or cause early shutdown. Lithium and AGM batteries require specific configurations.

⚡ System Overloading
Running high-load appliances (freezers, pumping machines, irons, ACs) on a small system will weaken performance and shorten battery lifespan.

⚡ Poor Installation & Wiring
Loose terminals, undersized cables, bad neutral configuration, or improper earthing reduce efficiency and can damage your inverter and battery.
Solar technology is reliable.
Failures happen because of poor planning, wrong components, and unprofessional installation.
When properly sized and installed, a solar battery should serve you efficiently for years.

If you're in Warri or anywhere in Delta State and your system is shutting down early, let’s diagnose and fix it professionally.
📞 WhatsApp: 07033709424
📍 Solar Installation & Battery Solutions in Warri
Nelbrom Technology Limited
Solar is not luxury. It’s freedom. ☀️🔋

nairalanda1:
Assuming government kept subsidy, it would have to increase the amount that it spends subsidizing fuel prices with every rise in crude oil price beyond what was originally budgeted for

Now that the government has removed subsidy, where the money enter? Are you seeing the money in electricity, security, Healthcare and others?

Na new children when dey go school and some few others nai go fit sing that national anthem. Na me at this age Wan go learn new anthem? Say watin happen

duduade:
Religion will forever be one of our problems in Nigeria

She that rejected the blood transfusion based on her faith already knew what the end result will be so I'm indifferent about her death

Oga jehovah witness is not only in Nigeria. A jehovah witness in U.S and other developed country will refuse blood transfusion. Religion is a world problem not Nigeria problem!!

That wasn't a mistake though

Hello Nairalanders,
I’m an engineer based in Warri, Delta State, and over the years I’ve spent my time working with solar power systems, security installations, and smart automation. I created this thread to share practical, unbiased, and educative information about these technologies — especially for Nigerians who want reliable power, better security, and modern home conveniences.
Many people are still trying to understand:
🔋 How solar power really works
🔋 Why some systems fail while others last
🔋 How to size batteries, panels, and inverters correctly
🔐 How to set up effective CCTV and security systems
🏠 What “smart home automation” actually means
⚡ How to reduce energy costs without suffering outages
🏭 How automation is transforming small businesses and factories
My goal here is simple:
To break these topics down in a way anyone can understand — no technical jargon, no adverts, no upselling.
I’ll be sharing helpful insights like:
– The difference between hybrid, off-grid, and grid-tie inverters
– How to know the right battery capacity for your appliances
– Why CCTV cameras fail at night and how to prevent it
– How motion sensors, smart switches, and automation can improve your daily life
– Cost misconceptions about solar and ways to avoid being scammed
– Solar canopy and ground-mounted systems (for people who avoid roof drilling)
– How businesses use automation to reduce manpower and increase efficiency
Even though I operate from Warri, my work has taken me across different states, and I’ve seen common challenges Nigerians face when trying to adopt new technologies. This thread will address those challenges with real lessons from the field, not theory.
Feel free to ask any question, share your experience, or request clarification on anything related to solar, security systems, or smart home automation.
I’ll respond with honest, practical engineering advice.
Let’s make this thread a resource for everyone.

being:
As much as people may not like Wike, it is very irresponsible to be talking to a minister like that. How can a ministry or an agency of govt be on enforcement and then u say u follow orders.. however, where wike is to be blamed is his slowness to call d CNS Or CDS to order his boys out. Altogether. It is an embarrassment to the country that a security agency would prevent the work of a representative of govt. This is not much about wike but the chaos of the system. Indeed the c-in-c should actually issue a query to the CNS(since the officer was actually following orders) for allowing his institution to be involved in such lawlessness

but it's responsible for the minster to call a country military man a big fool telling him to shut up? Some of you are cowards hence why politicians or rich man step on your head. There is order of hierarchy in the military. It's not even right for the president to directly order lower/foot soliders, the order has to come from the president to the chief of defense staff, then to service chief, and other hierarchy before it gets to the foot solider. Chain of command is extremely important in the military. Wike can't just go there and tell a military man following command to move and disobey his order. He should call higher hierarchy, then that higher order will call the military man to move. You think say military na beans abi.

HgAkpobomeEr:
No foreign interference allowed. We will sort ourselves out.

Like you have sorted yourself out in 15 years?

benalvino3:
How come I did not see C programming language in your journey. If you are into devops and Linux environment, C is vital.

If you have just a system and don't want to dual boot between OS, WSL is a must.

Oga C is not vital
Non be only how come I didn't see C

tunde1200:
Even when another government come in 2027 he won't perform magic bro.
He would start his own administration perhaps he might follow the foot print of Jagaban.

That's a big assumption. Tinubu has shown little regard for the welfare of ordinary Nigerians. His administration so far reflects a dangerous mix of incompetence, insensitivity, and self-interest. Unlike Buhari—who, for all his flaws, at least showed some level of empathy in delaying subsidy removal—Tinubu acted without a clear plan to cushion the blow for the masses. Yes, subsidy removal was necessary, but the way he went about it was reckless. The same goes for the naira float. These policies were implemented without proper structure, and the result is widespread hardship. It seems he's more focused on pleasing international observers and boosting statistical figures than addressing the real suffering on the ground. Nigeria might be improving "on paper," but people are struggling more than ever. Good governance is not just about economic theory—it’s about the human impact. And so far, this administration has shown little concern for that.

May it not be better for anybody or anyone that wishes tinubu or Apc unto us in 2027. God forbid

BreakingNews21:
Wait? yes wait. Rome wasn't built in a day. The name of the game is to support locally made vehicles so that in a few years there will be a robust used or pre-owned car market w/o importing products that won't sell in more developed countries. It's called build for the future and look long range.
" AI Overview
5 made-in-Nigeria cars you would love to drive | The ...
Several vehicles are manufactured or assembled in Nigeria. These include models from Hyundai, Nissan, Peugeot, and the indigenous brand, Innoson Vehicle Manufacturing (IVM). Additionally, Nord Automobiles produces a range of vehicles in Nigeria."

I understand your point, but the reality is that it will take a very long time, and people need to own cars before then. If the government is truly serious about supporting locally made vehicles, they should lead by example and make use of them in their fleets. They have the financial capacity to purchase foreign vehicles at whatever price they wish, so they do not feel the pain of the common man. The truth is that Nigerians simply do not have the purchasing power to achieve this dream any time soon. Have you not seen the reports that 80 percent of Nigerians earn below 250,000 naira per month? Many private firms, including government agencies, have even refused to pay the 77,000 naira minimum wage. This was recently highlighted during a protest in Abuja led by VDM, when teachers went on strike due to non-implementation of the new minimum wage. Students were kept at home for three months. And this happened right in the Federal Capital Territory. So tell me, with this survival-level wage that workers are paid, when will Nigerians be able to buy a Keke that now costs between 3 and 4 million naira, let alone a brand-new car? For context, the lowest-priced car from Innoson is 22 million naira. We have to be realistic here, sir. Many mechanisms need to be put in place before such policies can work, and at the top of those mechanisms should be a proper car mortgage or installment payment plan, just as it is done in developed countries. You do not just bring out laws without adequate planning. This is the same way some of you supported Tinubu’s removal of fuel subsidy without a solid plan in place.

I will rest my case for now.

BreakingNews21:
Look on the bright side. This is very good news for locally made auto companies like Innoson Vehicle Manufacturing and a few others.

what bright side? Innoson sells brand new vehicles. How many Nigerians can afford brand new vehicles? Or should we wait years for the few who can buy brand new to use them until they are tired of using them then sell them as second hand? Some of una eh