How to Avoid the Biggest Solar Sizing Scam Happening in Nigeria Right Now
The Truth Nobody Wants to Tell You About Solar Installation in Nigeria
If you’ve ever bought a solar system that didn’t last as promised — congratulations, you’ve probably been a victim of the solar sizing scam sweeping across Nigeria right now.
It’s not that solar power doesn’t work. It’s that most people are sold systems that were never sized properly.
From market vendors to some so-called “installers,” many are taking advantage of people’s limited knowledge of solar sizing — selling them undersized panels, weak batteries, and inverters that can’t handle their actual load.
The result?
⚡ Batteries that die within months.
⚡ Panels that can’t charge fully.
⚡ Inverters that keep tripping every night.
And when you complain, they say:
“The sun no dey shine well these days.”
But the real problem isn’t the sun — it’s the wrong system size.
What Is the Solar Sizing Scam?
The scam is simple:
Unscrupulous sellers and installers underquote your load, so they can give you a cheaper price and “win” your job.
They’ll tell you a single 200Ah battery and two 300W panels can power your freezer, fans, TV, bulbs, and pumping machine — and you’ll believe them because it sounds affordable.
But what they won’t tell you is that it’s physically impossible for that setup to sustain that kind of load for even one day.
This isn’t a mistake.
It’s a calculated scam based on your ignorance of proper solar system design.
The Only Way to Beat the Scam: Know Your Numbers
Before you pay anyone a dime, you must know exactly how much power you need — and that starts with accurate load calculation.
Here’s how to calculate your daily energy consumption:
- List all appliances you want to power.
Example: TV (100W), Fan (70W), 5 Bulbs (15W each = 75W), Fridge (150W). - Multiply each by hours of daily use.
Example:
TV → 100W × 5h = 500Wh
Fan → 70W × 8h = 560Wh
Bulbs → 75W × 6h = 450Wh
Fridge → 150W × 10h = 1,500Wh
Total = 3,010Wh/day (3.01kWh) - Add 25% system losses (due to inverter and battery inefficiency):
3,010 × 1.25 = 3,762Wh/day
This means your system should supply at least 3.8kWh daily.
That’s how to calculate your solar needs accurately — or simply use the Globisun Solar App to do it automatically in seconds.
The app gives you instant results on:
✅ Solar panel quantity
✅ Battery size
✅ Charge controller rating
✅ Inverter capacity
✅ Cable sizing
So you never have to rely on guesswork or shady “installer estimates.”
The Hidden Tactics of Solar Scammers
Let’s expose some of the tricks used by fraudulent solar sellers in Nigeria:
1. The “It Will Manage” Line
They downplay your energy consumption and assure you that the system will “manage it.”
Reality: It won’t. Your battery will die within months.
2. The “Too Much Sunlight” Excuse
They blame system failure on weather.
Reality: Even in cloudy conditions, a well-sized system still performs.
3. The “Add Another Battery” Trap
After selling you an undersized system, they tell you to “just add another battery.”
Reality: That only covers up the wrong design — and costs you more money.
4. The “Installer Knows Best” Myth
They discourage you from checking the math yourself.
Reality: You have every right to verify your load calculation before purchase.
Don’t let these tricks drain your wallet and patience.
How to Protect Yourself Before Buying a Solar System
Here’s what to do before you sign any solar deal:
- Ask for a detailed load analysis sheet.
If your installer can’t show you one — walk away. - Use a trusted calculator.
Download the Globisun Solar App to calculate your exact requirements in minutes. - Compare quotes intelligently.
The cheapest system is usually the one that fails fastest. - Verify the panel and battery ratings.
Ensure they match your calculated needs, not a random estimate. - Check your location’s solar potential.
The app gives you real-time solar weather forecasts — so you can plan installations wisely.
Knowledge is your best defense against scams.
The Easy Way to Stay Safe — Let Globisun Do the Math
The Globisun Solar App was built to solve this exact problem — helping homeowners, engineers, and business owners calculate solar sizing with precision.
With it, you can:
- Design your system from anywhere
- Estimate costs before purchase
- Prevent overloads and equipment damage
- Understand cable and inverter matching
- Get solar weather alerts for better energy management
It’s like having a certified solar engineer in your pocket — 24/7.
Final Thoughts — Don’t Be a Victim
The biggest solar scam in Nigeria isn’t about fake products.
It’s about fake sizing — wrong numbers sold as expert advice.
But now you know better.
Before you buy that next “1kVA solar system,” take one smart step:
👉 Calculate your solar needs with Globisun.
It’s free, fast, and accurate.
Because in solar energy — the right size changes everything.
