Every day across Nigeria, thousands of solar users are suffering the same painful problem — their power backup doesn’t last.
The batteries die too fast.
The inverter keeps tripping.
The panels seem “weak.”

And most users blame the installer, the equipment, or even “bad battery.”
But the real culprit is something far simpler… and far more dangerous.

There’s ONE solar mistake silently destroying your backup system — and most people don’t even know they’re making it.
Let’s expose it before it costs you another naira.

⚡ The Real Reason Solar Systems Fail

The #1 cause of battery damage, inverter stress, and poor backup performance is…

👉 Undersized systems.

When your panels, batteries, or inverter are smaller than your actual energy needs, your system slowly kills itself every single day.

This is why solar sizing is not optional — it’s the foundation of your entire installation.

When your system is undersized:

Your batteries discharge deeper than they should
Your inverter works harder than designed
Your panels produce less than your load requires
Your cables heat up due to excess current
Your system becomes unstable, noisy, and short-lived

This one mistake is responsible for over 70% of backup failures happening in homes right now.

The only solution?
Accurate solar system design.

If you don’t know how to size your system, simply use the Globisun Solar Sizing App to instantly calculate your solar needs:
👉 <a href=”https://play.google.com/store/apps/details?id=com.globalnet.globisun&pcampaignid=web_share”>solar sizing calculator</a>

🧠 Understanding Solar Sizing

Solar sizing is the process of determining:

How many solar panels you need
The correct battery capacity
The right inverter size
The proper charge controller rating
The right cable thickness

Without accurate figures, your system becomes a ticking time bomb.

You can perform a simple load calculation like this:

Formula:

Total Load (Wh/day) = Sum of (Power × Hours Used)

Example:

TV: 80W × 5hrs = 400Wh
2 Fans: 65W × 6hrs × 2 = 780Wh
Fridge: 150W × 10hrs = 1500Wh
Lighting: 7 bulbs × 10W × 5hrs = 350Wh

Total Daily Consumption = 3030Wh/day

A system designed below this number will fail prematurely.

To skip manual calculations, you can use the Globisun app for fast and accurate <a href=”https://play.google.com/store/apps/details?id=com.globalnet.globisun&pcampaignid=web_share”>solar system design</a>.

🔥 The Secret Formula (Revealed)

To avoid the mistake that kills your power backup:

1️⃣ Solar Panel Size Formula

Required Panel (W) = Daily Load / Peak Sun Hours

2️⃣ Battery Size Formula

Battery (Ah) = Daily Load / (Battery Voltage × DOD × Efficiency)

3️⃣ Inverter Size

Inverter = Sum of all loads × 1.3 (safety factor)

4️⃣ Charge Controller Size

Controller (A) = Total panel wattage ÷ Battery voltage

5️⃣ Cable Size

Cable must be sized based on current flow and distance (use Globisun’s cable sizing feature).

You can automatically compute ALL these using Globisun:

💥 How to Size Each Component the Right Way

✔ Solar Panels

Too few panels = batteries never charge fully.
This leads to sulfation and permanent battery failure.

✔ Batteries

Small battery bank = deep discharge every night.
Deep discharge = battery death.

✔ Inverter

If your inverter is under-sized, it overheats and trips.
If it’s too large, it drains batteries rapidly.

✔ Charge Controller

If the controller is undersized, it gets hot and spoils your batteries.

✔ Cables

Thin cables force the system to draw more current → heat → failure.

Get all recommended values instantly with the Globisun app:

🚀 The Easy Way — Let the Globisun App Do It For You

Instead of guessing:

What panel size do I need?
How many batteries are enough?
What inverter should I buy?
What cable size is correct?

Just open Globisun, enter your appliances, and the app automatically performs all calculations.

Features include:

✅ Full solar sizing
✅ Battery sizing
✅ Panel sizing
✅ Charge controller sizing
✅ Cable sizing
✅ Solar weather alerts
✅ System design recommendations

This is the easiest way to avoid the mistake killing your backup system.

🌞 Final Thoughts — Save Your Backup Before It’s Too Late

Your solar system shouldn’t be struggling.
Your batteries shouldn’t be dying fast.
Your inverter shouldn’t be tripping every night.

If these things are happening, the root cause is likely wrong sizing — the silent destroyer.

Don’t continue damaging your system.

Take control today.

👉 Download the Globisun Solar Sizing App

The Solar Mistake That’s Silently Killing Your Power Backup