Here is a quick way to see your monthly savings. Petrol price used: about ₦1,500 per litre (Port Harcourt, October 2026).
Monthly fuel cost
| Litres per day | Per month (30 days) | Per year |
|---|---|---|
| 3 | About ₦135,000 | About ₦1.62M |
| 5 | About ₦225,000 | About ₦2.7M |
| 8 | About ₦360,000 | About ₦4.32M |
| 10 | About ₦450,000 | About ₦5.4M |
| 15 | About ₦675,000 | About ₦8.1M |
Add about ₦15,000 a month for servicing and repairs.
What solar removes
A properly sized system replaces most of that fuel. So your monthly saving ≈ your fuel bill.
Quick payback
| System | 5L/day user | 8L/day user |
|---|---|---|
| 3kVA (~₦2.8M) | About 12 months | About 7 months |
| 6kVA (~₦4.9M) | About 20 months | About 13 months |
The right size depends on what you run, not just your fuel. Use the calculator.
