Generator Fuel Cost Calculator Nigeria
Calculate hourly, daily, and monthly fuel consumption and running costs for petrol (PMS) and diesel (AGO) generators (0.9kVA to 30kVA+) in Nigeria across different electrical loads.
Generator Fuel Cost Calculator Nigeria
Methodology
With frequent public power grid outages in Nigeria, alternative captive generation using petrol (PMS) and diesel (AGO) generators is essential for households and businesses. Fuel consumption varies directly with generator capacity (kVA/kW) and load factor (50%, 75%, 100%). In addition to raw fuel costs at current pump prices, routine maintenance (engine oil, spark plugs, filters) adds approximately 8% to 10% to total operational expenditures.
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User-provided inputs
This calculator uses only the values you enter. It does not automatically apply tax law, statutory deductions, lender fees, or live exchange rates.
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Formula basis
The formula is shown openly and no country rate is inserted automatically.
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Your estimate
AfricalHub is an independent private platform not affiliated with any government agency. Calculations are for educational planning only. Verify official filings with the relevant revenue authority or a qualified professional.
Generator Fuel Consumption & Running Cost Matrix
| Generator Size | Fuel Type | Avg. Litres / Hour (75% Load) | Fuel Cost / Hour (₦850/L PMS, ₦1,200/L AGO) | Maintenance Factor |
|---|---|---|---|---|
| 0.9kVA (Small / I-pass-my-neighbor) | Petrol (PMS) | 0.6 L/hr | ₦510 / hr | +8% for oil/plugs |
| 2.5kVA – 3.5kVA (Small Household) | Petrol (PMS) | 1.3 L/hr | ₦1,105 / hr | +8% for service |
| 5.0kVA – 8.0kVA (Medium Household/Office) | Petrol (PMS) | 2.2 L/hr | ₦1,870 / hr | +8% for service |
| 10kVA – 15kVA (Large House/Business) | Diesel (AGO) | 2.8 L/hr | ₦3,360 / hr | +10% for filter/oil |
| 20kVA – 30kVA (Commercial / Facility) | Diesel (AGO) | 5.5 L/hr | ₦6,600 / hr | +10% for service |
Sources
User-provided inputs
This calculator uses only the values you enter. It does not automatically apply tax law, statutory deductions, lender fees, or live exchange rates.
Frequently asked questions
How much petrol does a 2.5kVA – 3.5kVA generator consume per hour in Nigeria?
A typical 2.5kVA to 3.5kVA petrol generator consumes between 1.1 and 1.5 litres of PMS per hour at a standard 70%–75% electrical load.
How do generator running costs compare to NERC grid electricity?
Running a petrol generator typically costs ₦350 to ₦600 per kWh of usable energy, compared to grid Band A at ~₦206.80/kWh and Band B at ~₦63/kWh, making grid electricity substantially cheaper whenever available.
How often should generator engine oil be changed in Nigeria?
Most small petrol generator manufacturers recommend changing engine oil every 50 to 100 operating hours (roughly every 1 to 2 weeks under heavy daily backup usage).