Generator Diesel Calculator
Fuel use is derived from official manufacturer performance curves (Cummins, Perkins, CAT, FG Wilson, Volvo, Baudouin) with linear interpolation between load points.
Result
Manufacturer-average estimate
Generator size
100 kVA
Electrical output
~ 80 kW
Fuel type
Diesel
Engine brand
Diesel engine
Fuel tank
150–250 L
Est. weight
900–1,800 kg
Typical runtime
10–16 h
Noise level
70–80 dB
Dimensions (L×W×H)
2.4 × 1.0 × 1.5 m
Typical applications
WorkshopsOfficesRetailSmall factories
Fuel consumption
Litres/hour
16.0 L
Daily litres
128.0 L
Weekly
896.0 L
Monthly
3840 L
Annual
46720 L
For your period
3840 L
Cost
Daily cost
377.6 AED
Monthly cost
11328 AED
Annual cost
137824 AED
For your period
11328 AED
Cost per kWh
0.787 AED
CO₂ emissions
Daily
343.0 kg
Monthly
10.29 t
Annual
125.21 t
Refuel time
A 250 L tank will last approximately 15.6 hours.
Efficiency tip
Optimal range. Diesel generators are most fuel-efficient between 70–85% load.Load comparison table
| Load | kW | L/h | Cost/hr |
|---|---|---|---|
| 10% | 8 | 2.8 | 8.38 AED |
| 25% | 20 | 7.1 | 20.95 AED |
| 50% | 40 | 11.3 | 33.34 AED |
| 75% | 60 | 16.0 | 47.20 AED |
| 100% | 80 | 21.1 | 62.25 AED |
Fuel consumption vs load
Compare two generators
Fuel consumption values are based on published manufacturer performance data and industry-average estimates. Actual consumption may vary depending on generator brand, engine condition, maintenance, ambient temperature, fuel quality, altitude and operating conditions.