This chart approximates the fuel consumption of a diesel generator based on the generator’s size and the load at which the generator is operating at. Please note that this table is intended to be used to estimate how much fuel a generator uses during operation and is not an exact representation due to various factors that can increase or decrease the amount of fuel consumed.
| Generator Size (kW) | 1/4 Load (gal/hr) | 1/2 Load (gal/hr) | 3/4 Load (gal/hr) | Full Load (gal/hr) |
|---|---|---|---|---|
| 20 | 0.6 | 0.9 | 1.3 | 1.6 |
| 30 | 1.3 | 1.8 | 2.4 | 2.9 |
| 40 | 1.6 | 2.3 | 3.2 | 4.0 |
| 60 | 1.8 | 2.9 | 3.8 | 4.8 |
| 75 | 2.4 | 3.4 | 4.6 | 6.1 |
| 100 | 2.6 | 4.1 | 5.8 | 7.4 |
| 125 | 3.1 | 5.0 | 7.1 | 9.1 |
| 135 | 3.3 | 5.4 | 7.6 | 9.8 |
| 150 | 3.6 | 5.9 | 8.4 | 10.9 |
| 175 | 4.1 | 6.8 | 9.7 | 12.7 |
| 200 | 4.7 | 7.7 | 11.0 | 14.4 |
| 230 | 5.3 | 8.8 | 12.5 | 16.6 |
| 250 | 5.7 | 9.5 | 13.6 | 18.0 |
| 300 | 6.8 | 11.3 | 16.1 | 21.5 |
| 350 | 7.9 | 13.1 | 18.7 | 25.1 |
| 400 | 8.9 | 14.9 | 21.3 | 28.6 |
| 500 | 11.0 | 18.5 | 26.4 | 35.7 |
| 600 | 13.2 | 22.0 | 31.5 | 42.8 |
| 750 | 16.3 | 27.4 | 39.3 | 53.4 |
| 1000 | 21.6 | 36.4 | 52.1 | 71.1 |
| 1250 | 26.9 | 45.3 | 65.0 | 88.8 |
| 1500 | 32.2 | 54.3 | 77.8 | 106.5 |
| 1750 | 37.5 | 63.2 | 90.7 | 124.2 |
| 2000 | 42.8 | 72.2 | 103.5 | 141.9 |
| 2250 | 48.1 | 81.1 | 116.4 | 159.6 |
