The chart provided below is an approximation of fuel consumption by a diesel generator based on its size and operation load. Please be advised this chart is intended to estimate how much fuel a generator will use during operations. It is not going to be exactly accurate for every generator due to a variety of changing factors.
| Generator Size (kW) | 1/4 Load (gal/hr) | 1/2 Load (gal/hr) | 3/4 Load (gal/hr) | Full Load |
|---|---|---|---|---|
| 20 | .06 | .09 | 1.3 | 1.6 |
| 30 | 1.3 | 1.8 | 2.4 | 2.9 |
| 40 | 1.6 | 2.3 | 3.2 | 4 |
| 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 | 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 | 14.4 |
| 230 | 5.3 | 8.8 | 12.5 | 16.6 |
| 250 | 5.7 | 9.5 | 13.6 | 18 |
| 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 | 18.5 | 26.4 | 35.7 |
| 600 | 13.2 | 22 | 31.5 | 48.2 |
| 750 | 16.3 | 27.4 | 39.3 | 53.4 |
| 1000 | 21.6 | 36.4 | 52.1 | 71.1 |
| 1250 | 26.9 | 45.3 | 65 | 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 |