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Diesel Generator Fuel Consumption Rates by Load
Approximate diesel fuel consumption (gallons per hour) by generator size at roughly half and full load. Actual usage varies. Planning estimates only.
| Generator size | ~50% load (gal/hr) | ~100% load (gal/hr) |
|---|---|---|
| 20 kW | 0.6 | 1.3 |
| 56 kW | 1.5 | 3.4 |
| 100 kW | 2.6 | 6.0 |
| 200 kW | 5.0 | 11.6 |
| 250 kW | 6.3 | 14.4 |
| 320 kW | 7.9 | 18.0 |