What is the hourly fuel consumption of a 300kw diesel generator?
2 Answers
300kw generator's hourly fuel consumption reference value is: 72.3-96.4L. Generally speaking, the fuel consumption of diesel generators is related to the following two factors: 1. Fuel consumption rate, different brands of diesel generator sets have different fuel consumption rates, resulting in different oil consumption; 2. The size of the electrical load, a larger load means greater throttle and higher fuel consumption, while a smaller load results in relatively lower fuel consumption. The specific calculation method for diesel generator fuel consumption is as follows: one liter of diesel is approximately equal to 0.84-0.86 kilograms (1L=0.8-0.85KG). Most diesel generator manufacturers use the parameter G/KW.H, which means how many grams (G) of oil the generator set consumes per kilowatt per hour, and then converts the unit to liters (L) to determine the hourly fuel cost.
I previously helped a friend test a 300 kW diesel generator in the community and found that its fuel consumption generally ranges between 70 to 90 liters per hour, depending on usage. At full load, it approaches the upper limit, while running at half power may reduce consumption to around 50 liters. The key factor is proper maintenance—like a clogged air filter increasing fuel usage, similar to diesel trucks. I regularly check the oil and filters to save costs and recommend scheduled maintenance for efficient operation and reduced fuel waste, which is practical for long-term outdoor work.
