What is the Formula for Determining the Diesel Consumption of your Generator?

Calculating the diesel consumption of your generator is not a Herculean task. In fact, what you need to get this done is just a basic background on Mathematics and considering some not-so-complicated formulas.

Before you proceed with the formula for fuel consumption of diesel engine generators, it is best if you convert the KVA power unit to kilowatts (kW). You can easily do this since most diesel generators come with a three-phase output in which power is equal to Voltage X current X square root of 3 X power factor. 

Power factor is simply the ratio of the actual power consumed to perform a task versus the apparent power that is supplied along the circuit.

If you want to know more about fuel-efficient generators, you can contact Gnerator for professional guides. 

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How to Calculate the Diesel Generator Consumption per Hour?

For example, if you have a 10kVA  generator set that consumes diesel as follows:

1/4 load- generator consumes 1.5 ltr/hour

1/2 load- generator consumes 2 ltr./hour

3/4 load-generator consumes 3 ltr./hour

Full load- generator consumes 5 ltr./hour

If this generator is equipped with a 3-phase, 400-volt output with connection points enough to provide three single phases 230 volts supplies, each supply will be rated with 3.3 kVA and be capable of 3300/230= 14.3 amps. 

Now, if you connect a load consisting of different heating appliances drawing 8, 11, and 13 amps respectively; your calculations will be: 8 X 230 + 11 X 230 + 13 X 230 = 7360 watts/ 7.36 kW (about 3/4 load). Hence, the generator’s fuel consumption is about 3 ltr./hour.

This formula is applicable for generators of all sorts. Thus, it is very easy to compute the 100kVA diesel generator fuel consumption, 125 kVA diesel generator fuel consumption, and 200kVA diesel generator fuel consumption.

If you want more help regarding diesel generator efficiency calculation, contact Gnerator now.

You can ask experts from Gnerator if you want to learn how to determine the 100kVA generator diesel consumption, 300 kVA generator fuel consumption, 125 kVA generator diesel consumption, and 100kVA generator fuel consumption.

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Get Fuel-efficient Generator Sets at Gnerator


Reducing the Cummins 500 kVA generator diesel consumption is not impossible.   

What you need is to find genuine spare parts and reliable Cummins power generator brands.

In Malaysia, you can find genuine Cummins power generators at Gnerator. If you are looking for the perfect backup generator for residential use, or maybe for server rooms, you can also choose from our rosters of world-class generators.

Gnerator is a trusted genset supplier in Malaysia for so many years; hence, you are assured of our premium service.

So, whether you are planning to buy a land diesel generator, generator with ATS, or marine generator sets, or just want to get some tips on how to reduce the 125 kVA generator consumption per hour, just call Gnerator for professional assistance and tips.

Remember, Gnerator knows how to find the best generator for you without compromising your budget.