How much fuel does a 1500 kVA generator use?

Approximate Diesel Fuel Consumption Chart

 

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This chart approximates the fuel consumption of a diesel generator based on the size of the generator and the load at which the generator is operating at.  Please note that this table is intended to be used as an estimate of 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.

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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

Diesel Generator Fuel Consumption Chart (in Gallons & Litres)

Introduction

The primary function of diesel generators is to offer backup power in different scenarios including residential properties as well as industries. They are highly efficient and reliable, and that’s why they are always in demand. In this case, understanding fuel consumption is very important to be able to manage operation costs and also ensure smooth power supply.

The fuel consumption of a generator depends on a range of different factors, including its capacity, size, power, and efficiency. According to users, diesel generators are comparatively a lot more fuel-efficient compared to other varieties such as gasoline. The consumption rate in this case is measured with the LPH (Litres Per Hour) or GPH (Gallons Per Hour) unit and may be different based on its load capacity.

Also note that load management systems and variable-speed engines maximize fuel use by altering engine speed in response to load demand. It is also commonplace in contemporary diesel generators. So, to ensure maximum fuel efficiency, regular maintenance is also essential. This includes cleaning the air filters, inspecting the fuel injectors, and fine-tuning the engine. Through the implementation of proper operating procedures and fuel monitoring, customers can optimize the dependability and performance of their diesel generators while reducing fuel expenses.

The chart below is an approximate amount of the fuel needed to power a diesel generator, based on the size of the generator in kilowatts (kW). The fuel consumption is shown at different load levels, so you can see how much fuel you will need and how efficient your generator is.

Generator Size (kW) ¼ Load (per hour) ½ Load (per hour) ¾ Load (per hour) Full Load (per hour) 20 0.6 gal/hr2.3 ltr/hr 0.9 gal/hr3.4 ltr/hr 1.3 gal/hr4.9 ltr/hr 1.6 gal/hr6.1 ltr/hr 30 1.3 gal/hr4.9 ltr/hr 1.8 gal/hr6.8 ltr/hr 2.4 gal/hr9.1 ltr/hr 2.9 gal/hr10.9 ltr/hr 40 1.6 gal/hr6.1 ltr/hr 2.3 gal/hr8.7 ltr/hr 3.2 gal/hr12.1 ltr/hr 4.0 gal/hr15.1 ltr/hr 60 1.8 gal/hr6.8 ltr/hr 2.9 gal/hr10.9 ltr/hr 3.8 gal/hr14.3 ltr/hr 4.8 gal/hr18.7 ltr/hr 75 2.4 gal/hr9.1 ltr/hr 3.4 gal/hr12.8 ltr/hr 4.6 gal/hr17.4 ltr/hr 6.1 gal/hr23.0 ltr/hr 100 2.6 gal/hr9.8 ltr/hr 4.1 gal/hr15.5 ltr/hr 5.8 gal/hr21.9 ltr/hr 7.4 gal/hr28.0 ltr/hr 125 3.1 gal/hr11.7 ltr/hr 5.0 gal/hr18.9 ltr/hr 7.1 gal/hr26.8 ltr/hr 9.1 gal/hr34.4 ltr/hr 135 3.3 gal/hr12.4 ltr/hr 5.4 gal/hr20.4 ltr/hr 7.6 gal/hr28.7 ltr/hr 9.8 gal/hr37.0 ltr/hr 150 3.6 gal/hr13.6 ltr/hr 5.9 gal/hr22.3 ltr/hr 8.4 gal/hr31.7 ltr/hr 10.9 gal/hr41.2 ltr/hr 175 4.1 gal/hr15.5 ltr/hr 6.8 gal/hr25.7 ltr/hr 9.7 gal/hr36.7 ltr/hr 12.7 gal/hr48.0 ltr/hr 200 4.7 gal/hr17.7 ltr/hr 7.7 gal/hr29.1 ltr/hr 11.0 gal/hr41.6 ltr/hr 14.4 gal/hr54.5 ltr/hr 230 5.3 gal/hr20.0 ltr/hr 8.8 gal/hr33.3 ltr/hr 12.5 gal/hr47.3 ltr/hr 16.6 gal/hr62.8 ltr/hr 250 5.7 gal/hr21.5 ltr/hr 9.5 gal/hr35.9 ltr/hr 13.6 gal/hr51.4 ltr/hr 18.0 gal/hr68.1 ltr/hr 300 6.8 gal/hr25.7 ltr/hr 11.3 gal/hr42.7 ltr/hr 16.1 gal/hr60.9 ltr/hr 21.5 gal/hr81.3 ltr/hr 350 7.9 gal/hr29.9 ltr/hr 13.1 gal/hr49.5 ltr/hr 18.7 gal/hr70.7 ltr/hr 25.1 gal/hr95.0 ltr/hr 400 8.9 gal/hr33.6 ltr/hr 14.9 gal/hr56.4 ltr/hr 21.3 gal/hr80.6 ltr/hr 28.6 gal/hr108.2 ltr/hr 500 11.0 gal/hr41.6 ltr/hr 18.5 gal/hr70.0 ltr/hr 26.4 gal/hr99.9 ltr/hr 35.7 gal/hr135.1 ltr/hr 600 13.2 gal/hr49.9 ltr/hr 22.0 gal/hr83.2 ltr/hr 31.5 gal/hr119.2 ltr/hr 48.2 gal/hr182.4 ltr/hr 750 16.3 gal/hr61.7 ltr/hr 27.4 gal/hr103.7 ltr/hr 39.3 gal/hr148.7 ltr/hr 53.4 gal/hr202.1 ltr/hr 1000 21.6 gal/hr81.7 ltr/hr 36.4 gal/hr137.7 ltr/hr 52.1 gal/hr197.2 ltr/hr 71.1 gal/hr269.1 ltr/hr 1250 26.9 gal/hr101.8 ltr/hr 45.3 gal/hr171.4 ltr/hr 65.0 gal/hr246.0 ltr/hr 88.8 gal/hr336.1 ltr/hr 1500 32.2 gal/hr121.8 ltr/hr 54.3 gal/hr205.5 ltr/hr 77.8 gal/hr294.5 ltr/hr 106.5 gal/hr403.1 ltr/hr 1750 37.5 gal/hr141.9 ltr/hr 63.2 gal/hr137.0 ltr/hr 90.7 gal/hr343.3 ltr/hr 124.2 gal/hr470.1 ltr/hr 2000 42.8 gal/hr162.0 ltr/hr 72.2 gal/hr273.3 ltr/hr 103.5 gal/hr391.7 ltr/hr 141.9 gal/hr537.1 ltr/hr

If you have any questions about diesel generator fuel consumption or are in the market for a new generator, contact us at Swift Equipment Solutions today!

Frequently Asked Questions About Fuel Consumption

How much fuel does a diesel generator use?

A diesel generator uses approximately 7% of its rated generator output. So, a 30kW generator will exhaust (30kW*7%) 2.1 gallons of diesel per hour.

What is the efficiency of a diesel generator?

Optimally, a diesel generator runs at 40% efficiency in its normal operating range.

At what temperature should diesel fuel be stored?

To keep the diesel from oxidizing, it should be stored below 70 degrees Fahrenheit or under 21 degrees Celsius.

How long can diesel fuel sit in a generator?

On average, diesel fuel can sit for 6-12 months without damaging your generator.

Are diesel generators fuel-efficient? 

Yes. As diesel generators use less fuel and operate longer, they are much more fuel-efficient than gasoline generators.

What is the minimum load ratio for a diesel generator?

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The minimum load ratio for a diesel generator is 30%.

How many hours can a diesel generator last?

Depending on its size, a diesel generator can run continuously for up to 8-12 hours without refueling. 

How do you control fuel consumption in a generator?

It’s very easy to control diesel consumption in a generator. For instance, remove the carbon deposits, do not overload/underload, strike the correct operating temperature, conduct regular maintenance, etc. 

What factors determine the fuel consumption of diesel engines?

There are several factors that make a diesel engine consume more fuel. These include faulty engines, poor quality engine oil, substandard fuel type, poor maintenance, untimely servicing, power, production of power, overuse, unfavorable weather conditions, etc.

How to increase the fuel efficiency of a diesel generator engine?

The better the condition of a diesel generator engine, the higher the fuel efficiency. You can do that by regularly servicing it, removing carbon accumulation on a regular basis, never overloading the engine, don’t underload it either, and maintaining the coolant temperature. Additionally, buying from a trusted dealer is always a good option.

Are diesel engines meant for high fuel efficiency?

Yes. Diesel generator engines are manufactured to deliver high-efficiency performance. This is one of the main reasons why diesel generators are used in industrial and commercial settings as they are high on performance, durable, efficient and consume less fuel.

What factors determine the fuel consumption of diesel engines?

There are several factors that make a diesel engine consume more fuel. These include faulty engines, poor quality engine oil, substandard fuel type, poor maintenance, untimely servicing, power, production of power, overuse, unfavorable weather conditions, etc.

How to increase the fuel efficiency of a diesel generator engine?

The better the condition of a diesel generator engine, the higher the fuel efficiency. You can do that by regularly servicing it, removing carbon accumulation on a regular basis, never overloading the engine, don’t underload it either, and maintaining the coolant temperature. Additionally, buying from a trusted dealer is always a good option.

Are diesel engines meant for high fuel efficiency?

Yes. Diesel generator engines are manufactured to deliver high-efficiency performance. This is one of the main reasons why diesel generators are used in industrial and commercial settings as they are high on performance, durable, efficient and consume less fuel.

 

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