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Comparison between Diesel Generator Sets and Gas Generator Sets

Oct 31, 2025 | Technical Literature | 0 comments

Diesel Generator Sets

Diesel generator sets are generally designed and manufactured with high quality, enabling them to withstand long-term operation and heavy-load work. Their durability makes them an ideal choice for long-term use and emergency situations.

As a common type of fuel, diesel is relatively easy to obtain in the market.

Diesel generator sets need to store a certain amount of diesel fuel and ensure the stability of supply. Storing and supplying diesel requires certain space and management costs, especially in cases of long-term use and large-scale applications.

According to on-site information, the price of 1 liter of diesel is about 7 yuan. The efficiency of diesel generator sets is usually between 34% and 45%, and calculations show that 1 liter of diesel can generate approximately 3-4 kWh of electricity.

Diesel generator sets produce relatively high noise during operation, which can cause disturbance and impact on the surrounding environment and personnel. Their emissions contain some harmful substances, causing certain pollution to the environment.

Gas Generator Sets

Gas generator sets use relatively clean and low-cost flammable gases, such as natural gas, biogas, gas, and industrial exhaust gas. Generator sets using these fuels not only operate reliably and at low cost but also turn waste into treasure without causing pollution.

Due to the sufficient combustion of gas in the cylinder, the engine has less carbon deposition and relatively less component wear. Therefore, the maintenance intervals can be longer, reducing the frequency and cost of maintenance.

They can provide power support at extraction sites for natural gas, shale gas, and coalbed methane. They are also used in data centers, distributed power sources, peak shaving of power grids, emergency power supplies, and independent power grids.

Advanced gas generator sets, through intelligent control and optimized combustion technology, can achieve an energy utilization rate of over 90%. Their emission control is more precise, aligning with carbon neutrality goals.

The NOx emissions of natural gas generator sets are approximately 20% of those of diesel generators, with lower carbon emissions. Using gases like gas as fuel turns waste into treasure—if methane in gas is emitted into the atmosphere, the greenhouse effect of methane of the same mass is about 26 times that of carbon dioxide. For enterprises or projects that prioritize environmental protection, this is a better choice.

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