Dual-Fuel Gas Generator Sets: Biogas & Natural Gas Fuel-Switching Solutions

In projects where the demand for fuel flexibility is increasingly high—specifically those requiring gas generator sets capable of switching between biogas and natural gas operation—please take note of the critical technical point:

• The two gases cannot be mixed and used simultaneously;

• The unit supports operation in fuel-switching mode.

Users can select a fuel source that is either more cost-effective or more stable, depending on the on-site gas supply conditions.

Operating Principles of Fuel Switching

The unit must be equipped with two independent, specialized control systems and gas mixture systems, with combustion parameters adjusted according to the fuel type. The mode must be set before operation:

• Biogas Operating Mode

• Natural gas Operating Mode

Once the setting is complete, the unit will operate stably in this mode until switched manually or by the system.

Typical Applications

Widely used in projects where the gas source is unstable or subject to periodic changes: In many projects, biogas is used as the primary fuel, with natural gas as the backup fuel.

• Livestock and poultry farming biogas power generation projects

• Sewage treatment plants

• Landfill gas power generation projects

• Industrial parks with access to pipeline natural gas

• Off-grid or distributed energy systems

• Agricultural resource recycling projects

Core Advantages

• More flexible fuel selection;

• Reduced dependence on a single gas source;

• Stable performance maintained under dual-fuel operation;

• Optimized operating costs;

• Suitable for combined heat and power (CHP) systems;

• Lower carbon emissions advantage when using biogas.

Important Technical Notes

Although the unit supports both fuels, it must be noted that biogas and natural gas cannot be mixed simultaneously. The two gases differ in the following aspects:

• Different methane content;

• Different calorific value;

• Different combustion characteristics.