A generator is a mechanical electrical device that is converted into electrical energy by some energy supply. The composition of diesel generators is a power supply device that uses some small power generation equipment, uses diesel as fuel, and uses diesel engines as power support to drive generators to generate electricity.

The structure of diesel generators generally consists of generators, control boxes, diesel engines, fuel tanks, storage batteries for starting and control, protection devices, emergency cabinets and other components. A diesel generator is a combination of a diesel engine and a generator (usually an alternator) to generate electricity.

Diesel generator usage scenarios: household power supply, office emergency power supply, power logistics reserves for large, medium and small enterprises, and emergency power generation for power outages.

Diesel compression ignition engines are usually designed to run on fuel oil, but there are some types suitable for use with other liquid fuels or natural gas.