Choosing Between 800KW and Two 400KW Diesel Generators

When deciding whether to purchase an 800KW diesel generator or two 400KW diesel generators for parallel operation, the power requirement is the key factor. If a single generator can meet the power demand, using one unit is preferable to avoid energy waste. Typically, an 800KW diesel generator from Guangxi Dingbo Generator Set Manufacturing Co.,Ltd. costs more than two 400KW units (though specific prices depend on manufacturer quotes). Additionally, the installation, maintenance, and spare parts replacement costs for two parallel units are higher, involving more complex technology, additional equipment, and increased workload. Improper operation of two parallel 400KW generators can also lead to serious consequences. Finally, the required engine room size differs between one and two units, which is also dependent on power requirements.

If the user has significantly varying load demands (e.g., sometimes 1000KW and sometimes 500KW), two parallel generators are a suitable choice. For stable loads, a single diesel generator is preferred. The advantages of parallel operation of two diesel generators are as follows:

1.Enhanced reliability and continuity of the power supply system: When multiple generators are connected in parallel to form a power grid, the supply voltage and frequency remain stable, enabling the diesel generators to withstand the impact of large load changes.

2.Improved economy: The appropriate number of small-power generators can be put into operation based on the load size, reducing fuel and oil waste caused by operating a high-power generator at low load. For example, if a user normally requires 800KW but sometimes only needs 400KW, choosing one 800KW generator would be more costly than two 400KW units. Moreover, the oil and fuel consumption would be significantly lower with the two smaller units. From a cost perspective, it is advisable to select two 400KW generators for parallel operation. When only 400KW is needed, one unit can be operated; for higher loads, the second unit can be started and connected in parallel.

3.Convenient maintenance: Multiple parallel diesel generators allow for centralized scheduling and distribution of active and reactive loads, facilitating timely maintenance and repairs.

4.Greater flexibility for future expansion: Only the necessary parallel equipment for the current power requirement needs to be installed initially. When future expansion of the power grid capacity is required, additional generators can be easily integrated into the parallel system, making the initial investment more economical.

From the perspective of the core service of Dingbo Electric Power's diesel generator maintenance manufacturer, the relevant technology maturity it has mastered is very high. Simply put, we can easily deal with the diesel motor unit failure problems encountered by customers in different industries. More importantly, we can solve the difficult problems of multiple types of related equipment and meet customer needs. As a professional supplier of diesel generator sets, Dingbo not only provides high-quality diesel generator set products to users, but also is a professional expert in generator set maintenance and after-sales service. With a technical team of more than ten years of experience in the generator industry, Dingbo is available 24 hours a day to answer your questions. Moreover, Guangxi Dingbo Generator Set Manufacturing Co.,Ltd. has established a nationwide after-sales service network, providing you with a better choice for both products and services.