The Golden Rule of Fuel Efficiency and Load for Diesel Generator Sets

For enterprises that rely on diesel generators to ensure power supply, fuel consumption is the core cost of continuous operation. But did you know that fuel consumption does not simply increase linearly with increasing load? Understanding the nonlinear relationship between load and fuel consumption is the key to optimizing operation and reducing costs.

Low load, low efficiency, and fuel consumption?

When the unit operates at low loads (such as below 30%), fuel combustion is insufficient, and a large amount of energy is converted into heat rather than electricity, resulting in a significant increase in fuel consumption per unit output power (fuel consumption rate g/kWh), causing unnecessary waste.

Where is the efficient operating range?

Practice and testing have shown that most diesel generator sets can achieve optimal fuel efficiency in the 70% -80% rated load range. At this point, the combustion is complete, the mechanical efficiency is high, and the fuel consumption rate drops to the lowest point, achieving maximum energy utilization.

Optimization suggestions:

Scientific load planning: Try to keep the unit operating close to the optimal load range.

Intelligent matching power: Select units with power that matches actual needs to avoid "big horses pulling small cars".

Make good use of intelligent control (optional solution): Our advanced units can be equipped with an intelligent load management system to monitor and optimize load distribution in real time, ensuring efficient operation.

Shandong Supermaly Generation Equipment Co., Ltd. is well aware of customers' dual pursuit of economy and reliability. We are experts in providing a full range of 8-3000KW and comprehensive power solutions, offering efficient diesel generator sets across all power ranges and professional energy optimization advice. We help you accurately control your load, significantly reduce operating costs, and maximize the value of every drop of fuel.