What efficiency percentage defines a 'high' fuel utilization system?

A fuel utilization system that achieves an efficiency of 90% and above is classified as 'high.' This high level of efficiency indicates that the system effectively converts energy from fuel into useful output, minimizing energy loss. The importance of this classification stems from the growing focus on energy efficiency and sustainability, as higher efficiency systems can lead to reduced fuel consumption and lower greenhouse gas emissions, aligning with environmental goals.

While other efficiency ranges might indicate varying levels of performance, they do not reach the benchmark that is set for high efficiency. For example, systems that fall below 90% do not maximize energy use to the same extent, leading to increased operational costs and environmental impact. Therefore, recognizing the threshold of 90% and above is critical for identifying systems that offer superior performance and sustainability benefits.