The ratio created by edinn to measure Consumption Efficiency is called OCE (Overall Consumption Effectiveness).

OCE measures the consumption efficiency of all resources, including energy efficiency. It is defined as:

OCE = (Maximum Cost - Real Cost) / (Maximum Cost - Minimum Cost)

Meaning:

    • 50% OCE means that the process could double its consumption efficiency by producing the same but consuming half.
    • 100% OCE means that the process cannot consume less.