Which metric related to ISO 50001 is used to monitor energy performance?

• A. Baseline energy use and target energy use (or EnPI)
• B. Emissions factors and energy price
• C. Annual energy cost and peak demand
• D. Renewable energy share and energy intensity

Answer: (A)

In ISO 50001, energy performance is tracked using a formal metric that compares actual energy use to a defined baseline and against set targets. The Energy Performance Indicator (EnPI) is the standard way to quantify this, often aligning energy use with a baseline and a target to show improvement over time. By establishing baseline energy use and a target energy use, you create a clear measure of progress: are you consuming less energy for the same outputs, or more efficiently overall? EnPI provides a normalized, comparable way to monitor that performance, and the baseline/target framework makes it easy to see trends and drive continual improvement.

Other choices describe factors like costs, emissions, peak demand, or energy mix, rather than the dedicated metric ISO 50001 uses to monitor ongoing energy performance.