Energy Use Intensity (EUI) is commonly expressed in which units?

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Study for the ASHRAE BCxP Test. Access flashcards and multiple choice questions, with hints and explanations for each question. Prepare confidently for your certification!

Multiple Choice

Energy Use Intensity (EUI) is commonly expressed in which units?

Explanation:
Energy Use Intensity is a measure of how much energy a building uses per unit area over a year. That means it should express energy per area per time. In US practice, the standard unit is MBtu/ft²·yr because it conveys annual energy consumption per square foot on a scale that suits typical building data. A unit like Btu/h·ft² would be a rate (energy per hour per area), not annual energy, so it isn’t appropriate for EUI. While SI equivalents such as kWh/m²·yr or J/m²·yr exist, MBtu/ft²·yr is the conventional expression used in many BCxP and benchmarking contexts.

Energy Use Intensity is a measure of how much energy a building uses per unit area over a year. That means it should express energy per area per time. In US practice, the standard unit is MBtu/ft²·yr because it conveys annual energy consumption per square foot on a scale that suits typical building data. A unit like Btu/h·ft² would be a rate (energy per hour per area), not annual energy, so it isn’t appropriate for EUI. While SI equivalents such as kWh/m²·yr or J/m²·yr exist, MBtu/ft²·yr is the conventional expression used in many BCxP and benchmarking contexts.

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