Ace the Certified Energy Manager Exam 2025 – Power Up Your Career Potential!

A decrease in energy use intensity (EUI) typically indicates better energy efficiency and operational performance within a building or facility. EUI is a metric that measures how much energy a building uses per square foot of space or per unit of production over a given time period. When EUI decreases, it suggests that the building is using less energy for the same amount of service or output, which directly points to improvements in energy efficiency.

This improved efficiency can result from upgrades in equipment, better insulation, enhanced operational practices, or successful implementation of energy management strategies. By using energy more effectively, organizations can not only reduce their energy consumption but also lower their operational costs in the long run, while also contributing positively to sustainability efforts.

In contrast, options related to increased operating costs, decreased building occupancy, and more energy waste would suggest a deterioration in energy performance or inefficient practices, which are contrary to what a decrease in EUI signifies.