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Certified Energy Manager Audit & Billing Flashcards

7 cards from real CEM practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Certified Energy Manager Audit & Billing flashcards as text

  1. When comparing energy performance across multiple facilities, a CEM should normalize consumption data to account for:

    Answer: Weather variations and occupancy differences

    Normalization for weather (heating/cooling degree days) and occupancy ensures valid comparisons across dissimilar facilities and time periods.

  2. A facility's Energy Use Intensity (EUI) is calculated as:

    Answer: Annual energy consumption (kBtu) divided by gross floor area (sq ft)

    EUI equals total annual energy use in kBtu divided by gross floor area in square feet, enabling benchmarking across similar building types.

  3. Which document should a CEM review FIRST when beginning a billing analysis for a commercial facility?

    Answer: Utility tariff schedules and rate structures

    Understanding the applicable tariff and rate structure is essential before analyzing any billing data, as rates determine cost drivers.

  4. A facility is on a Time-of-Use (TOU) rate. Operations want to run a 500 kW chiller. To minimize costs, it should preferably operate during:

    Answer: Off-peak hours (nights and weekends)

    Off-peak hours have the lowest energy and demand rates under TOU schedules, minimizing operating costs for large loads.

  5. What is the purpose of a baseline energy model in an energy audit?

    Answer: To establish pre-retrofit energy consumption for savings verification

    The baseline model represents pre-retrofit conditions against which post-retrofit performance is compared to verify energy savings.

  6. A CEM reviews 24 months of utility data and finds consumption in months 13–24 is 12% higher than months 1–12 despite no operational changes. The MOST likely cause is:

    Answer: Increased equipment runtime due to aging

    Aging equipment typically loses efficiency over time, causing increased energy consumption even with constant operational schedules.

  7. Coincident demand charges are based on a customer's demand during:

    Answer: The utility system's peak demand period

    Coincident demand is the customer's load measured specifically during the utility system's peak period, often used by wholesale utilities.