Certified Energy Auditor Certification Certified Energy Auditor Data Collection and Analysis Questions and Answers 2

Question 1

When conducting a preliminary energy audit, which data source is most critical for establishing a building's baseline energy consumption?

Accepted Answer

Utility billing history for at least 12 months

Answer

A minimum of 12 months of utility bills captures seasonal variations and establishes an accurate baseline for energy consumption analysis.

Question 2

What is the primary purpose of normalizing energy data using heating degree days (HDD) and cooling degree days (CDD)?

Accepted Answer

To account for weather variations when comparing energy use across different periods

Answer

Degree day normalization removes the effect of weather differences so energy use can be fairly compared across months or years.

Question 3

During a walk-through energy audit, an auditor measures lighting power density at 1.8 W/sq ft in an office space. According to ASHRAE 90.1, the allowance is 0.82 W/sq ft. What does this indicate?

Accepted Answer

There is a significant energy conservation opportunity in lighting

Answer

A lighting power density more than double the ASHRAE 90.1 allowance indicates substantial potential for energy savings through lighting upgrades.

Question 4

Which regression analysis technique is most commonly used to develop a baseline energy model from utility data?

Accepted Answer

Three-parameter change-point model

Answer

The three-parameter change-point model effectively captures the relationship between energy use and outdoor temperature, including the balance point where heating or cooling begins.

Question 5

An energy auditor collects interval meter data showing 15-minute demand readings. What analysis is best performed with this granularity of data?

Accepted Answer

Identification of base load and peak demand patterns

Answer

Fifteen-minute interval data reveals detailed load profiles that identify base load, peak demand timing, and potential demand reduction opportunities.

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Certification Certified Energy Auditor Data Collection and Analysis Questions and Answers 2