Methods and Strategies 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 Methods and Strategies flashcards as text
Which energy management strategy prioritizes actions based on their potential return on investment and ease of implementation?
Answer: Opportunity matrix analysis
An opportunity matrix plots energy projects by cost-effectiveness versus implementation difficulty, helping managers prioritize high-value, low-barrier actions first.
A CEM implements an energy information system (EIS). What is the PRIMARY purpose of this system?
Answer: Provide real-time monitoring and reporting of energy use
An EIS collects, stores, and displays real-time energy consumption data, enabling managers to detect anomalies and measure savings.
What does the term 'energy intensity' measure in the context of energy management strategies?
Answer: Energy consumed per unit of output or floor area
Energy intensity normalizes consumption against production output or building area, allowing meaningful performance comparisons across different periods or facilities.
A plant manager wants to reduce compressed air system energy use by 20%. Which strategy should be investigated FIRST?
Answer: Conduct a leak detection and repair survey
Compressed air leaks typically waste 20–30% of output, making leak detection the highest-priority, lowest-cost first step.
Which of the following BEST describes the 'no-cost/low-cost' tier in a phased energy management strategy?
Answer: Operational and behavioral changes requiring minimal expenditure
No-cost/low-cost measures — such as adjusting setpoints, fixing scheduling errors, and staff awareness programs — are implemented first to generate quick savings with negligible capital outlay.
When conducting an ASHRAE Level II energy audit, what is included beyond a Level I audit?
Answer: Energy use breakdown and capital project analysis with savings estimates
A Level II audit builds on Level I by analyzing energy end-use in detail and providing cost and savings estimates for capital-intensive projects.
A CEM recommends implementing demand response participation for a large commercial facility. What is the PRIMARY energy strategy benefit?
Answer: Lowering peak demand charges and providing utility revenue
Demand response allows facilities to curtail load during grid stress events, reducing peak demand charges and often earning utility incentive payments.