- Exam Code: CEM
- Exam Name: Certified Energy Manager (CEM)
- Certification Provider: AEE
- Corresponding Certification:Energy Management
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AEE CEM Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Operations, Maintenance and Commissioning | 5% | - Commissioning and retro-commissioning - Maintenance best practices |
| Electrical Power Systems and Motors | 15% | - Power factor correction and load management - Power distribution and quality - Motor systems, efficiency and controls |
| HVAC Systems and Building Envelope | 15% | - Load calculation and system selection - Thermal envelope performance - Heating, ventilation and air conditioning |
| Energy Storage Systems | 3–5 | - Storage technologies and applications - Integration and benefits |
| Industrial Systems | 6–8 | - Process energy efficiency - Compressed air, pumping, and drying systems |
| Lighting Systems | 10% | - Lighting technologies and efficiency - Daylighting integration - Design and control strategies |
| Building Automation and Controls | 5% | - Automation and optimization - Building management systems - Control systems and strategies |
| Energy Audits and Instrumentation | 10% | - Audit levels and methodologies - Measurement tools and instrumentation - Data collection and analysis - Energy performance indicators |
| Boiler and Steam Systems | 4–6 | - Operation and efficiency - Maintenance and optimization |
| Energy Accounting and Economics | 15% | - Utility rate structures and tariffs - Time value of money, NPV, IRR, payback analysis - Energy units and conversions - Life cycle costing and economic analysis |
| Energy Savings Performance Contracting | 5% | - Guaranteed savings and risk allocation - Contract structures and financing |
| Distributed Generation and Renewable Energy | 4–6 | - Grid integration and economics - Combined heat and power (CHP) - Solar, wind, biomass, geothermal |
| Codes, Standards and Regulations | 5% | - Sustainability policies and frameworks - Energy efficiency codes and standards - Compliance and reporting requirements |
| Measurement and Verification | 5% | - Baseline development and savings calculation - M&V protocols and standards |
AEE Certified Energy Manager (CEM) Sample Questions:
A facility has the thermal cooling load profile shown in the table below. The utility rate tariff has an on-peak time-of-use billing period that begins at 10:00 a.m. and ends at 7:00 p.m. Calculate the storage capacity required for a load-shifting operating strategy, to make sure that no thermal cooling Is generated by the chiller during the on-peak utility rate period.
- A. 72 GJ
- B. 66 GJ
- C. 48 GJ
- D. 84 GJ
Correct Answer: B 🗳️
A building is conditioned by an air-conditioning and heating system. What technology can directly prevent simultaneous heating and cooling of the space?
- A. Indoor air quality sensors
- B. Variable air volume control
- C. Derivative control
- D. Setback thermostat
- E. Air handling unit
Correct Answer: B 🗳️
The temperature in an unconditioned mechanical room is found to typically be around 23°C warmer than ambient air. If the air intake of an air compressor located in the mechanical room is routed through a nearby wall so that ambient air is fed directly to the air compressor's intake, what impact can be expected on the air compressor's energy requirement?
- A. Decrease energy use by 3.8%
- B. Increase energy use by 7.6%
- C. Increase energy use by 3.8%
- D. No measureable change in energy use
- E. Decrease energy use by 7.6%
Correct Answer: E 🗳️
Which of the following best describes a thermally-light building?
- A. A building filled with manufacturing and process equipment
- B. An underground storage facility
- C. A single-story office building where the load on the heating and cooling system is proportional to the outside air (ambient) temperature
- D. A computer data center housing multiple internet server racks
Correct Answer: C 🗳️
Using the lumen method, calculate the number of luminaires (fixtures) required to light a room to 200 lux.
Each luminaire has 2 fluorescent lamps, 3,000 lumens per lamp. The room is 20 meters by 30 meters. The total light loss factor (LLF) is 0.70 and the luminaire coefficient of utilization (CU) is 0.80.
- A. 48 luminaires
- B. 24 luminaires
- C. 36 luminaires
- D. 12 luminaires
- E. 60 luminaires
Correct Answer: C 🗳️
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