Updated: Aug 25, 2026
No. of Questions: 146 Questions & Answers with Testing Engine
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| Certification Vendor: | Association of Energy Engineers (AEE) |
| Exam Name: | Certified Energy Manager (CEM) Examination |
| Exam Number: | CEM |
| Passing Score: | 70% (typical passing threshold) |
| Exam Price: | Varies by region and training package (typically bundled with CEM training program) |
| Related Certifications: | Energy Manager in Training (EMIT) Certified Energy Auditor (CEA) Measurement & Verification Professional (CMVP) |
| Real Exam Qty: | Approximately 100 (may vary by exam version) |
| Available Languages: | English |
| Exam Duration: | 240 minutes |
| Certificate Validity Period: | 3 years (renewal required with continuing education credits) |
| Exam Format: | Multiple-choice |
| Recommended Training: | Energy Management Training Resources (AEE) AEE Official CEM Training Course |
| Exam Registration: | AEE Certification Overview Certified Energy Manager Program |
| Sample Questions: | AEE CEM Sample Questions |
| Exam Way: | In-person or proctored exam (often delivered after CEM training course; format may vary by provider) |
| Pre Condition: | Recommended: experience in energy management or completion of AEE-approved CEM training program |
| Official Syllabus URL: | https://www.aeecenter.org/certification/certified-energy-manager-cem/ |
| Section | Objectives |
|---|---|
| Energy Accounting and Economics | - Energy budgeting and benchmarking - Energy cost analysis and tariff structures - Life-cycle cost analysis and financial evaluation |
| Renewable Energy and Sustainability | - Renewable energy integration - Sustainable energy management practices |
| Electrical Systems | - Power factor correction - Electrical distribution systems - Motors and drives efficiency |
| Lighting Systems | - Lighting efficiency improvement strategies - Lighting technologies and controls |
| Energy Audits and Management | - Energy audit levels and procedures - Data collection and analysis methods - Energy management planning |
| Mechanical and Thermal Systems | - Boilers, steam systems, and thermal distribution - Compressed air systems - HVAC systems and optimization |
| Measurement and Verification | - Energy savings calculation methods - M&V principles and protocols |
1. A new lighting system costs $60,000. The new lighting system has a 15-year life and the minimum required rate of return (MARR) is 15%. How much must the new lighting system save to be life-cycle cost effective?
A) $33,200/year
B) $27,090/year
C) $12,556/year
D) $15,650/year
E) $10,260/year
2. A concentrating solar thermal system collects 5 GJ/h of thermal heat, which is delivered to a 94% efficient hot water generator. The hot water generator is used to raise the water temperature from 15°C to 65°C. The specific heat of water (Cp) is 4.2 kJ/kg-°C. What flow rate (liter/second) of hot water can be delivered from the hot water generator?
A) 9.2 liter/second
B) 6.2 liter/second
C) 4.2 liter/second
D) 12.0 liter/second
3. A large office building is entirely fitted out with ten-thousand new T5 fluorescent lamps today, which will be operational for 2,500 hours per year. The lamps are supposed to last 17,860 hours. How many months from today will be the best schedule for group relamping (total replacement of all the T5 fluorescent lamps in the building)?
A) 5 months
B) 85.7 months
C) 60 months
D) 68 months
4. A 55-kW motor at full load is used to drive a pump that generates 50 meters of head while pumping water at a rate of 5,000 liters per minute. Calculate the pump efficiency.
A) 74%
B) 88%
C) 62%
D) 58%
5. A new energy-efficient boiler costs $60,890 to buy and install. The new energy-efficient boiler will save
$15,400 per year and last for 20 years. What is the internal rate of return (IRR) of the project?
A) 20%
B) 10%
C) 30%
D) 25%
E) 15%
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: A | Question # 3 Answer: B | Question # 4 Answer: A | Question # 5 Answer: A |
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