200+ Free CEM Practice Questions
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Key Facts: CEM Exam
130
Exam Questions
AEE
~70%
Passing Score
AEE
4 hrs
Exam Duration
Open book
$500-625
Exam Fee
AEE (member/non-member)
65-75%
Pass Rate
Industry estimate
3 yrs
Certification Term
Recertification required
The CEM exam has 130 questions in 4 hours (open book) with approximately 70% passing score. Major domains: Energy Accounting & Economics (15%), Electrical Systems (15%), HVAC Systems (15%), Building Envelope (10%), Energy Audits (10%), Lighting (10%), Motors & Drives (10%), Codes & Standards (5%), Renewable/CHP (5%), and Controls (5%). Based on ASHRAE, IEEE, and AEE standards.
About the CEM Exam
The Certified Energy Manager (CEM) is the premier certification for energy management professionals. The exam covers energy accounting and economics, electrical systems, HVAC systems, building envelope, lighting, motors and drives, energy audits, codes and standards, renewable energy, and combined heat and power systems.
Questions
130 scored questions
Time Limit
4 hours (open book)
Passing Score
~70%
Exam Fee
$500-625 (AEE (Association of Energy Engineers))
CEM Exam Content Outline
Energy Accounting & Economics
Energy units, utility rate structures, time value of money, NPV, IRR, simple payback, life cycle cost analysis
Electrical Systems
Power factor, demand, three-phase power, transformers, motors, electrical distribution, power quality
HVAC Systems
Heating, cooling, chillers, cooling towers, air distribution, economizers, heat pumps, HVAC controls
Building Envelope
Insulation, windows, air infiltration, thermal bridging, moisture control, daylighting
Energy Audits
ASHRAE audit levels, benchmarking, instrumentation, data collection, energy conservation measures
Lighting Systems
Lamp technologies, ballasts, fixtures, controls, LED retrofits, illuminance, color rendering
Motors & Drives
Motor efficiency, NEMA Premium, VFDs, motor management, load matching, high-efficiency motors
Codes & Standards
ASHRAE 90.1, ASHRAE 62.1, LEED, Energy Star, IECC, local energy codes
Renewable Energy & CHP
Solar PV, wind, cogeneration, thermal storage, fuel cells, renewable energy economics
Controls & Automation
Building automation systems, EMS, DDC, setpoint optimization, scheduling, temperature reset
How to Pass the CEM Exam
What You Need to Know
- Passing score: ~70%
- Exam length: 130 questions
- Time limit: 4 hours (open book)
- Exam fee: $500-625
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
CEM Study Tips from Top Performers
Frequently Asked Questions
What is the CEM certification?
The Certified Energy Manager (CEM) is the premier professional certification for energy management professionals, offered by the Association of Energy Engineers (AEE). It demonstrates expertise in energy accounting, building systems, economic analysis, and energy conservation across commercial, industrial, and institutional facilities.
What are the prerequisites for the CEM exam?
Candidates need a 4-year engineering degree plus 3 years of energy management experience, OR a 4-year non-engineering degree plus 4 years of experience, OR a 2-year technical degree plus 5 years of experience, OR 10+ years of verified energy management experience. AEE membership provides exam fee discounts.
How hard is the CEM exam?
The CEM exam is considered moderately difficult with a 65-75% first-time pass rate. It is an open-book exam covering 10 major domains. Most candidates who complete a prep course and study 80-100 hours pass on their first attempt. The open-book format allows reference materials but time management is critical.
What is the format of the CEM exam?
The CEM exam is an open-book, multiple-choice exam with 130 questions administered over 4 hours. The passing score is approximately 70%. Exams are administered via computer-based testing at PSI centers. Candidates can bring reference materials including handbooks, standards, and calculators.
How do I maintain my CEM certification?
CEM certification requires recertification every 3 years. You must earn 30 Professional Development Hours (PDHs) over the 3-year period and submit a recertification application with a $125 fee. PDHs can be earned through continuing education, conference attendance, publishing articles, teaching, or professional activities.