AEE Certified Energy Manager (CEM) Vocabulary Game
Exam terms with clues and explanations by OpenExamPrep.
About the AEE Certified Energy Manager (CEM) Vocabulary Game
A free word game for the AEE Certified Energy Manager (CEM) exam. Each round shows a clue for one of 41 exam terms across 14 topics. Recall the term, spell it out, then read a short explanation. Rounds pick a random term, so you can keep playing as long as you like.
How to Play
- 1Read the clue and type a term with the right number of letters (3 to 6). Abbreviations count: type the letters only.
- 2Press Check Answer or Enter. Each letter changes color to show how close you are.
- 3You have 6 tries. Stuck? Need a hint? asks the AI tutor for a nudge without giving the term away, and Skip moves to a new term.
- 4After the round, read the explanation, ask the AI to explain it, share your result, or press Next.
- ARight letter, right spot
- AIn the term, wrong spot
- ANot in the term
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Topics in the AEE Certified Energy Manager (CEM) Vocabulary Game
Policy and regulation
Utility billing
Energy assessment
Energy Economics
Electrical power
Lighting Systems
Heating and cooling
Controls and Automation
Energy Storage
Boiler plant
Renewables
Industrial Systems
Operations and Maintenance
Contracting and M&V
Sources for these terms (13)
- CEM Body of Knowledge & Study Guide, Version 1.8 (Association of Energy Engineers, effective 2026-06-19) · Source checked 2026-11-02
- CEM Candidate Handbook, Version 2.15 (Association of Energy Engineers, effective 2026-07-20) · Source checked 2026-11-02
- Energy and Environment Guide to Action, Chapter 4.3: Building Codes for Energy Efficiency (U.S. EPA) · Source checked 2026-11-02
- About ENERGY STAR (U.S. EPA) · Source checked 2026-11-02
- Glossary (U.S. Energy Information Administration) · Source checked 2026-11-02
- Units and calculators explained: British thermal units (U.S. Energy Information Administration) · Source checked 2026-11-02
- Use of energy explained: Energy use in commercial buildings (U.S. Energy Information Administration) · Source checked 2026-11-02
- OMB Circular A-94, Guidelines and Discount Rates for Benefit-Cost Analysis of Federal Programs (Office of Management and Budget) · Source checked 2026-11-02
- 10 CFR 431.92, Definitions concerning commercial air conditioners and heat pumps (2025 annual edition, GovInfo) · Source checked 2026-11-02
- About Federal Energy Savings Performance Contracts (U.S. DOE Federal Energy Management Program) · Source checked 2026-11-02
- Reducing Power Factor Cost (U.S. DOE Motor Challenge fact sheet) · Source checked 2026-11-02
- Improving Motor and Drive System Performance: A Sourcebook for Industry (U.S. DOE Advanced Manufacturing Office, 2014) · Source checked 2026-11-02
- LED Basics (U.S. DOE Solid-State Lighting Program) · Source checked 2026-11-02
About the AEE Certified Energy Manager (CEM) Exam
The AEE Certified Energy Manager (CEM) certification is a professional credential for energy managers who evaluate energy use, identify conservation measures, manage energy projects, understand energy economics, and integrate policy, building systems, industrial systems, controls, commissioning, distributed generation, storage, performance contracting, and measurement and verification. The current CEM Body of Knowledge and Study Guide lists a four-hour open-book exam with 130 questions, including 120 scored questions and 10 unscored trial questions.
Exam sponsor: Association of Energy Engineers (AEE). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Assessment
Open-book multiple-choice exam with 130 questions total: 120 scored questions and 10 unscored trial questions distributed across 14 mandatory Body of Knowledge subject areas.
Time Limit
4 hours
Passing Score
Minimum score of 700 points (AEE does not publish the scale or a percent equivalent)
Exam / Certification Fees
Varies by route, membership, training provider, location, and current AEE fee schedule.
Exam sponsor websiteReported exam pass rate: Not publicly reported by AEE. AEE does not publish CEM first-time pass rates in the opened official sources. Exam sponsor website
Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Frequently Asked Questions
Is the AEE CEM vocabulary game free?
Yes. The game is free to play with no sign-up. Signing in adds AI explanations for any term.
How does the AEE CEM vocabulary game work?
Each round shows a clue for one of 41 AEE CEM terms. Guess the term in six tries: green means the right letter in the right spot, yellow means the letter is in the term but in another spot, and gray means it is not in the term. After the round, read the explanation and play the next term.
Where do the AEE CEM terms come from?
OpenExamPrep researched each term from the Association of Energy Engineers (AEE) content outline and primary sources, listed under Sources on this page. The game is independent study material, not an official exam resource.
Is the AEE CEM exam open book?
Yes. The official CEM Body of Knowledge and Study Guide describes the exam as a four-hour open-book exam.
How many questions are on the AEE CEM exam?
The official CEM Body of Knowledge and Study Guide lists 130 total questions: 120 scored questions and 10 unscored trial questions.