# CEM Exam Study Guide — Energy Manager Exam Prep

> Energy Manager Exam Prep (iPhone/iPad app by David Peterson.)

- Source: https://appshunter.io/ios/app/cem-exam-study-guide/id6791232401 (this page in markdown: same URL + `.md`)
- Developer: [David Peterson](https://appshunter.io/developer/1808322033)
- Category: Education, Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 2 MB
- Languages: American English
- Released: 2026-07-22
- Data updated: 2026-09-06
- User reviews in markdown: https://appshunter.io/ios/app/cem-exam-study-guide/id6791232401/reviews.md

## What is CEM Exam Study Guide?

Prepare for the AEE CEM (Certified Energy Manager) exam with a focused, comprehensive study companion aligned to the current Body of Knowledge 2.0.

CEM Study Guide organizes everything into the fourteen exam subject sections — Energy & Sustainability Policies, Codes & Standards; Energy Rates, Tariffs & Supply Options; Energy Audits & Instrumentation; Energy Accounting & Economics; Electrical Power Systems & Motors; Lighting Systems; HVAC Systems & Building Envelope; Building Automation, Controls & AI; Energy Storage Systems; Boiler & Steam Systems; Distributed Generation & Renewables; Industrial Systems; Operations, Maintenance & Commissioning; and Energy Savings Performance Contracting & M&V — so you study exactly what the exam tests.

WHAT'S INSIDE
• 160+ flashcards — tap to flip, tagged by subject section
• 125+ multiple-choice practice questions with instant feedback and fully worked solutions
• 110+ glossary terms and key acronyms, fully searchable
• 43 energy engineering formulas with variables and usage notes

TOPICS COVERED
• Policies & codes: decarbonization, GHG accounting, ASHRAE 90.1/62.1/211, IECC, ISO 50001, LEED, ENERGY STAR
• Rates & tariffs: rate structures, demand charges, ratchets, procurement, demand-side management
• Audits: ASHRAE Level 1/2/3 audits, instrumentation, EUI/ECI, load factor
• Economics: time value of money, NPV, IRR, SIR, life-cycle cost, simple payback, depreciation
• Electrical: power factor correction, three-phase power, motors, VFDs, affinity laws
• Lighting: efficacy, footcandles, zonal cavity method, LED retrofits, lighting controls
• HVAC & envelope: COP/EER/kW-per-ton, chillers, heat pumps, psychrometrics, R- and U-values, degree days
• Controls & BAS: PID control, DDC, BACnet, optimum start/stop, energy management systems
• Energy storage, boilers & steam, CHP & renewables, compressed air, commissioning, ESPC and IPMVP M&V

Start free with a preview of every section. Unlock Premium with a one-time lifetime purchase or a low monthly subscription — both include the entire question bank, glossary, and formula library.

This app is an independent study aid and is not affiliated with, endorsed by, or sponsored by the Association of Energy Engineers (AEE). CEM® and Certified Energy Manager® are registered trademarks of the Association of Energy Engineers. Always verify current exam content at aeecenter.org.


## Version history (last 1 release)

### 1.0 — 2026-07-22

No release notes.

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