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.

FOUR WAYS TO STUDY
• 166 flashcards — tap to flip, tagged by exam domain
• 126 multiple-choice questions with worked explanations
• Term-matching game — pair all 112 key terms, in rounds of five
• Searchable 112-term glossary and 43 formulas

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). All trademarks are the property of their respective owners. Exam content and policies change over time — always verify current requirements with the certifying body.

Recent changes:
First Android release. Everything from the iOS edition: 166 flashcards,
126 practice questions, a term-matching game, and a
searchable 112-term reference library across 14 exam domains.