Certified Energy Manager (CEM) Practice Test

The Certified Energy Manager (CEM) Practice Test is a free intermediate-level, 20-minute skill test from Science of Apps. It tests readiness for the AEE Certified Energy Manager (CEM) exam — energy economics and rate structures, electrical systems, motors and lighting, HVAC, boilers and thermal systems, building envelope, controls and alternative energy, and energy audits, measurement and verification and energy management programmes — written to the AEE CEM body of knowledge, IPMVP, ISO 50001 and ASHRAE practice for 2026. Calculations use simple numbers; the real exam allows a calculator and reference book. Score 70% or more on its 20 questions to earn a verifiable Certified Energy Manager Proficiency certificate (SOA-CEM). Every question is based on published standards and research — including Certified Energy Manager (CEM) body of knowledge (Association of Energy Engineers), International Performance Measurement and Verification Protocol (IPMVP) (Efficiency Valuation Organization), ASHRAE standards and guidelines (ASHRAE) — and each answer is explained with its source.

Yes. Science of Apps has a free Certified Energy Manager (CEM) Practice Test built on the current Association of Energy Engineers exam outline for 2026 and 2027. It covers energy economics and rates, electrical systems, motors and lighting, HVAC, boilers and thermal systems and envelope, controls, audits and m&v, scores you instantly and issues a verifiable certificate.

Read the four skill areas on this page, then take the 20-minute test online — no fee, course or sign-up. You see every answer explained when you finish. Score 70% or more and you get a Certified Energy Manager Proficiency certificate straight away, on screen, as a PDF and by email, with a credential ID anyone can verify.

Yes. The questions are original scenarios written by Science of Apps, and each one is based on a public source you can read: Certified Energy Manager (CEM) body of knowledge (Association of Energy Engineers); International Performance Measurement and Verification Protocol (IPMVP) (Efficiency Valuation Organization); ASHRAE standards and guidelines (ASHRAE); Energy efficiency and renewable energy (US Department of Energy); ISO 50001: Energy management (ISO). The source is shown under each question and linked in the answer review. Science of Apps doesn't copy questions from other tests.

Four skill areas with five questions each, drawn from a bank of 10 per area so a retake brings new questions: Energy Economics and Rates (Payback and life cycle cost, Time value of money and Utility rate structures); Electrical Systems, Motors and Lighting (Power factor, Motors and drives and Lighting); HVAC, Boilers and Thermal Systems (HVAC, Combustion and steam and Unit conversions); Envelope, Controls, Audits and M&V (Envelope and controls, Audits and programmes and Measurement and verification). Every question is an original scenario written to the 2026–2027 standard, with the published source named under it.

Energy manager, Energy engineer or auditor, Facilities or plant engineer, Sustainability manager and ESCO project developer. It suits anyone who wants a quick, verifiable way to show Certified Energy Manager knowledge in 2026 and 2027, from students and career switchers to experienced professionals.

The CEM from the Association of Energy Engineers (AEE) recognises professionals who can optimise energy use in buildings and industry. Candidates usually take an AEE training seminar, meet education and experience rules and pass an open-book exam covering economics, electrical and mechanical systems, audits and M&V.

ISO 50001 sets out a management system for continual improvement in energy performance. The CEM tests the engineering and financial skills needed to find, size and verify savings — such as motor, boiler and HVAC calculations, rate analysis and life cycle costing — that sit inside such a system.

No. It is an independent practice test written to the publicly available Certified Energy Manager content outline for 2026 and 2027, for checking your readiness before you book the real exam. Passing earns a Science of Apps certificate rather than the official credential.

Yes. The test is online, in English and free everywhere — people take it from India, the US, the UK, Europe, Africa, Latin America and Asia-Pacific. Your certificate is dated with your own local date and can be verified from anywhere at scienceofapps.com/certification/verify/.

20 questions — 5 from each of 4 skill areas — with a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

We rate it Intermediate: assumes hands-on experience in the role. It has 20 scenario questions — 5 from each of 4 skill areas — and a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

Nothing. There is no fee to take a test, to receive the certificate, to have it emailed or to verify it, and no sign-up.

On our server, not in your browser. The answers never reach the page until you submit, so a certificate can only be earned by passing. Each certificate gets a unique credential ID stored by Science of Apps.

You see your score for each area and every question with the correct answer and why, with the published source behind it. You can retake after 30 minutes, and the retake draws questions you haven't seen yet.

No. Every certificate is dated, so it always shows when you passed. Retake a test any time for a newer date or a higher score.

Yes. After you pass, Add to LinkedIn opens the Licenses & certifications form with the certificate name, Science of Apps as the issuer, the issue date, your credential ID and the verification link filled in. You can also download it as a PDF or PNG, and it's emailed to you as a PDF.

Every certificate has a credential ID and a QR code. Scanning it, or entering the ID at scienceofapps.com/certification/verify/, shows the holder's name, the certification, the score and the issue date from our records.

No. They are Science of Apps' own assessments of applied skill. They aren't issued by a university or standards body, and they work best alongside a portfolio that shows the skills in real work.