- How the BEP Blueprint Is Built
- Reading the Weight Ranges Correctly
- Domains 1-4: Codes, Fundamentals, Rates, and Procurement
- Domains 5-8: Accounting, Assessment, Economics, and M&V
- Domains 9-11: Building Systems, Industrial Equipment, and CHP
- How the Domains Show Up on Exam Day
- Sequencing the Domains Across Your Prep
- Version Notes: What 2026 Does and Does Not Change
- Frequently Asked Questions
- The Certified Business Energy Professional exam from AEE covers eleven official sections with published weight ranges, not fixed percentages.
- Energy Accounting, Carbon Auditing, Metering and EIS has the highest upper bound at 10-16%, followed by Building Systems at 10-14%.
- The exam is 130 graded multiple-choice questions in 4 hours, open book with printed or bound references only.
- Utility Rate Structures and Electric and Gas Procurement are each 7-11%, and together they form the commercial core of the credential.
How the BEP Blueprint Is Built
The Certified Business Energy Professional credential, issued by the Association of Energy Engineers (AEE), targets people who sell, market, finance, procure, or manage energy solutions for commercial and industrial customers. That orientation explains why the blueprint looks different from a pure engineering exam. Roughly a third of the content is commercial in character (rate structures, procurement, accounting, economics), while the rest covers the technical systems you need to talk about credibly with facility owners and engineers.
AEE publishes the blueprint as a Body of Knowledge with eleven sections, each carrying a weight range. If you are new to the credential, start with What Is BEP Certification? for the big picture, then return here for the domain-by-domain detail. The complete exam format is 130 graded multiple-choice questions over 4 hours, and the questions include applied technical and numerical items, as AEE's public sample questions show.
| # | Official Domain | Weight Range |
|---|---|---|
| 1 | Codes and Standards and Green Buildings | 3-5% |
| 2 | Energy Fundamentals | 5-7% |
| 3 | Utility Rate Structures | 7-11% |
| 4 | Electric and Gas Procurement | 7-11% |
| 5 | Energy Accounting, Carbon Auditing, Metering and Energy Information Services (EIS) | 10-16% |
| 6 | Energy Assessment and Instrumentation | 7-11% |
| 7 | Energy Economics and Alternative Financing | 9-13% |
| 8 | Commissioning and Measurement & Verification (M&V) | 6-10% |
| 9 | Building Systems | 10-14% |
| 10 | Industrial Process and Utility Equipment | 7-11% |
| 11 | Combined Heat and Power and On-site Generation | 7-11% |
Reading the Weight Ranges Correctly
The most common mistake candidates make is treating the ranges as if they were exact percentages that sum to 100. They are not. AEE publishes a minimum and maximum for each section, and the ranges overlap, so no single question count per domain can be derived from the table. What the ranges do tell you is relative emphasis.
Because the exam is open book, depth of recall matters less than speed of navigation. A domain that carries a wide range and involves calculations deserves tabbed, annotated printed references. We cover how difficulty plays out across these topics in How Hard Is the BEP Exam?
Domains 1-4: Codes, Fundamentals, Rates, and Procurement
Domain 1: Codes and Standards and Green Buildings (3-5%)
The smallest section, but it frames how buildings are regulated and rated. Expect to recognize the role of energy codes and standards, and the purpose of green building programs, rather than recite clause numbers.
- Know what energy codes and standards govern and who typically enforces them
- Understand how green building rating systems influence owner decisions and project scope
- Be able to connect code requirements to the efficiency measures you would propose
Domain 2: Energy Fundamentals (5-7%)
The vocabulary and physics underneath every later section. Units, energy forms, and basic relationships between power, energy, and demand appear again and again inside other domains.
- Distinguish power from energy and be fluent with common commercial energy units
- Handle unit conversions quickly, since they recur inside rate and economics problems
- Understand basic thermodynamic and electrical concepts at a working level
Domain 3: Utility Rate Structures (7-11%)
This is where the credential's commercial identity shows. Candidates must read a tariff and understand what drives a customer's bill.
- Differentiate energy charges, demand charges, and fixed or customer charges
- Recognize time-of-use and other structures that reward load shifting
- Estimate how a measure changes the bill, not just the consumption
- Understand why identical kWh savings can produce very different dollar savings under different tariffs
Domain 4: Electric and Gas Procurement (7-11%)
Procurement covers how commercial customers buy energy where choice exists, and how contract structure shifts risk.
- Compare fixed, indexed, and other pricing approaches and the risk each places on the buyer
- Understand how load shape and load factor influence supplier pricing
- Know the role of aggregation, brokers, and suppliers in deregulated markets
Domains 3 and 4 reward the same mental habit: always trace the dollar. If you plan to work in sales or account management, this pairing is likely your highest-leverage study area. For a sense of the roles that use these skills, see BEP Jobs.
Domains 5-8: Accounting, Assessment, Economics, and M&V
Domain 5: Energy Accounting, Carbon Auditing, Metering and Energy Information Services (EIS) (10-16%)
The heaviest section by upper bound. It combines tracking energy use, quantifying carbon, and the metering and data infrastructure that supports both. Note that AEE's scheme document uses the phrase Carbon Accounting where the Body of Knowledge uses Carbon Auditing; they refer to the same area, and this guide keeps the Body of Knowledge wording.
- Normalize and benchmark consumption so facilities can be compared fairly
- Understand how emissions are calculated from energy use
- Know what metering and EIS platforms measure and how the data is used for decisions
- Be comfortable interpreting trends, baselines, and anomalies in consumption data
Domain 6: Energy Assessment and Instrumentation (7-11%)
How an energy assessment is scoped and performed, and which instruments are used to gather evidence on site.
- Match instruments to measurements (electrical, thermal, airflow, lighting)
- Understand the sequence from preliminary review to detailed assessment
- Recognize the limits and typical uncertainty of field measurements
Domain 7: Energy Economics and Alternative Financing (9-13%)
Expect numerical questions here. Economic evaluation is the language owners use to approve or reject projects, and financing structures determine whether a good project ever gets built.
- Apply simple payback, life-cycle cost, net present value, and return-on-investment logic
- Understand how discount rates and project life change a decision
- Compare alternative financing approaches, including performance-based and third-party structures, by who carries risk and who captures savings
Domain 8: Commissioning and Measurement & Verification (M&V) (6-10%)
Commissioning confirms systems perform as designed, while M&V proves that savings are real. Both matter to anyone whose revenue depends on guaranteed or reported savings.
- Distinguish commissioning phases and their purpose
- Understand baselines, adjustments, and the general logic of M&V options
- Recognize why credible verification protects both seller and customer
Domains 9-11: Building Systems, Industrial Equipment, and CHP
Domain 9: Building Systems (10-14%)
The broadest technical section and the second highest by upper bound. It spans the major energy-using systems in commercial buildings, and it is where non-engineers often need the most reinforcement.
- Understand how HVAC, lighting, controls, and the building envelope interact
- Know the common efficiency measures for each system and the conditions that make them attractive
- Recognize interactive effects, such as how a lighting upgrade changes cooling load
Domain 10: Industrial Process and Utility Equipment (7-11%)
Moves beyond the office-building model into plant-floor equipment and utility systems that support manufacturing and process loads.
- Know the major industrial utility systems, such as compressed air, steam, and motor-driven systems
- Identify the typical sources of waste and the measures that address them
- Understand how process requirements constrain what can be changed
Domain 11: Combined Heat and Power and On-site Generation (7-11%)
Covers generating power and useful heat on site. It ties together fundamentals, rates, and economics, because a CHP project only works when the technical fit, tariff, and financing all line up.
- Understand the basic CHP concept and what makes a site a good candidate
- Recognize how thermal and electrical load profiles determine feasibility
- Connect on-site generation to standby, interconnection, and rate considerations
How the Domains Show Up on Exam Day
Knowing the content is only half the job; the delivery conditions shape how you should prepare each domain. The exam is open book and open notes, but AEE requires printed or bound references rather than electronic books or searchable computer files. For remote delivery, AEE uses ProctorU with the Guardian Browser, and the exam computer may not be used to open outside reference files or spreadsheets. A suitable private room and webcam monitoring are required.
- Calculation-heavy domains (fundamentals, rates, economics, M&V) benefit from worked-example tabs in your printed binder.
- Concept-heavy domains (codes, building systems, industrial equipment) benefit from indexed summaries so you can locate a definition in seconds.
- With 130 questions in 4 hours, you have a little under two minutes per question on average, so a reference you cannot find quickly is not really a reference.
For passing-standard details, see BEP Passing Score, and for scheduling logistics see BEP Exam Dates. Candidates who want a fast refresher of key facts can use the BEP Cheat Sheet.
Key Takeaway
Because the exam is open book, build your reference binder by domain, with the highest-range sections (Energy Accounting, Building Systems, Energy Economics) getting the most tabs and the most pre-worked examples. Test the binder against practice questions at our BEP practice test site to see which tabs you actually reach for.
Sequencing the Domains Across Your Prep
Training is mandatory for this credential, so your course materials already follow an instructional order. Use the time around the course to reinforce the domains in an order that builds dependencies. This is the one place we will talk about scheduling, and it is tied directly to the blueprint rather than generic advice. For a broader plan, see the BEP Study Guide.
Foundations first
- Energy Fundamentals, since units and relationships recur everywhere
- Codes and Standards and Green Buildings, a short domain that sets context
The commercial core
- Utility Rate Structures, then Electric and Gas Procurement
- Work bill-impact problems until tracing the dollar is automatic
Data and decisions
- Energy Accounting, Carbon Auditing, Metering and EIS (the heaviest range)
- Energy Economics and Alternative Financing, with calculator drills
Systems and verification
- Building Systems, Industrial Process and Utility Equipment, and CHP
- Energy Assessment and Instrumentation, then Commissioning and M&V
Fundamentals and rates come before economics and CHP because the later domains reuse their math. If you are time-constrained, protect the three highest-range sections first.
Version Notes: What 2026 Does and Does Not Change
Candidates often ask whether a 2026 blueprint exists. Based on the current AEE resource library, the active documents are the BEP Scheme version 1.2 (effective July 8, 2025) and a combined Body of Knowledge and Study Guide effective June 19, 2025. A separate one-page Body of Knowledge from October 2023 remains linked and shows the same eleven weight ranges. The heading “Body of Knowledge 2.0” that appears inside the tables is a label, not evidence of a 2026 revision, and one file carries a mismatched “Vers1.1” in its filename despite its internal version header.
Eligibility, the training requirement, and costs are covered separately: see BEP Requirements and BEP Certification Cost. If you are weighing the investment, Is the BEP Certification Worth It? and the BEP Salary Guide provide the context.
Frequently Asked Questions
There are eleven official sections in the AEE blueprint, each with a published weight range. The 2026 course agenda includes an additional transport section, but it does not change the eleven-section exam blueprint.
Energy Accounting, Carbon Auditing, Metering and Energy Information Services (EIS) has the highest upper bound at 10-16%. Building Systems (10-14%) and Energy Economics and Alternative Financing (9-13%) follow. Because the ranges overlap, treat them as relative emphasis rather than exact question counts.
No. AEE publishes ranges, not fixed percentages, and the ranges overlap. You cannot calculate an exact number of questions per domain from the published table.
Yes, the exam is open book and open notes, but AEE requires printed or bound references rather than electronic books or searchable computer files. A permitted hand calculator without internet or Bluetooth capability is also allowed. For more on preparation difficulty, read How Hard Is the BEP Exam?
We do not publish a pass rate here because no verified figure is available for this exam. Our BEP Pass Rate article explains what the available data does and does not show.
The domain list is the most reliable map of what the Certified Business Energy Professional exam rewards: commercial fluency in rates, procurement, and economics, backed by enough technical grounding in buildings, industrial systems, and on-site generation to speak with credibility. Build your binder around the heaviest ranges, drill the calculation domains, and check your readiness with timed questions on our BEP practice exams.