100+ Free Bulgarian Energy Efficiency Consultant Exam Practice Questions

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2026 Statistics

Key Facts: Bulgarian Energy Efficiency Consultant Exam Exam

115 Hours

Level 1 Course Curriculum

Ordinance E-RD-04-1 Annex 10

2 Stages

Written Test & Project Defense

Art. 31 Ordinance E-RD-04-1

EUR 1,985

TU-Sofia Level 1 Course Fee, Exam Included

eec.tu-sofia.bg, 2026

The Bulgarian Energy Efficiency Consultant qualification requires passing a single national written test, prepared in variants by the Methodological Council and identical across the country, and then defending a practical building energy audit project before a cross-institutional board. Neither the item count, the duration nor the pass mark is published. This 100-question English MCQ bank is a study aid on Bulgarian and EU energy efficiency law, thermal physics calculations and statutory audit procedure — not a replica of the official Bulgarian-language test.

Sample Bulgarian Energy Efficiency Consultant Exam Practice Questions

Try these sample questions to test your Bulgarian Energy Efficiency Consultant Exam exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under Ordinance No. Е-РД-04-1 of 3 January 2018, which qualification track authorizes an Energy Efficiency Consultant to perform energy audits on all categories of buildings under Article 137, Paragraph 1 of the Spatial Development Act (ZUT)?

A.Level 1 (Ниво 1) qualification per Annex No. 10 (Приложение № 10)

B.Level 2 (Ниво 2) qualification per Annex No. 11 (Приложение № 11)

C.Industrial Systems qualification per Annex No. 12 (Приложение № 12)

D.Basic Energy Auditor Certificate issued by municipal administration

Explanation: Under Article 43, Paragraph 3, Item 1 of the Energy Efficiency Act (ZEE) and Annex No. 10 of Ordinance No. Е-РД-04-1, Level 1 (Ниво 1) consultants are statutory qualified to perform energy efficiency audits and certification on all categories of buildings pursuant to Article 137, Paragraph 1 of ZUT.

2Which executive state agency is legally mandated under the Bulgarian Energy Efficiency Act (ZEE) to maintain the official public registers of certified energy efficiency consulting companies?

A.Energy and Water Regulatory Commission (EWRC / КЕВР)

B.Sustainable Energy Development Agency (SEDA / АУЕР)

C.Directorate for National Construction Supervision (DNSK / ДНСК)

D.Bulgarian Institute for Standardization (BDS / БИС)

Explanation: The Sustainable Energy Development Agency (Агенция за устойчиво енергийно развитие — АУЕР / SEDA), an executive agency under the Minister of Energy, is legally charged under Articles 44 and 59 of ZEE with maintaining the central public registers of qualified energy auditing legal entities and inspecting audit reports.

3According to Article 31 of Ordinance No. Е-РД-04-1, how is the written examination for acquiring the qualification of Energy Efficiency Consultant organized and unified across Bulgaria?

A.Each accredited technical university independently writes and grades its own proprietary written test

B.The test consists of an unstandardized oral interview conducted solely by the Ministry of Energy

C.The examination test is nationally unified and prepared in variants by a National Methodological Council comprising habilitated professors from authorized technical universities

D.Candidates complete an open-book online quiz managed by private vocational training centers

Explanation: Article 31, Paragraph 7 provides that the examination test is single for the whole country (изпитният тест е единен за страната) and is prepared in variants by a Methodological Council of habilitated lecturers authorised by the rectors of every higher school that holds these exams. Paragraph 5 separately provides that the scope of the examinable material and the method of assessment are unified nationally and are determined by the accredited higher schools authorised to hold the exams, while Paragraph 8 allows changes to the test questions and answers only by decision of the Council.

4Under Article 47, Paragraph 1 of the Energy Efficiency Act (ZEE) and Article 17 of Ordinance No. Е-РД-04-2 of 16 December 2022, how long is an Energy Performance Certificate (Сертификат за енергийни характеристики) for a building in operation valid?

A.Exactly 3 years for every building, regardless of its energy class

B.Indefinitely, as long as the building owner does not change

C.20 years for residential buildings and 15 years for public-service buildings

D.Up to 10 years, with the actual term set by energy class: 10 years for Class A and nZEB, 8 for Class B, 6 for Class C, 4 for Classes D to G

Explanation: Article 47, Paragraph 1 of ZEE sets the ceiling — 'сертификатът за енергийни характеристики на сграда в експлоатация е със срок на валидност до 10 години'. Article 17 of Ordinance No. Е-РД-04-2/2022 then grades the actual term by the certified energy class: 10 years for Class A and buildings meeting the national nearly-zero-energy definition, 8 years for Class B, 6 years for Class C and 4 years for Classes D, E, F and G.

5Under Bulgarian legislation (ZEE), which of the following public-service buildings in operation is subject to MANDATORY energy auditing and certification?

A.All public-service buildings with a total built-up area (разгъната застроена площ) exceeding 250 m²

B.Only state administrative buildings with an area exceeding 2,500 m²

C.Only municipal healthcare facilities with year-round 24-hour continuous heating

D.Any building constructed before 1960 regardless of floor area or functional purpose

Explanation: Article 38, Paragraph 1 of ZEE subjects public-service buildings in operation with a total built-up area (разгъната застроена площ) above 250 m² to compulsory auditing and certification. The measure of area is РЗП — the gross built-up area — not the heated or useful floor area. The same paragraph lists the exemptions, including prayer houses of registered denominations, temporary buildings intended for use up to two years, production buildings, and separate buildings of up to 50 m² РЗП.

6What is the legal composition of the State Examination Board (Изпитна комисия) convened for the consultant qualification exam under Article 31, Paragraph 2 of Ordinance No. Е-РД-04-1?

A.Exclusively faculty members employed within the single host university conducting the course

B.At least two habilitated lecturers from other authorized higher technical schools, the Methodological Council Chair, and designated experts from the Ministry of Energy, MRRB, and SEDA (АУЕР)

C.Three municipal chief architects and two representatives from regional construction chambers

D.Independent private engineering consultants selected through an open public procurement tender

Explanation: Article 31, Paragraph 2 of Ordinance No. Е-РД-04-1 deliberately requires a cross-institutional board: at least two external habilitated professors from other higher schools, the Chair of the Methodological Council, and official expert delegates from the Ministry of Energy, MRRB (Министерство на регионалното развитие и благоустройството), and SEDA.

7Under § 1, Item 2 of the Supplementary Provisions of Ordinance No. Е-РД-04-1, how is an engineering speciality defined as 'equated' (приравнена специалност) to those listed in Articles 16 and 17 for admission to consultant training?

A.The candidate possesses at least 15 years of general construction site supervisor experience

B.The diploma is endorsed with a post-graduate certificate in environmental management

C.Its higher education curriculum covers at least 80% of the core specializing disciplines of the statutory speciality

D.The candidate passes an introductory English language proficiency test at CEFR B2 level

Explanation: Under § 1, Item 2 of the Ordinance, an equated speciality is legally defined as one whose academic curriculum covers at least 80% of the core specializing disciplines required for the corresponding engineering specialities enumerated in Article 16 (for buildings) or Article 17 (for industrial systems).

8Which of the following describes the statutory minimum number of qualified energy efficiency consultants required for a legal entity to be entered into the SEDA public register for building energy audits under Article 44 of ZEE?

A.Only one certified consultant who acts as company manager and sole shareholder

B.A minimum of ten licensed engineers across all construction design specialties

C.No individual consultants are required if the corporate entity has ISO 50001 certification

D.At least three qualified consultants, covering thermal engineering, electrical power engineering, and architecture/building construction

Explanation: Article 16 of Ordinance No. Е-РД-04-1 requires a person under Article 43, Paragraph 1 of ZEE to employ at least three energy efficiency consultants: one in Топлотехника or Топлоенергетика, one in Електроенергетика и електрообзавеждане or Електроснабдяване и електрообзавеждане, and one in Архитектура, Промишлено и гражданско строителство or Строителство на сгради и съоръжения. Each place may alternatively be filled by a holder of secondary technical education with a third-degree vocational qualification listed in Annex No. 3, or by a holder of a scientific degree in the corresponding professional field.

9In building physics, what is the standard formula for calculating the thermal resistance R (m²·K/W) of a homogeneous material layer with thickness d (m) and design thermal conductivity λ (W/(m·K))?

A.R = d / λ

B.R = λ / d

C.R = d · λ

D.R = 1 / (d · λ)

Explanation: Thermal resistance R of a homogeneous layer is directly proportional to its thickness d and inversely proportional to thermal conductivity λ: R = d / λ (expressed in m²·K/W).

10According to BDS EN ISO 6946 and Bulgarian technical norms, what are the standard design internal (R_si) and external (R_se) surface thermal resistances for horizontal heat flow through an external vertical wall?

A.R_si = 0.10 m²·K/W and R_se = 0.10 m²·K/W

B.R_si = 0.13 m²·K/W and R_se = 0.04 m²·K/W

C.R_si = 0.17 m²·K/W and R_se = 0.00 m²·K/W

D.R_si = 0.04 m²·K/W and R_se = 0.13 m²·K/W

Explanation: Under BDS EN ISO 6946 and national design standards, for horizontal heat flow through external vertical walls, the internal surface resistance is R_si = 0.13 m²·K/W (due to natural convection and radiation) and external surface resistance is R_se = 0.04 m²·K/W (due to wind-driven forced convection).

About the Bulgarian Energy Efficiency Consultant Exam Exam

The Bulgarian Energy Efficiency Consultant Qualification Exam (Изпит за придобиване на квалификация „консултант по енергийна ефективност“) certifies qualified engineers to conduct statutory energy audits and energy performance certification of buildings under Articles 43 and 44 of the Energy Efficiency Act (Закон за енергийната ефективност — ЗЕЕ) and Ordinance No. Е-РД-04-1 of 3 January 2018. This 100-question English-language MCQ practice bank provides an educational study adaptation covering building envelope thermodynamics (U-values, thermal bridging), HVAC and heat pump seasonal efficiencies, lighting calculations (LENI), the energy consumption class scale and the nearly-zero-energy requirement that has applied to all new buildings since 1 January 2024, investment project energy-efficiency compliance assessments (част „Енергийна ефективност“), and statutory energy-savings calculations. The official exam is conducted in Bulgarian and has two stages — a single national written test, then an oral defence of a 40-hour course project. Note: this practice bank is an English-language MCQ study adaptation for knowledge reinforcement and revision; it is not an official translation, not a simulation of the official test format, and not a substitute for the mandatory course project or its defence.

Assessment

Two-stage statutory qualification assessment: unified national written test (изпитен тест) in drawn variants, followed by practical course project defense (защита на курсов проект) before an inter-institutional board.

Time Limit

not-published

Passing Score

not-published — Art. 31(5) unifies the examinable scope and the method of assessment nationally but publishes no pass mark

Exam Fee

No standalone exam fee; priced inside the course. TU-Sofia charges EUR 1,985 excl. VAT (3,882.32 BGN) for the Level 1 buildings course, covering tuition, materials, up to 2 exam attempts and the certificate. Set per university. (Authorised higher technical schools under Ordinance No. Е-РД-04-1 (issued by the Minister of Energy and the Minister of Regional Development and Public Works); SEDA (АУЕР) keeps the ZEE registers but does not run the exam)

Bulgarian Energy Efficiency Consultant Exam Exam Content Outline

62%

Module 1 — Energy efficiency auditing and certification of buildings (71 of 115 hours)

Bulgarian and EU EE legislation, envelope heat transfer and U-values, thermal bridges, measurement of thermal and electrical quantities, audit stages and instrumentation, the building energy balance, thermal zoning and modelling, evaluation of measure packages, the building subsystems from boilers and heat pumps to lighting, nZEB concepts, economic appraisal, and issuing energy performance certificates.

Module 2 — Conformity assessment of investment projects (2 of 115 hours)

The applicable regulatory order, rules and technical norms for assessing an investment project against the energy efficiency requirement — the design-stage gate under ZUT Art. 142 and Art. 169.

Module 3 — Preparation of energy savings assessments (2 of 115 hours)

The legally applicable methods, rules and order for assessing energy savings in buildings, and documenting and administering that process.

35%

Module 4 — Development of the course project (40 of 115 hours)

The practical module and second exam stage: a full energy efficiency audit of a public-service building with heating and cooling, documented through to the audit report, its summary and the issued building certificate, then defended orally before the examining board.

How to Pass the Bulgarian Energy Efficiency Consultant Exam Exam

What You Need to Know

Passing score: not-published — Art. 31(5) unifies the examinable scope and the method of assessment nationally but publishes no pass mark
Assessment: Two-stage statutory qualification assessment: unified national written test (изпитен тест) in drawn variants, followed by practical course project defense (защита на курсов проект) before an inter-institutional board.
Time limit: not-published
Exam fee: No standalone exam fee; priced inside the course. TU-Sofia charges EUR 1,985 excl. VAT (3,882.32 BGN) for the Level 1 buildings course, covering tuition, materials, up to 2 exam attempts and the certificate. Set per university.

Keys to Passing

Work through all 100 available questions
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Bulgarian Energy Efficiency Consultant Exam Study Tips from Top Performers

1Master thermal physics formulas: total thermal resistance R_tot = R_si + sum(d/lambda) + R_se, thermal transmittance U = 1/R_tot, and transmission heat losses Q_tr = sum(U*A + psi*l)*dT.

2Work from the instruments currently in force: the Energy Efficiency Act (ЗЕЕ), the Spatial Development Act (ЗУТ), Ordinance No. Е-РД-04-1 of 2018 (registers and qualification), Ordinance No. РД-02-20-3 of 9 November 2022 (technical requirements for energy performance) and Ordinance No. Е-РД-04-2 of 16 December 2022 (auditing, certification and savings assessment). Ordinance No. 7 of 2004 was repealed in ДВ issue 92 of 18 November 2022 — study material still quoting its U-value limits is out of date.

3Understand the statutory distinction between Level 1 (Приложение № 10, all building categories) and Level 2 (Приложение № 11, fifth-category buildings excluding public service).

4Practice quantitative economic and savings calculations, including degree-day weather normalization, primary energy conversion factors, Simple Payback Period, and Net Present Value (NPV).

Frequently Asked Questions

What is the official structure of the Bulgarian Energy Efficiency Consultant qualification exam?

Under Article 31 of Ordinance No. Е-РД-04-1 of 3 January 2018, the qualification exam consists of two mandatory stages: (1) a single national written test (изпитен тест) prepared in variants by the National Methodological Council, and (2) an oral defense of a comprehensive course project (защита на курсов проект) before a state examination board. Passing the written test is a statutory prerequisite for admission to the project defense.

Who administers the Bulgarian Energy Efficiency Consultant exam?

The examination test is prepared and unified nationally by the Methodological Council (Методически съвет) comprising habilitated professors from authorized technical universities (TU-Sofia, TU-Varna, TU-Gabrovo, University of Ruse, UFT-Plovdiv), with examination boards including delegates from the Ministry of Energy, the Ministry of Regional Development and Public Works (MRRB), and the Sustainable Energy Development Agency (SEDA / АУЕР).

Does this MCQ practice bank replace the official qualification process?

No. The official statutory qualification requires completing the 115-hour training course (Приложение № 10 for Level 1 buildings), passing the unified national written test, and defending a practical energy audit course project before the state examining board. This 100-question English MCQ bank is an educational study adaptation designed for technical knowledge revision and self-assessment.

What are the eligibility requirements to become a certified Energy Efficiency Consultant in Bulgaria?

Candidates must hold education in a field and speciality listed in Article 16 of Ordinance No. Е-РД-04-1 (for buildings) or Article 17 (for industrial systems), or a speciality equated to one of those — defined in § 1, item 2 as one whose curriculum covers at least 80% of the specialising disciplines. Article 16 admits higher education specialities such as Топлотехника, Топлоенергетика, Електроенергетика и електрообзавеждане, Архитектура and Промишлено и гражданско строителство, and also admits holders of secondary technical education with a third-degree vocational qualification listed in Annex No. 3, and holders of a scientific degree in the corresponding professional field.

What does the Energy Efficiency Consultant training and exam cost in 2026?

No standalone exam fee is published; the exam is priced inside the course and each university sets its own price. The Technical University of Sofia charges EUR 1,985 excluding VAT (3,882.32 BGN) for the Level 1 buildings course, or EUR 1,885 for candidates who already passed the industrial-systems course after the start of 2023. The price is VAT-exempt under Article 41 of the VAT Act (ЗДДС) and covers tuition, materials, up to two examination attempts and issuance of the qualification certificate. The University of Ruse page still lists the pre-euro price of 3,500 BGN. Bulgaria adopted the euro on 1 January 2026 at the fixed rate of 1.95583 BGN per euro.