ENERGY
AUDITS
Comprehensive analysis of energy performance of facilities and systems in accordance with ISO 50002 and EN 16247 standards. Reduce costs, optimize consumption, and comply with regulations.
What is an energy audit and why is it crucial?
An energy audit (also known as an energy review) represents a systematic and detailed inspection of energy-consuming installations, equipment, and building envelope characteristics, with the primary objective to identify spots of irrational energy use and define concrete, financially viable measures for improving energy efficiency.
Unlike an energy passport, which is a regulatory certificate classifying the building's energy rating (from A+ to G) required for construction and occupancy permits, an energy audit is a deep technical and economic analysis. It evaluates the real-world operational behavior of active systems (heating, cooling, ventilation, lighting, and industrial processes) and outlines a clear action plan to cut bills and optimize operations.
By conducting an energy audit, you obtain a precise breakdown of where energy and money are being lost, along with recommendations for energy efficiency investments with a calculated return on investment (ROI). It is the critical first step for any successful building energy retrofit or for implementing an energy management system.
Our licensed engineers have years of experience conducting energy audits for a wide range of facilities – from large industrial plants to commercial buildings, public institutions, and residential complexes across Serbia.
Who needs an energy audit?
Large Enterprises & Industry
Under the Law on Efficient Use of Energy in Serbia, large companies and high-energy industrial consumers are legally mandated to conduct periodic energy audits to identify energy-saving potentials and establish systematic energy management (ISO 50001).
Public Sector & Municipalities
Municipalities, public utility companies, and government institutions are obligors of the energy management system. Energy audits of public buildings and utility networks (e.g., street lighting, water supply) lead to substantial budget savings.
Commercial Buildings & Hotels
Office towers, hotels, retail centers, and other commercial properties consume massive amounts of energy on HVAC and lighting. A detailed audit uncovers hidden energy waste, directly boosting operational profitability.
How does the process work?
Initial Meeting & Goal Definition
We define the boundaries of the audit (entire facility or specific sub-systems), collect historical energy data (utility bills, load profiles), and coordinate the schedule for the on-site inspection.
On-Site Inspection & Measurements
Our engineers perform a detailed walk-through of the facility and technical systems. We use advanced diagnostic equipment, including infrared thermography to detect heat losses, and specialized tools to measure electrical and thermal parameters.
Energy Flow Analysis
We perform calculations to establish the facility's energy balance, model energy consumption, and identify exact areas of energy waste and losses in heating, ventilation, cooling, and lighting systems.
Measure Definition & Financial Analysis
We propose concrete measures to improve energy efficiency (operational adjustments, system retrofits, or renewable energy integration) along with estimates of required investment, annual savings, and payback period.
Reporting & Presentation
We prepare a final energy audit report in full compliance with ISO 50002 / EN 16247 standards and present it to your management, providing a clear roadmap of prioritized investment measures.
What does our energy audit cover?
We offer full-service energy audits under ISO 50002 and EN 16247 standards, including:
- Comprehensive utility bill and energy consumption analysis
- Infrared thermographic scans of the building envelope and electrical cabinets
- Efficiency testing of boilers, HVAC, and industrial cooling systems
- Electrical system audits and reactive power compensation analysis
- Identification and calculation of water and energy saving opportunities
- Energy balance modeling and profit-boosting efficiency proposals
- Consulting and assistance in implementing ISO 50001 systems
Legal Framework & Standards
Energy audits in Serbia are regulated by the Law on Efficient Use of Energy and corresponding rulebooks, defining the obligors of the energy management system and mandatory audits for large consumers.
Our firm conducts energy audits in complete accordance with the international ISO 50002 standard (Energy audits - Requirements with guidance for use) and the European EN 16247 series, ensuring the highest analytical quality.
The law mandates the following obligations regarding energy audits:
- ✓Large energy consumers in industrial and commercial sectors must perform energy audits every 4 years.
- ✓State administration organs, autonomous provinces, and local governments must organize energy audits of their facilities.
- ✓Final energy audit reports must be submitted to the Ministry of Mining and Energy of the Republic of Serbia.
- ✓Audits can only be conducted by licensed corporate entities and authorized energy advisors.
- ✓Recommended measures from the audit serve as a basis for the obligor's official energy efficiency plans and programs.
Key benefits for your business
Frequently Asked Questions about Energy Audits
An energy audit is a systematic inspection and analysis of energy flows in a building, process, or system. Its goal is to understand how energy is consumed, locate areas of waste, and identify cost-effective ways to reduce energy input without compromising performance or safety.
An energy passport is a legally required certificate that rates a building's thermal envelope efficiency (class A+ to G) for building permits. An energy audit is a much deeper technical and financial review of active systems (HVAC, machinery, lighting, electrical) that provides a custom action plan and ROI calculations for saving energy.
In Serbia, organizations classified as system energy management obligors are required to conduct audits. This includes industrial companies consuming more than 2,500 toe (tons of oil equivalent) annually, commercial/service companies consuming over 1,000 toe annually, and municipalities with populations exceeding 20,000.
Energy audits are conducted in accordance with the ISO 50002 international standard and the European EN 16247 series (parts 1-4), which define general requirements, field methodologies, auditor qualification requirements, and report structures.
The duration depends on the facility's scale and complexity. For a standard commercial building, it takes about 2 to 3 weeks. For large industrial sites with complex manufacturing processes, it can take 1 to 3 months.
The price depends on the scope of work, size (sqm) of the facility, complexity of the mechanical and electrical systems, number of locations, and the availability of architectural and technical documentation. We provide transparent, custom quotes after an initial consultation. Contact us for a proposal.
Energy audits can only be performed by licensed corporate entities authorized by the Ministry of Mining and Energy, employing certified energy advisors with the required engineering credentials and experience.
We use advanced non-destructive methods, including infrared thermography (to inspect building envelopes and electrical panels), ultrasonic leak detection, combustion gas analysis for boilers, and power quality analyzers for electrical grids.
Start reducing your energy costs today
Schedule an initial consultation with our engineers and learn how an energy audit can optimize your facility's performance.