Energy audit for large corporations

For large companies, the mandatory 4-yearly energy audit is due again in 2023. It is a particularly fortunate timing right now, as we are in the middle of an energy crisis, and even companies that previously saw mapping energy loss as just another obligation now might regard it as an opportunity. A comprehensive energy audit results provide the corporate management with detailed information on energy saving and optimisation opportunities. An energy audit can also help lay the foundations for improvements and serve as a baseline documentation of ISO 50001 energy management system.

The energy audit is an analysis of energy consumption and building related costs, technology and transport activities, according to the standard of MSZ EN 16247-1-4. We prepare specific energy indicators and make proposals for energy saving opportunities, supported by return on investment calculations. 

What do we offer in the frame of an energy auditing process?


During an on-site visit we assess the production processes, equipments, tools, energy supply system, metering and sub-metering points.


In cooperation with our client, we collect and analyse data, documents and conduct in-depth interviews with the experts responsible for the operation and technological processes of the company or property.


We prepare an audit report and an executive summary, which will be presented to the management and colleagues responsible for the area, thinking together about the most cost-effective improvement options, helping to formulate a short as well as a longer-term strategy.

The following areas will be investigated:

the condition and efficiency of building engineering systems
architectural energy efficiency improvement options for buildings
possibilities of replacement of natural gas-based mechanical systems in the building, in technological units
energy flows in technological processes and the production of waste energy and it’s potential utilisation
the possibility of utilisation of renewable energy sources (solar energy, heat pumps, geothermal energy)
financial assessment by examining return on investment, complemented by financial sensitivity analysis

Corporate energy audit - technology, building, transport

The next deadline for completion of the mandatory 4-yearly audit is 5 December 2023, regardless of the date of submission of the first energy audit by the company.

When is the cost of an audit recovered?

In our experience, in cases where there was no energy specialist involved or no energy audit in the last few years, we can identify significant immediate savings, with the audit fee being recovered almost immediately.

Preparation time

It usually takes between 20 and 30 working days, depending on the data provided.

Trust and guarantee

Since 2016, we have been assisting large companies in this area as an authorised energy auditing organisation and entitled to carry out energy audits since the introduction of the Energy Efficiency Act LVII of 2015. Our team of experts, together with experienced auditors in the field, will carry out the assessment and draw up improvement plans. Providing complex advice to our clients, we always examine the tax benefits, subsidies, financing options and, if required, the EIF option.

Our company has liability insurance covering energy audits.