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Energy audit of the enterprise

Energy audit of the enterprise

An enterprise's energy audit beyond any doubt is a procedure that, when done carefully and professionally, can have very tangible benefits both in terms of optimizing current operating costs and in the strategic aspect of the enterprise by deliberately reducing exposure to rising energy prices and improving production competitiveness. In addition to the practical benefits, the energy audit of the company has become from 2016 imposed a mandatory procedure for selected companies by the Act on energy efficiency. The obligation to carry out an energy audit of an enterprise concerns the so- "Large enterprises" which are understood as non-small, medium or micro enterprises. According to a detailed interpretation of the URE (link), the obligation to perform an audit rests with those companies (within the meaning of the Freedom of Economic Activity Act), which during the last two financial years:

  • Employed at least 250 employees a year or
  • has reached the annual net turnover from sales of goods, services and financial operations exceeding the PLN equivalent of EUR 50 million, and the total assets of its balance sheet prepared at the end of one of these years exceeded the PLN equivalent of EUR 43 million.

Do not forget that the law provides for the exemption of this obligation for those entrepreneurs who have implemented and certified energy management system (ISO 50001) or environmental management system (eg ISO 14001) under which the audit has already been carried out.

Auditing is a systematic procedure to organize and analyze often fragmented information about energy-intensive appliances and energy consumption in an enterprise (also costly), identify areas of significant consumption, assess energy intensity of individual areas, and identify the potential for reducing it. The statutory requirement requires a detailed review of the volume of energy corresponding to at least 90% of total energy consumption including transport. From a practical point of view, the principles of auditing can be found in two compatible standards referenced in the Directive - PN EN 16247 and ISO 50001. In each of these procedures, it is crucial for the management to make the informed decision to carry out an audit and communicate it to employees in such a way as to ensure that they are involved in the process.  At the production sites, the audit process requires the company  contribution from its maintenance, energy, technology, as well as representatives of other departments having necessary information as well as impact on energy management. The result of the audit should be sufficiently clear that the essential conclusions are understandable not only for specialist technical services but also for other departments. The order of actions can be summarized as follows:

a) The process of collecting data for audit starts in the accounting, from which the invoices for energy carriers are collected in the chosen balance sheet period and the accepted balance sheet limit.

b) It then determines 90% of the energy volume, and in this respect identifies the targets for which energy is consumed.

c) Generally production plants do not have detailed measurement of production lines, so the allocation of consumption, eg for the purpose of production of individual products, the auditors perform calculation or measurement methods.

d) Each identified consumption area should be assessed for energy efficiency. For example, in the case of a heat source, it is possible to assess the steam production efficiency and compare it with the reference values. In the case of transmission lines, it is possible to determine the energy losses associated with its transmission, in the compressed air system or in the case of a quench furnace, the amount of energy that can be converted into waste heat, etc.

e) For areas where the potential for reduction of energy consumption (not affecting the efficiency of the company's activity) is significant, the selection of modernization projects or optimization measures shall be made and the energy and economic effect of their implementation shall be calculated.

f) And finally, an audit report must be prepared, in addition to the documentation of the steps taken, a synthesis of the conclusions will be made.

Since the audit should be a systematic procedure, it is assumed that audit requests will be implemented at least partially, and the effect of their implementation will be monitored. In order to properly monitor the effects of actions undertaken, audits generally identify areas of consumption and energy carriers that are not systematically measured and should therefore be measured additionally. What can be the basis for developing a concept of energy monitoring.

According to the Directive and the Act, the audit can be carried out both by qualified external and internal experts, provided that they are independent of the audited area. There is no definition of "independence", which can give rise to obvious interpretative doubts. The Directive also obliges Member States to verify the correctness of a percentage of audits that have been carried out by internal experts. Our practice indicates that the most optimal results are achieved when the audit is performed by teams composed of both external and internal experts.

The purpose of NAPE's audit is to provide documented calculations to provide clear information about the company's current energy performance and potential savings. The energy audit conducted by our experts meets the requirements defined in the Energy Efficiency Act of 20 May 2016. Chapter 5 Article 37. 1. If you are interested in an extended offer, the Energy Audit may also take into account the requirements of the ISO 50006 Standard Energy and Performance Guidelines (EnPIs), which are essential for the proper monitoring of the effects of the modernization measures undertaken. The audit includes the existing infrastructure, current and planned usage profile of buildings, used media and their cost. The purpose of the audit is to identify economically justified actions leading to savings in the company's energy needs. The first stage of the audit is the determination of the company's energy balance in the existing state. On the basis of this and considering the planned changes in the organization of production in the future, the options of modernization solutions are agreed, which are then subjected to technical and economic analysis.

It is estimated that as a result of an audit conducted by professional consultants and with active co-operation of the company's employees, production companies are able to identify a non-investment or low-cost opportunity to improve energy efficiency by several percentage points (and a reduction in energy costs by 5% -7%). Achieving higher consumption and cost reductions usually requires investment activities. Nevertheless, even a few percent of the cost of energy savings usually returns in the first year the cost of performing a professional audit.

If you are interested in NAPE's offer for energy audits of companies please contact:

Marek Amrozy
tel. 22 50 54 661



The following are examples of energy audits carried out by NAPE S.A. In recent years, they have documented a wide range of competences for energy and technical analyzes:

BAMA Sp. Z o.o.

(grupa SC Johnson)

KMI Porta

BORNE Furniture

DPD Sp. z o.o.

Cofely EC Słupsk Spółka z o.o.

MPEC Tarnów

LPEC Lublin

PEC Suwałki

Miejska Energetyka Cieplna


SITS SP. Z o.o.

Fabryka Mebli Szynaka
Sp. z o.o.

MM Szynaka Interline
Sp z o.o.

"TMT" Sp. z o.o.



Spółdzielnia Mleczarska

SPIE Polska Sp. z o.o.

H. Cegielski –

Sp. z o.o.

Fabryka Łożysk Tocznych –

Kraśnik S.A.


OSM Łowicz

Elmen sp. z o.o. (grupa PGE)

Pamapol S.A.

L’Oréal Polska Sp. z o.o.