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EN 50597

The existing EVA Energy Measurement Protocol (EMP) 3.1a will be replaced by EN 50597 in the course of 2018.
The European Committee for Standardisation (CEN) and the European Committee for Electrotechnical Standardisation (CENELEC) have published a new approved methodology for measuring the energy consumption of refrigerated vending machines.

EVA recommendation  

Until the expected entry into force of the new EU Regulations for refrigerated vending machines in the course of 2018, the EVA advises that the EVA EMP 3.1a can still be used as the reference document for calculating the energy efficiency of a refrigerated vending machine. However, the EVA does ask that refrigerated vending manufacturers now also test their machines according to EN 50597 and send their results to the EVA. Consumption results can be presented to customers alongside the EMP calculations, but it should be minded that the energy rating scale provided by the EMP is for comparison purposes and absolutely should not be used in function of a label.
We are pleased to announce that a range of EVA Members were largely responsible for the significant work undertaken in order to produce this document and achieve European approval. It is expected that not only the European Union will able to reference the new standard in their legislation, but also all national governments and institutions will use it for determining tenders or other benchmark requirements.

For more information on EN 50597 and for purchase options, please consult the CENELEC website:

EVA Energy Measurement Protocol

The EVA EMP describes a uniform and objective method to measure the energy consumption of vending machines.
The EVA EMP was designed to cover all food and drink machines, cold and hot, refrigerated or not. For all machines, the energy consumption is measured in stand-by situation and vending situation. For cooled machines, the energy consumption after reloading is also measured.

The EVA Technical Committee, together with some National Associations, members of the EVA, observed that there was an increasing demand for a declaration of energy consumption to be developed for vending machines. The first issuance of the protocol was in 1999. Since then the 'energy' issue had become an essential issue to the industry and the EVA Technical Committee undertook the task of updating the document.


  • A Europe-wide recognised standard for energy measurement improves the image of the vending industry in Europe, as a responsible trade of high quality standards.
  • By using the standard, the measured energy consumption is objective and comparable. The information is thus more useful for the customer.
  • Because the method is uniform and objective, fair competition is stimulated.
  • It is voluntary: using the standard is not mandatory but strongly advise.

Who is going to use the EVA EMP?

The standard will be used by vending machine manufacturers. They will be able to benefit from a commonly accepted standard and refer to EVA EMP. They will be able to quote the EVA EMP alongside the energy figure on the capacity label in the machine.

Operators will use the energy figure 'with reference to EVA EMP' in their commercial activities such as quotes, brochures, leaflets, etc...

In the case where vending machines are imported from outside Europe, or the manufacturer does not declare the energy consumption 'with reference to EVA EMP', the operator can execute the measurements by himself, and use the result for commercial pourposes.

Clients, who already use declarations of energy consumption of vending machines as a criteria to select machines, will use the declaration 'with reference to EVA EMP' and will welcome this initiative because the information will be comparable.

The standard, along with ISO 14000, will increase Manufacturers' awareness to energy efficiency.
2018 European Vending Association