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Methods of determining the class of energy efficiency of the building

Methods of determining the class of energy efficiency of the building

The owners and service companies in multi-apartment residential buildings have been faced with a new task since 2009: the law imposes them to determine the class of energy efficiency of the building, and then to demonstrate it on the special facade plates. Therefore, the issue of determining the energy efficiency class of the building or structure becomes more relevant.

Methods of identification of the energy efficiency class of the building

Federal law No. 261 "On energy saving" prescribes the whole procedure of class determination, and also allows the obtained data to be disposed according to the letter of the law. Please note, that the definition of energy efficiency is a direct responsibility of the head of HOA or the owner of the MAB. In case of failure to comply with the legislation, there is a possibility to be charged an administrative fine. The rules, stipulated by the FZ, are obligatory for execution by physical and legal persons, responsible for the condition of the residential building.

To address the issue of how to determine the energy efficiency class of a building, you need to understand the classification. The Russian system provides seven classes, where A is the highest class assigned to new and reconstructed buildings, and E is the lowest class of energy efficiency, which is assigned only in old houses.

For the buildings that are only rentable and those used for housing for a long time, different methods of measuring energy efficiency classes are provided. There are four ways to determine the desired indicator, among which the responsible specialists, who have the necessary authorizations, determine the necessary:

  • Computer simulation. Specialized computer programs and allows to reveal energy efficiency of the building as a whole;
  • Short-term measurement analysis, designed to evaluate information obtained through statistics and engineering equipment;
  • Analysis of long-term measurements based on continuous or long-term data collection;
  • Analysis of metering devices designed for the whole building.

Among all these methods the most objective and easy one if the fourth method, based on the collection of data from the house registration devices.

Standards regulating energy efficiency calculation

More detailed information on how to determine the class of energy efficiency of the building is available from Order of the Ministry of Construction Russia No. 399/pr dated 06.07.2016, the document includes a list of standards to be executed when determining the class of energy efficiency of the MAB and other objects.