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Energy Certificate

The energy performance certificate of a building is a technical document for information purposes that certifies the energy performance of that building.

In the European Union, the EC Directives 91/2002 and 31/2010 regulate the obligation that all the building categories must have energy certificates to show the energy consumption efficiency. Such directives apply to all the members states and also to those in the accession process. 

The simplified methods for calculation of the heat requirements are based on the European Standards EN 832 and EN ISO 13790, which were designed to unify the concept of energy consumption in the building sector and to compare the performances thereof. 

In Romania the obligation to obtain the energy certificate is set out in the Law no. 372/2005 on the building energy performance and the Order no. 1459/2007 approving the Methodological Rules on the energy performance of buildings, issued by the Ministry of Development, Public Works and Housing.  

The energy performance certificate can be issued as a result of an energy audit process conducted with the purpose of selling and buying, of leasing or for the purpose of thermal refurbishment and upgrading of the building. 

Why is the building / apartment Energy Certificate necessary?

The Energy Certificate indicates the energy performance and environment class of a building and gives an energy mark to the building, which provides information to the buyer about the real energy consumption. In other words, it shows how much the utility bills cost per month and how much one needs to spend to get optimum thermal comfort.

The Energy Certificate will help determine the building price more accurately, in that the prices of the houses that have a higher energy mark will go up, since they are cheaper to maintain, unlikely those with low energy efficiency.

What are the energy performance classes according to which the buildings are ranked and the marks are given?

According to the proven energy performance, the buildings are ranked in 7 classes on an energy scale starting from A, which is the lowest energy consumption class to G, which is the highest specific energy consumption. The marks are given from 1 to 100, the mark being determined by well-established criteria; the higher the consumption efficiency, the higher the mark.

The issuing of the energy performance certificate consists in:

  1. evaluating the building energy performance in normal conditions of use;
  2. defining the reference building that is attached to the actual building and evaluating the energy performance thereof;
  3. ranking the building in the energy performance and the environment class.

Following the thermal energy analysis, a thermal and energy analysis report will be drawn up for the building to include: 

  1. the main technical and energy features of that building;
  2. data about how the total annual energy consumption is determined with regard to the heating, ventilation and air conditioning, artificial lighting and preparation of the household hot water, as estimated for that building; 
  3. input data;
  4. calculation summary or denomination of the certified calculation software used;
  5. Conclusions chapter to show the energy information specific to the building, which will be entered in the energy performance certificate, including the energy score given to the building. 

The documents that are necessary for obtaining the energy performance certificate for buildings and plants are:

  1. The building title; 
  2. The document showing the construction year and the construction type;
  3. Cadaster documentation; 
  4. Building location plans; 
  5. Cadaster Plan – showing the building site in relation to the cardinal points and neighbours;
  6. Building plans / scale drawings by storeys;
  7. Drawings of the installations; 
  8. Technical details about the construction material employed, technical details about the thermal and the ventilation equipment and plants, the hot and cold water supply;
  9. Technical structural resistance expert report (if any);
  10. Consumptions in the recent years, monthly electricity, gas, water, sewerage consumption.

During the process for the issuing of the energy performance certificate, the auditor or the audit team must inspect the building.
The building Energy Performance Certificate is valid for ten years.