Energy certification of building
Energy certification of building
The energy consumption of buildings accounts for around 40% of the total energy consumption of the European Union. Most of energy in buildings is consumed on heating, air conditioning, ventilation, hot water and electricity supply.
When choosing to build or restore your housing, respecting the principles of energy efficiency is a smart and informed choice. In addition, it also significantly reduces the impact of fluctuations in energy costs on the total costs of the building in the long run.
Energy certification of buildings is a process in which the energy performance of a buildings or a building unit being used is determined with issuance of:
- Energy performance certificate of a building (for buildings or building units being used, valid for 10 years),
- Temporary energy performance certificate of a building (for new buildings, buildings and building units to be reconstructed or renovated, valid for 2 years).
It is an instrument that enables a potential buyer or tenant of a building to find out the energy consumption of the proposed building when in use. Similarly, the energy performance assessment of a building is useful for the owners or managers of buildings.
The energy performance of a building is expressed in kilowatt-hours per square metre per year (kWh/m2 per year). The assessment of a building is based on the methodology for calculating the energy performance of buildings. It calculates the energy consumption for heating, cooling, ventilation, hot water preparation and lighting of the building. When assessing the energy performance of a building, an independent expert not only determines the energy consumption of the building, but also makes recommendations to improve the energy performance of the building.
You are welcome to learn more about the energy performance of buildings on the website of the Ministry of Economics.