The energy performance certificate or as it is known energy certificate or otherwise PEA is the ranking of your property (building or building unit-apartment) in relation to energy consumption and energy losses. These concepts may seem close, but in practice their meaning is different. By energy consumption energy inspectors mean what heating and cooling systems spend on any form of energy (oil, electricity, solar, etc.) to maintain constant temperatures inside the house or for other uses. The concept of energy losses includes systems such as the lack or insufficient insulation of the walls of the house, the old type of windows, etc. which instead of helping to maintain constant temperatures, have a negative effect on it. The PEA classifies the building if it is a detached house or if it is to be issued for the entire apartment building and the building unit that constitutes the individual apartment in the respective energy class based on the electronic systems of KENAK. and also suggests some interventions to improve this class and the large one if there is energy consumption.
The classes are 9 starting from H as lower and reaching A + as higher. In between there are A, B +, B, C, D, E and Z. The transition from one class to another is not something simple or something that will certainly happen if the energy inspector’s proposed interventions are not followed.
The PEA is issued after the processing of the building elements and after being compared through special programs that the energy inspectors have with the ideal building that has the same surface and the same energy needs, it results its energy class. More specifically, it compares the annual primary energy consumed by the building under study in kW / m² with the same consumption of the ideal building. From this comparison arise the needs for reduction of the annual consumption of primary energy mentioned in the final document of the PEA.
The interventions mentioned above are suggestions of the energy inspector to improve the annual energy consumption and improve the living conditions in the property. These suggestions may concern the application of some kind of insulation of the external vertical walls or the roof, the replacement of the frames, the replacement of the shading systems, the installation of systems with alternative energy sources (eg solar, gas heating system and .ά.). These suggestions, which are not limited to what we have mentioned – we are just mentioning the most common ones – can be implemented either separately or in combination for a better result. If it is an extremely energy-intensive home, perhaps a larger number should be made and most likely all the interventions proposed by the energy inspector in the PEA to achieve the desired goal.
Energy Performance Certificate, or Energy Performance Certificate ( PEA) is required for:
