Energy modelling of the building

The paper is focused on the modelling of energy consumption of buildings depending on outside weather and depending on the insulation of buildings. Based on the values of the outside temperature changes, schedule room-temperature set point and the measurement of the energy supply to the building it is possible to calculate the energy performance of buildings. In the calculations, it is necessary to consider not only the energy entering a building but also all the internal resources of the individual consumers as well as energy radiating from individuals living in the building. It is also necessary to take into account the intensity of solar radiation and also wind speed and direction. On the basis of precise measurements, it is possible to create a model of the building in terms of energy consumption, which can be compared with the theoretical losses imposed by the technical parameters of the building. This model can be used to actively control the operation of power equipment in a building according to the outside weather and the needs of the population. Based on the parameters it is possible to design a system of basic and additional heating based on renewable resources or recuperative technologies. © Springer International Publishing Switzerland 2016.