This bachelor thesis deals with the field of intelligent wiring and presents its advantages in comparison with a classic electroinstalation. A special attention is devoted to the most widely used and expanded standard sof opened systems KNX/EIB. In the first part, an explanation of the way the inteligent wiring works, its main parts, topology and possibilities of control and visualization is provided. In the second part, the work is dedicated to presenting an energy savings, mainly in ligthening and heating, which are possible to achieve by using inteligent wiring, Finally, there is a project electroinstalation in a family house, which is built on the elements of the KNX/EIB system. There is also a comparison with the classic (conventional)...