The use of household renewable energy installations are more and more perspective. The energy stored in such systems (capacitors, accumulators) not only reduces the overhead costs of a given household, but also make it partially independent of the supplier. The profitable conditions of the wind generators planted on the roof level are to achieve the utmost working hours. The direct and indirect impacts on meteorological parameters of different urban built-up zones are separately various (Stewart - Oke 2010). Wind climatology studies that referringrefer to Hungary cover a wide spectrum, since comprehensive description of the issue can be given by complex statistical analysis (Tar, 1983; Wágner - Papp, 1984; Tar, 1991; Tar, 1999; Makra et. al 2000a), by modelling (Radics, 2003; Radics - Bartholy, 2005) and by remote sensing techniques (Varga - Németh, 2005; Varga - Németh - Dobi, 2006). In this study, the effect of urban environment on wind system is examined.