This work presents the impact assessment in quality of energy resulting from the implementation of residential artificial lighting and public lighting technologies in the Smart City Búzios, Rio de Janeiro State, Brazil. In the scope are the measurements made in LABLUX-Technical Lighting Laboratory of Federal Fluminense University, with compact fluorescent lamps and LED lamps (Light Emitting Diode), and two different types of luminaires: Sodium Vapour and LED. The simulation of Búzios network was carried out with help of HarmZs, software developed by CEPEL-Center for Electricity Energy Research. Eight application scenarios of lamps and luminaires were made, and checked the voltage distortion generated in the 13.8 kV network, by analysing the criteria established by PRODIST (8 th Module).Through this analysis it was shown that the LED technology has advantages with regard to reduction of distortions as compared to other technologies, for residential lighting or public roads. However, it is necessary a continuous improving of the technology, and new evaluations with the criteria of PRODIST or the long-existing regulation, to ensure the least possible interference harmonics in Power System.