Abstract: This paper presents a general methodology of optimizing the energy performance of a photovoltaic panel in five different cities in Morocco, by varying its slope and azimuth. A domestic wind turbine is also studied in Casablanca. For the same capacity, simulations in TRNSYS software prove that photovoltaic panels have a better yield than the domestic wind turbines. These wind generators can be coupled with the photovoltaic system in order to lessen the intermittence of the photovoltaic production at night and during short cloudy days.