The Maurice Ile Durable (MID) initiative was launched by the Government of Mauritius in year 2009 to transform the country into a sustainable island. The wind sector is experiencing a sustained growth and many wind farm projects have been announced by the private sector under the Clean Development Mechanism (CDM) and sales of carbon credits namely the 18 MW wind farm project at Plaine des Roches and the 22 MW Wind Farm at Britannia. As land resource in Mauritius and Rodrigues is not unlimited and only a few sites have the necessary characteristics for exploiting wind potential. Therefore, it is essential for policy decision makers to consider the possibility of using other local renewable energy resource as part of the energy mix (including wind energy) for electricity production in Mauritius and not to concentrate solely on wind energy. In that context, this study was initiated to assess the renewable energy configuration system in Mauritius and Rodrigues including wind energy using a simulation optimization model. An economic assessment was carried out for different configuration of renewable energy system including wind energy for Mauritius and the island of Rodrigues using a simulation tool namely HOMER software. Two case studies were proposed for Mauritius and Rodrigues to include renewable energy sources such as the use of bio-fuel, renewable biomass, mini hydro plant and solar energy using PV Grid tied systems.