Renewable energy systems are considered essential green energy technologies that could replace a considerable proportion of the current fossil fuel-based electricity generation systems; hence the interest in these technologies is on the rise. However, due to the intermittence nature of most of the renewable energy sources, in particular wind and solar, there are major concerns with the large integration of these technologies in many of the current grid systems. This paper presents a parametric analysis of sizing a large-scale energy storage system that may help to stabilize energy supply based on large-scale grid integration in Suez area in Egypt. The system is based on a Compressed Air Energy Storage, which has the ability to accommodate a large volume of energy from large-scale wind energy integration to the Suez electricity grid system. The paper analyses the characteristics of Suez grid system and the expected wind generation, based on the current integration projections. The results show how compressed air energy storage could add value to the installation of large-scale wind farms in the Suez area in Egypt and indicate the technical ability and successful operation of the proposed system under certain circumstances of the Suez weather conditions.