RESUME ABSTRACTIn most remote areas, the diesel generator is the main source of electrical energy. For these regions, the price of extending the electricity grid is prohibitive and the fuel price increase dramatically with the remoteness. The continuie decline of renewable energy prices and their increased reliability led to greater use of renewable energy sources for the electrical generation in remote areas.In Quebec, in parallel with the rise of wind power, mainly in the form of large parks connected to the central grid of distribution, the power supply by diesel of the remote sites is still an immense technical and financial challenge. Indeed, this electricity production is relatively inefficient, expensive and responsible for the emission of large quantities of greenhouse gases (GHG). With the explosion of the fuel prices and high transport costs, the financial losses are colossal. These deficits, 133 million dollars per year according to HydroQuébec, reflect the difference between the high costs of local production of electricity in these regions and the uniform price of electricity.Paradoxically, most of these communities are situated in regions characterized by a sufficient wind resource for a commercial exploitation. The use of wind-diesel hybrid system (WDHS) in these autonomous networks could reduce the operating deficits. However, the profitability of the WDHS is reached at the condition of obtaining a high penetration rate of wind energy (PRWE) 3 which is possible only by using storage systems. After a thorough study based on a critical analysis of all the characteristics of the possible energy storage technologies, it was proposed a solution that meets all the technical and financial requirements while ensuring a reliable electricity supply of these sites. It is the wind-diesel hybrid system with compressed air energy storage (WDCAHS). This study led to the elaboration of 2 technical 3 PRWP -Penetration rate of wind power is the ratio between wind power and total power consumed by the load at the given moment PRWE -Penetration rate of wind energy is the ratio between the annual wind energy and the total annual energy consumed by the load The use of compressed air as the agent of energy storage is perfectly adapted as much to the wind production as to the diesels. In principle, the compressed air stored in the reservoirs during the periods of excess wind power production (strong wind) would be injected into the diesel generators in the case of the medium scale applications (villages, islands, ...) or in the compressed air engines for the small-scale applications (telecommunication stations, border posts, ...) and that during the periods of weak wind power production (low or no wind). This hybrid system would act in real time in order to maintain an optimal balance between the generated and the consumed powers and realize a remarkable decrease of the fuel consumption of diesel engine, whatever the level of the power demand.A modeling of each system was realized according to its nature of application....