Hybrid systems long term simulation

The paper deals with the estimation of the long term performances of "hybrid systems" for electric energy production. Such systems integrate conveniently different kind of generators and usually they are constituted by traditional electric energy plants as diesel generating set combined with renewable energy generators. A software for the energetic/economic evaluation of the performances of hybrid systems as a function of their configuration and components characteristics as well as of the renewable energy sources availability is presented. Such a package has been developed as part of the Hybrid Simulator Facility built under an EC-JOULE II project. Tests performed on the facility are presented to show the capability of these kind of systems to cover the needs of small communities. Also giving a very good quality of the electric service. Furthermore it is demonstrated how to reduce the cost of the kWh with respect to the one produced by diesel stations for electric energy production in isolated communities. Finally, a simulation relative to the Greek island of Angathonisi is reported and the results show the fuel savings obtained with the integration of a 20 kW wind turbine and 10 kWp PV field.