Hybrid Charging Station Design for Electrical Transportation

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Depleting oil and gas reserves, combined with growing concerns of atmospheric pollution/degradation, have made search for energy from renewable sources of energy, such as solar and wind, inevitable. The main task of this project is to design a system running on renewable energy, particularly wind/PV, in order to promote “clean energies” to the tourist of Borlänge. The second task is to confront several designs in order to decide which one is the most cost effective using Life Cycle Cost analysis. In the present study, hourly mean wind-speed and solar radiation data for the period 1087-2003 recorded at the solar radiation and meteorological monitoring station, Borlänge (60.48?N, 15.43?E), Sweden, have been analyzed to investigate the potential of utilizing hybrid (wind/solar) energy conversion systems to meet the load requirements of a typical electrical chatging station for electric scooters and bikes (with summer electrical energy demand of 1106 kWh). The monthly average daily values for the summer period of solar radiation for Borlänge range from 2.9 kWh/m2 to 5.6 kWh/m2. The hybrid systems considered in the present analysis consist of different combinations of commercial I kW wind turbine, 85 Wp photovoltaic (PV) panels supplemented with battery storage unit and bio-ethanol back-up. The study shows that with one 1 kW wind turbine fitted with a 20 meters high tower together with 1.3 m2 PV, and 5 days of battery storage, the bio-ethanol back-up system has to provide 72% of the load demand. However, this system is not the most cost effective but it is the one matchi...