The operation of electric vehicles from renewable energy systems is an environmentally compatible technology. In general this method however has in practical applications today several significant limitations. In this paper a specific combination of electric vehicles with photovoltaic systems is considered. Electric scooters, which are mainly used for home to work or home to education transports, are operated from a grid connected photovoltaic system. For this application two strategies for a smart charging of the electric scooters are investigated. The results are showing that this application allows already today an operation of electric scooters against fuel scooters with no higher costs and with significant lower CO 2 -ejections.

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Electric vehicles (EVs) today in general are operated with energy from the electric grid. So energy for the EVs is basically available at almost each place on the world. If the energy for the grids however is produced to a big extent from fossil fuels the EVs are not much more eco-friendly than conventional cars. In this paper a field of application is investigated where EVs can be operated very eco-friendly by renewable energy. EVs which are used mainly for home-to-work and home-to-education transports can be charged at the placesof-work respectively at the places of education directly from PVsystems. In a field test with six electric scooters, which were used by students for their travels from their homes to our university, the characteristics of these EVs at a charging station at our university was analyzed. Based on these results the charging of the EVs during typical days was analyzed. The results are showing that the EVs can be charged to a big extent from a very limited PV-system.