A conversion of an internal combustion engine vehicle (ICE) to an electric drive vehicle (EV) was a project carried out at the Faculty of Electrical Engineering and Computing (FER). This project has lead to valuable conclusions about the ICE to EV conversion, its costs and benefits. The whole process of conversion will be presented in this article, including the applied regulations, total labor and components expenses. Finally, an analysis of the conversion cost-benefit ratio has been done, taking into account lower fuel prices, maintenance costs, battery life etc. The comparison was done between an EV and a diesel ICE vehicle.

For the purpose of researching charging station distribution for electric vehicles it was necessary to estimate the number of electric vehicles, especially cars in Croatia until the year 2020. Electric vehicles are definitely the future of transportation. First these will be cars since they are the most common means of transport. But besides the vehicles, attention should be paid to the best possible preparation in the field of infrastructure. It means that charging stations as well as a different system in vehicles should be standardized. Finally, all that should be built. Of course, different systems and components will be developed at the same time, so it is very hard to predict the future right now. All the abovementioned greatly depends on the number of electric vehicles predicted for the next 10 years. Of course, the number of electric vehicles that will be sold does not depend only on the offer on the market but also on buyers' purchasing power. Due to everything mentioned so far, it is very hard to predict the number of vehicles sold in the future. On the other hand, such estimations are necessary and they represent the basis for further development of several systems especially infrastructure that needs most time and money for development. This paper will present an estimation of electric vehicle sale in Croatia as well as all the conditions and assumptions used for that estimation.