Climate changes have sparked a global trend of decarbonization in all economic sectors. One of them is the sector of road traffic, in which an increasing number of countries, followed by the entire autoindustry turn to electromobility. The infrastracture for electric vehicles is still developing, but an increase in electric vehicle purchases, as well as ambitious goals of the European Union, including Croatia, for transport electrification demand greater investement in the infrastructure of fast electric vehicle charging stations. This also raises the question of a possible overload in the electric power infrastructure due to the electrification of transport and other energy-intensive sectors. Energy transition that is based on the production of electricity from variable renewable sources is not possible without the implementation of new technologies for power system management, such as stationary battery storage and demand response technology, but it also requires changes in the electricity market. This paper contains a model of the transmission system of electricity in the Kvarner area with implemented smart grid features. It was created using the GAMS software tool, which is apt for modeling and solving linear and non-linear programming problems. The paper shows the results of the effect of road traffic electrification in the Kvarner area, taking into account weather conditions which affect the possibility of producing electric energy in wind farms and photovoltaic power plants. The paper includes an analysis of the possibility of the installation of stationary battery storage and the impact of consumption response technology. The results are also valorised based on operational costs of the entire system and an insight is given into the electric energy marginal price trend.