TECHNICAL AND ECONOMIC JUSTIFICATION OF COGENERATION TECHNOLOGY WITH THE USE OF ELECTROMOBILE

Purpose. To evaluate the economic attractiveness of alternative energetics, and in particular Vehicle-to-grid (V2G) technology, i.e. the use of an electric vehicle battery for cogeneration into the network. Determine the economic indicators and conditions under which this technology will be attractive to electric vehicle owners Methodology. The forecasts of the National Electricity Regulatory Commission of Ukraine, analytics data and manufacturers of electric vehicles were used to calculate economic indicators Findings. The overview of the trends in alternative energetic in Ukraine and, in particular, electric mobility in the context of their economic feasibility is completed. The analysis of electricity tariffs received from renewed sources is carried out and the forecast for the share of alternative energy of Ukraine in the future is made. Aspects of V2G technology are considered - the use of electric vehicle battery as an intermediate energy storage, charging them during low nightly electricity tariff and return to the grid for partial coverage of peak load. It is shown that the shortening of the battery life due to the increase of charge-discharge cycles makes this idea incapable at the current level of cogeneration tariff. Originality. It is proved that to increase the attractiveness of V2G technology for the electric vehicle owner, it is necessary to increase the capacity of electric vehicle batteries, to increase the capacity of charging and discharging devices and to increase the level of the «green» tariff or set a special tariff for cogeneration from electric vehicles. Practical value. The numerical values of electricity tariffs and the parameters of charge-discharge of electric vehicle batteries necessary for the feasibility study of cogeneration technology from electric vehicle batteries to the power grid are given. The tariff limits and system parameters for which the V2G technology will become self-sufficient are determined.