Energy, Environmental and Economic Effects of Electric Vehicle Charging on the Performance of a Residential Building-integrated Micro-trigeneration System

In this paper a micro-trigeneration system (composed of a 6.0 kWel cogeneration device feeding a 4.5 kWcool electric air-cooled vapor compression water chiller) serving an Italian residential house was investigated by using the dynamic simulation software TRNSYS. The charging of an electric vehicle was considered by analyzing a set of EV charging profiles representing different scenarios. The simulations were performed in order to evaluate the capability of cogeneration technology in (i) alleviating the impact on the electric infrastructure, (ii) saving primary energy, (iii) reducing the carbon dioxide equivalent emissions and (iv) the operating costs in comparison to a conventional supply system based on separate energy production.