Technical-economic Analysis of Ensuring the Heat Independence for Residential Building in Romania

This paper presents a comparative study between two systems for production of thermal energy for heating and hot water for a residential building. The first system using non-conventional energy sources (proposed and analyzed) and the second system using current sources of energy. To accurately assess the performance of a hybrid system providing heat and hot water requires some assumptions about the consumption of heat and domestic hot water, taking into account the climate zones of the target location, intensity of solar radiation for these areas and energy price.