Solar photovoltaic and thermal systems for electricity generation, space heating and domestic hot water in a residential building

In this paper a techno-economical analysis has been carried out for the solar energy technologies (PV and thermal) and GSHP system employed for energy supply in a residential building for different end uses e.g. heating, hot water and electricity. The building is a three-story located in Milan, Italy. The building was designed based on current regulations on energy efficiency in buildings. The HVAC system is designed for minimising energy consumption by the appropriate choice of the heating and cooling systems. The space heating energy is supplied by a GSHP system with vertical ground heat exchangers. The domestic hot water is produced by a solar thermal system. A major part of electricity required for lighting, domestic appliances and the functioning of GSHP system is generated through a PV system. Both the solar thermal and PV systems are installed on the building roof.