This study evaluates the energetic and environmental performances of a group of renewable energy technologies widely used in the residential sector, by applying them to a typical housing unit that resembles to some extent our local housing units. Then comparing those technologies with the conventional ones. The renewable energy technologies used in this study are: thermosiphon domestic solar water heater with evacuated tube collector, PV system, geothermal heat pump (GSHP), in addition to four hybrid systems that include: the solar water heater with three types of backup systems (diesel, electricity and natural gas) and a hybrid system that combines between the geothermal heat pump and a PV system to operate it.