Abstract
The wide use of photovoltaic and solar thermal hybrid systems is recommended in order to enhance the use of solar energy as one of the substitutes for oil. The panels that were made of amorphous silicon PV modules have been used successfully since several years ago as the absorber plates of the air collectors of solar houses. More effort should be done to build this kind of solar houses to increase the demand of solar energy. Hybrid panels can be used as the evaporators for heat pumps to put up a better performance. Further researches on this type of panels and systems are necessary to produce them commercially.
