This work aims to do a comparative study of three
photovoltaic technologies, in terms of electric power produced
and the calculation of the photovoltaic (PV) efficiency, the
results show that the photovoltaic technologies monocrystalline
and polycrystalline have a good photovoltaic efficiency than
amorphous technologie, in the weather conditions of Safi, so we
can say that these photovoltaic technologies, are the applicable
in Safi.