It is important to supply sufficient good quality water to remote area
s to satisfy various needs. Due to the high insolation intensities in
Saudi Arabia, solar energy was selected to supply electric power to th
e equipment used in the desalination plant, i.e. submersible pump, rev
erse osmosis unit, storage batteries, etc. The plant is now under cont
inuous operation (24 h per day). In this paper, the various pieces of
equipment in the PV systems and their primary operation and performanc
e are discussed.