CSP technology is a powerful and smart way that allows to produce power by using mirrors to concentrate solar beams on a small area. This thesis work is focused on theorizing and estimating the performance of a parabolic trough solar field not only from a theoretical point of view but also from a practical one through a Matlab model developed with the help of two professors from department of Water, Energy and Environment of the Cranfield University. Such technology is already in use, and a new one is currently under construction Solar field in NEOM, Saudi Arabia, intended to fuel a Multiple Effect Desalination Water Plant with the help of a thermal storage system.