Abstract
In Saudi Arabia, fossil-fuel is the main source of power generation. Due to the huge economicand demographic growth, the electricity consumption in Saudi Arabia has increased and should continue to increase at a very fast rate. At the moment, more than half a million barrelsof oil per day is used directly for power generation. Herein, we assess the power generationsituation of the country and its future conditions through a modelling approach. For thispurpose, we present the current situation by detailing the existing generation mix of electricity. Then we develop a optimization model of the power sector which aims to define the best production and investment pattern to reach the expected demand. Subsequently, we will carry out a sensitivity analysis so as to evaluate the robustness of the model’s by taking into account the integration variability of the other alternative (non-fossil fuel based) resources. The results point out that the choices of investment in the power sector strongly