A B S T R A C T One of the biggest problems that face the electric distribution network is the power losses, which could be reduced for obtaining a good voltage improvement. Two effective case studies have been used to minimize the power losses; a conventional case study which could be represented by installing Shunt Capacitors, and a modern case study which could be represented by installing Distributed generators (DG).This paper presents effective approaches, to obtain the optimal size and

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... ation of each of Shunt Capacitors, and DG, based on Newton Raphson Numerical Method. The first approach proposes load flow, and the second approach proposes optimal load flow. A Libyan distribution network was chosen for the discussion and analysis.