Abstract: This paper proposes a Genetic Algorithm (GA) based technique for the optimal allocation of Distributed Generation (DG) units in the power systems. In this paper the main aim is to decide optimal number size and location of DG units for voltage profile improvement and power loss reduction in distribution network. Wind based type of DG is considered and distributed load flow is used to calculate exact power loss. Load flow algorithm is combined appropriately with GA till access to acceptable results of this operation. The suggested method is programmed under MATLAB software. The effectiveness of the proposed methodology was tested on Standard IEEE 37 bus system.

Keyword: Distributed Generation (DG), Genetic Algorithm (GA),Probability Density Function(PDF), Local Distributed Company(LDC), Radial Distribution system(RDS) , Net Present Value(NPV), Risk Factor(RF).