Although DIG and shunt capacitor are very useful for the distribution system, but to maximize the obtained benefit from the system, placement of these devices at optimal location with appropriate size is very much necessary to get the highest benefit from the devices. In this regard, this paper proposes the optimal deployment of DIG and shunt capacitor in a 33-bus radial distribution system to overcome line losses and increase the financial benefit of the distribution system owner. Different indexes such as Cost Index (CI), Active loss reduction index (ALRI), and Reactive loss reduction index (RLRI) are proposed and formulated accordingly. Different cases are considered and the obtained results are deeply analyzed for finding out the best option of system operator.

After a detail introduction in Section 1 of the manuscript, Section 2 presents the modeling of DIG and shunt capacitor. The objective functions of this study are discussed in Section 3. Section 4 represents the solution algorithm. The result and analysis part is given in 5th Section and the conclusion of this study is represented in 6th Section. 

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