Economic planning of distribution system

Recently there has been a considerable revival in interest in connecting generation to the distribution network in the form of Distributed Energy Resources (DER). DER benefits are site specific. In order to optimize the advantages of distributed generation it holds compulsively to reform management and to re-validate the operations of distribution network. Minimization of related costs and satisfying technical and physical constraints is also the key issue to concentrate. This paper presents a GA based methodology for DER planning in 37-bus IEEE distribution system for constant loading conditions. Various loading levels as specified by discos are taken into consideration. Further the subsystem and integrated distribution system is also taken into consideration.