A study on locational configuration of distributed generators under uncertain demand growth

The distributed generator (DG) has several advantages over the large‐scale power plant and is expected to complement the power system. In this paper, we focus on the locational flexibility and short lead time as advantages of DG, and examine the influence of uncertainty of demand growth on the optimal locational configuration of DGs in the transmission network and on the amount of installed DG. The results indicate that the total capacity of installed DGs is greater under uncertain demand growth than under certain growth. It is also indicated that under uncertainty, the installed DG capacity is distributed generally in proportion to the growth of the local loads. The latter finding suggests that the expected load growth at each point could be a useful indicator for screening candidate locational configurations of DGs. © 2000 Scripta Technica, Elect Eng Jpn, 133(4): 53–62, 2000