Selection of Potential PV Locations A Case Study in Bali

A 1 MW on grid photovoltaic system has been developed in regency of Bangli, Bali, Indonesia. The PV system is connected to a 20 kV distribution network, namely feeder “Bangli”. The PV generated electricity is injected to the network by utilizing 5 transformers, each of them with a capacity of 250kVA. The PV system accommodates land of about 1 hectare. There are a number of feasible locations for placing the system, based on different criteria. This paper discusses the selection of potential PV locations along the medium voltage distribution feeder. The study utilized bus sensitivity analysis as parameter in choosing five options of PV locations. In order to simplify the calculation complexity, the feeder is modeled by clustering the distributed load. The 5 alternative locations then were scored further based on 4 criteria, which include power loss, land utilization and availability, bus minimum voltage, and accessibility to the 20 kV network. Based on the given criteria, it was found that the simple approach is very useful to assist in deciding the best location for the PV system.