Break-even distance analysis of residential solar photovoltaic system and line extension for off-grid electrification methodology in the Philippines

Electricity plays a vital role in the economic development of an area, especially in a developing country like the Philippines. Government agencies have various electrification programs to provide electricity, and consequently economic development, to unelectrified communities in the Philippines. This paper presents a methodology that compares two electrification alternatives (residential solar photovoltaic or solar PV systems and power line extension) by means of break-even distance analysis. The proposed method aims to provide government agencies a unified and systematic framework in planning and implementation of electrification programs in the Philippines. The study reveals that solar PV system is the more viable option when electrifying a remote community. However, extending power lines would be a more cost-effective option if multiple nearby communities were to be electrified. Results also show proper load forecasting is important in the comparison of electrification alternatives.