Field experience and comparison of photovoltaic off-grid power systems and reticulated supply

This paper reports the findings of a recent survey of remote area residents concerning their experiences with PV based off-grid power systems and grid supply. Continued advances in off-grid systems would seem to make them an increasingly cost effective and 'grid equivalent' alternative for remote areas. While economic studies of the two supply options have been reported, less is known about other important factors for consumers assessing the viability of off-grid systems. Residents in remote areas were therefore surveyed on their choice of off-grid or grid power, and their experiences with this supply. Findings include the importance of supply quality and reliability for those who chose the grid option. Their experiences, however, suggest that off-grid power is more reliable and of similar quality. Overall, findings support the conclusion that PV-based off-grid power systems are a viable alternative to reticulated supply for remote consumers.