Economical analysis of grid-connected solar photovoltaic systems

Most of the grid-connected photovoltaic (PV) systems on residential buildings are installed by individuals interested in generating part of their electricity emission free on-site. For such people the economics of the PV electricity generation was likely to be of secondary importance. PV generation cost depends very much on the location and the amount of sun energy received by the location. Solar technology is relatively expensive, so in order to grow it has to compete with other conventional technologies. For small grid-connected residential rooftop PV system, the comparison with the electricity from other conventional energy sources is usually made by the end user electricity price. Objective of this paper is to present the results of a study conducted on the generation costs of solar PV energy systems for residential applications