A photovoltaic system in a residential building: Environmental and economic optimization analysis

The economic return of a photovoltaic (PV) system grid connected is the object of the present paper. In view of the current energy shortage, global economic growth and environmental pollution, the search for a substitute to replace fossil fuels has increased the importance of photovoltaic system as a long-term, inexhaustible, environmentally friendly and reliable energy technology. In this paper an investigation is conducted of economically optimal PV investment; moreover also the environmental consequences, connected to the implementation of a renewable source based project, are analyzed.