Analysis of the profitability of a photovoltaic installation in the context of sustainable development of construction

The article presents the general problem of sustainable development of construction in Poland. The principles of photovoltaic cell operation are discussed depending on the type of panels used. The issue of efficiency is presented on the example of a single cell. The article presents currently available photovoltaic systems, their construction and ways of connecting solar modules. The aim of the study is to analyse the profitability of a photovoltaic installation for individual energy consumers on the example of a household located in an energy district in central Poland. In addition, boundary conditions justifying the economic basis for the construction of photovoltaic power plants producing energy for the own needs of customers have been specified. As a research method, a standard cash flow model was adopted for an investment project consisting in the construction of a photovoltaic installation. The revenues are avoided costs of purchase and distribution of electricity through the production of electricity from PV for the own needs of consumers