Abstract
The efficiency of the production of electricity from solar energy depends on technological developments and the performance of the photovoltaic panels. A positive trend depends on diversifying the materials used to manufacture plates and adapting them to the climatic conditions. The article presents several technological aspects to give an idea about the evolution of the yields of photovoltaic panels, especially about the photovoltaic technology in the first, the second, and third generations. After the statement of the main characteristics of the photovoltaic panels, an analysis of the factors that can affect their performances and can create difficulties in implementing projects is made. This approach aims to choose the most advantageous combination of concepts and techniques when making photovoltaic parks.