The aim of this paper is to check the nexus between the demographic factors and the use of Photovoltaic solar energy between two Algerians cities Algiers and Tizi Ouzou. To check this issue, we collected 42 questionnaires online and face-to-face in order to measure the relationship between demographic factors and the willingness of respondents to install the PV solar kit. Moreover, in this paper, a novel method of consumer’s segmentation in green Marketing is presented. Finally, a feasibility study was done to examine the profitability of the photovoltaic solar energy in a virtual house located in Algiers. The findings of the study indicate that the majority of respondents are aware of the use of renewable energies through results obtained after the use of the McNemar test. However, after checking our feasibility study, the main result shows that there is no profitability that belongs to the use of photovoltaic solar energy in houses for the residential sector. It should be remembered that the only demographic factor, which affects the PV instalment decision, is the city of living.