The topic of this paper is the impact of selected social and personal factors on the respondents' decisions regarding investments in home solar power plants. The term "home solar power plants" refers to systems that are installed on house roofs and use photovoltaic cells to convert sunlight into electricity suitable for household use. By analyzing secondary data sources, a theoretical framework of consumer behavior and purchasing decision-making is provided, along with various social and personal factors that influence these processes and behaviors. For the purposes of this paper, primary research was conducted using a survey questionnaire, and the results were analyzed using multiple regression analysis to determine the influence of defined independent variables on the respondents' decision to invest in home solar power plants. The paper is divided into six sections, starting with an introduction that briefly describes the area and aim of the work and research. The second section provides a conceptual definition and classification of types of home solar power systems. The third section is dedicated to the theory of consumer behavior and an overview of factors that influence it. The fourth section discusses the process of making a purchasing decision and the personal and social factors that influence the process itself. The fifth section provides an analysis of the results of the primary research conducted through the survey questionnaire, while the sixth and final section is dedicated to the conclusion, offering a review of the entire theoretical framework and the results of the research conducted.