Understanding individuals’ decisions to install photovoltaic solar panels

Ever-growing energy demand since the Industrial Revolution is likely to continue over the upcoming decades, and making the transition to renewable energy sources takes longer than anticipated. Solar energy is one of the most important renewable energy sources, and the cost of installing photovoltaic solar systems has decreased significantly as the global photovoltaic solar system industry has grown since the beginning of this century. In the United States, the adoption of residential photovoltaic solar systems has the potential to add up to a significant change, considering the ubiquity of solar irradiation and the prevalence of low-density residential development. This study investigated the diffusion of photovoltaic solar systems in residential buildings to support sustainable development goals. I built a series of regression models to analyze the impact of socio-economic, geographical, and technical factors on the photovoltaic solar panel adoption rate in residential buildings. I aggregated more than 1 million photovoltaic solar panel installation records at the ZIP code level, which allowed me to calculate the adoption rate and control the abovementioned factors. Moreover, I conducted in-depth interviews with key actors from the solar industry in New Jersey to understand how the solar industry adapts to the changes in solar policies and attitudes of residential users. The results indicate that electricity prices and solar irradiation are the most significant factors for residential users to install photovoltaic solar systems. Moreover, renewable energy policies increase the relative advantage of these systems and directly impact the adoption rates. Investigating California and New Jersey examples revealed that financial programs such as tax credits and renewable energy certificate trading mechanisms create the highest incentive for homeowners. Besides, standardization of the application process, permit fees, and inspections help to reduce the soft costs associated with installations. The case study on New Jersey highlighted the absence of standardized solar application procedures and outdated interconnection standards, which limits the diffusion of photovoltaic solar systems and slows down the transition to renewable energy sources.Ph.D.Includes bibliographical reference