Sustainability is one of the prime issues across the world. Therefore, it is also included in the list of Sustainable Development Goals (SDGs). Therefore, the implications are much higher for developing sides of the world. Therefore, this study has been conducted specifically to check the use of on-roof installation of solar PVs in urban residential areas on the decrease of energy shortfall as well as upon sustainable growth of the country’s economy. Although for the purpose of data collection, the sample has been drawn from the energy sector companies of Karachi in order to reflect vividly upon the sustainable economic growth of the country. The sample size is of respondents from the energy sector and analysis has been made through SMART-PLS using PLS-SEM findings indicating that the use of on-roof solar PVs is substantial for the decrease in energy shortfall as well as for the sustainable economic growth of the country's decrease in energy shortfall as well as for the sustainable economic growth of the country