The dearth of clear and potable water is one of the most critical problems experienced all over the world. There is an urge that the existing problem be addressed immediately. Pure water resources are getting depleted day by day with an increase in pollution and population. The possible way to get rid of this problem is to transform the accessible sea/brackish water into fresh water through energy utilization. The conventional way of utilising energy is also a persisting problem in which the world is shifting towards sustainable energy sources for sustainable development. Solar energy is more efficient and abundant when compared to other renewable sources. Thus, in this context, a single slope solar desalination system with energy storage (phase change materials – PCMs) is designed and developed to analyze the Energy, Exergy, Economic and Environmental (4 – E) performance. The 4 – E analysis of the developed solar still system resulted in a 26.51% average energy efficiency, of 2.58% of exergy efficiency, the cost per one litre is $0.0084 and the carbon credit obtained from the system is $ 183.5.