A Review on Feasibility of Solar Based Renewable Energy: A Projection Up to 2050

As energy demands are increasing exponentially due to the rapid growth in the world’s population as well as in economic and technological advancement, to meet the needs of an increasing energy-dependent society, the world needs to think about sustainable renewable sources. According to the World Energy Assessment, by the year 2050, the energy demand is expected to increase near 30TW [1]. Existing non-renewable sources, especially fossil fuels, are rarely sufficient to meet this enormous energy demand. The objective of this paper is to discuss why we should focus on renewable sources, its immense feasibility and how these sources, especially solar energy, will change the energy scenario in upcoming decades. In this paper, the whole work is divided into three sections. In the first section, the importance & the motivations behind concerning renewable energy is discussed. Furthermore, in the second and third sections, the present scenario of renewable energy as well as solar cell technology and a projection up to 2040–2050 along with scopes and challenges will be discussed respectively.