With the growing population, and increasing of pollution at a faster rate by using conventional source of energy leads to global warming, natural hazards, access earth mining worldwide and demand of energy at low cost focusing the researcher to substitute the renewable energy system to meet the requirement of energy consumption has reached to peak level worldwide and hence Solar energy is becoming one of the important energy in the future as a great renewable energy source.However the cost of electricity from solar PV cells is still several times higher than the conventional power generation. So it is very necessary to improve the efficiency of the solar PV cells. It is necessary to have that source available easily and in sufficient quantity so that with the diminishing non renewable source basic need of energy can be fulfilled. This source can be the all time available source. In this paper, it is seeking into the tremendous progress made in recent years on a photovoltaic (PV) cells materials, geometrical shapes and devices in terms of their conversion efficiencies.Solar cells vary its performance under temperature changes or it can say that on climate change because temperature is variable with respect to climatic change, as climate condition is also variable with seasonal change (i.e. summer, rainy and winter) even hours to hours, and day to day. Change in temperature affects its power generation. The rapid development of solar PV cells has created challenging environment in the future. Efficiency can be increased either by changing PV material, concentrating solar rays or using solar tracking system. This paper deal with a brief overview of the recent progress in PV cell efficiencies, exergy and power generation based on different climatic condition and on the selection of good quality materials and devices so that maximum sun heat can absorbed and power conversion takes place.