Emissions of greenhouse gases and other pollutants, derived from the combustion of fossil fuels for heat and electricity generation, can be significantly reduced or even completely eliminated by substituting fossil fuels with a clean energy source, e.g. solar energy. However, solar radiation reaching the earth is diluted, intermittent, and, unequally distributed. These disadvantages can be overcome by converting solar energy into chemical energy carriers, i.e. solar fuels, such as solar hydrogen and solar methanol, which can be long-termed stored and long-ranged transported. Since the energy conversion efficiency of thermochemical processes is limited by the Carnot efficiency, the use of concentrated solar radiation as the source of high-temperature process heat provides a thermodynamically efficient path for the conversion of solar energy into chemical fuels. In this study, water-gas shift reaction in parabolic trough collector is evaluated with regarding the heat exergy and chemical exergy analyses and the results are given as tables and graphs.