Dye sensitization is the important phenomena that is due to electron ejection by the photosensitized dyes by random transform to a vacant site when they will be localized for a period of time that depends on the trop site depth relative to the conduction bond, electron may also be transformed to the oxidized dyes in this paper we studies containing. Congo red-triethanol ammine couple, when used for solar energy conversion into electrical energy, gave very good results. The system gave a photocurrent of 180 A, photopotential of 740 mV, and power of 32.46 W. The system has a conversion efficiency of 1.04% and can be used in the dark for 120 min. Various factors on which efficiency of solar energy conversion is dependent are also studied and reported here.