A model is proposed to interpret the electrical conductivity and the Seebeck coefficient of wüstite. The methods for evaluating the concentration of charge carriers as a function of temperature and oxygen partial pressure were developed earlier from an analysis of thermogravimetric data. A hopping type mechanism of conduction is assumed. Thus, the mobility of the charge carriers is proportional to the jump probability which is assumed to be influenced by two factors. These are a blocking factor, which renders a fraction of the sites neighboring a charge carrier unavailable for occupancy, and a self‐screening parameter which partially negates the blocking.