The effect of distortions in the ideal profile of the solid phase conductivity chi(s)(x) on porous electrode (PE) performance efficiency has been analysed using a one-dimensional model and an overall polarization curve involving both main and side reactions. Although an ideal electrically equally accessible PE is provided only by a hyperbolic profile chi(s)(x) passing through the middle of the electrode (the point chi(s) = chi(L)), it has been shown that a noticeable improvement in performance can be obtained using a rough approximation with any monotonic function providing a decrease in conductivity in the direction from the back current supply to the front plane of the PE, including functions not necessarily passing through the point chi(s) = chi(L) in the middle of the electrode. This permits less rigid requirements for the chi(s)(x) profile reproduction accuracy and simplification of experimental data acquisition.