Electrical energy is the largest operational expense in electrowinning and directly impacts the cost of copper production. To understand the contribution of cathodes in the power consumption of electrowinning, a two-part methodology is proposed measuring the cathode conductivity followed by measuring the specific energy consumption of the cathode. The conductivity of the cathodes was measured by a type of 4-point probe conductivity methodology. The conductivity results will be presented via a conductivity map grid produced from grid measurements. Correlation of measured cathode conductivity to electrowinning performance will be evaluated against the specific energy of plated copper. The specific energy of electrowon copper was evaluated under constant current conditions by cathode to (1) understand geometric and current density effects and (2) by constant surface area to minimize current density effects. In this manner, the performance of copper cathodes regarding energy consumption may be compared across copper electrowinning cathodes. It is anticipated that this methodology and findings will assist the practitioner in evaluating key cost components in their electrowinning operations.