This thesis focuses on the design, manufacture, and testing of discharge electrodes made from composites for use in electrostatic precipitators (ESP). Standard industry ESP’s use carbon steel, or stainless steel as the base material for constructing discharge electrodes. The electrodes need to be conductive and resist corrosive environments. It is proposed that a conductive polymer matrix composite material can be used in place of the steel to achieve both the necessary conductivity performance, and withstand the corrosive environments in the ESP.