The paper discusses SUPER ESP, a new electrostatic precipitator (ESP) concept, enabling high collection efficiencies with considerably smaller collection areas than has previously been possible. The new concept allows a major reduction in ESP size by using an alternating sequence of prechargers and short collector sections. The length of the collection section in each precharger/collector pair (module) dominates the optimization. The size reduction is greater for ESPs operating with high resistivity particulate matter than with low resistivity particulate matter. The relationship in number of modules, collector section size, and overall ESP collection is presented and discussed. Comparisons are given of ESP size for both conventional and SUPER ESP technology operating with either high or low resistivity particulate matter. Because of the size reduction, the cost of the SUPER ESP is projected to be lower than that of a conventional ESP of comparable efficiencY. The paper is based on an ESP model, ESPVI 4.0.