Abstract: Poster describing the Sub-Kilowatt Electric Propulsion (SKEP) project to develop a propulsion system (HET (Hall-Effect Thruster), PPU (Power Processing Unit – solar electric propulsion) and XFS (Xenon Feed System)) for ESPA ( Evolved Expendable Launch Vehicle (EELV) Secondary Payload Adapter)-class spacecraft. Technology Goal: SKEP will develop and qualify a long-life, sub-kilowatt integrated propulsion system based on recent advances in Hall-Effect Thruster (HET) technology that …