The High Power PCDU has been originally developed for the X-band Synthetic Aperture Radar Satellite, Terrasar-X. Based on a modular concept that has been already applied by Airbus Defence and Space on several former programs, it is designed to be easily scaled and adapted to di erent Solar Array power ranges and distribution con gurations with a minimum non recurring cost. For applications in LEO orbit the Power Control and Distribution Unit (PCDU) controls the power flow from the solar generator to the battery and distributes power, on command from the onboard computer, to the instruments, the heaters and the propulsion system. For applications in LEO orbit the Power Control and Distribution Unit (PCDU) controls the power flow from the solar generator to the battery and distributes power, on command from the onboard computer, to the instruments, the heaters and the propulsion system.