Abstract
The power conditioning and control subtask of the EC funded Concerted Action comprises the systems analysis of the components inverter, converter and battery charger as well as the control and power management strategy. The on-going project is described with emphasis placed on inverter efficiency. It is described in terms of a simple analytical form in order to give the practitioner numerical values at hand, which characterize the device also at the regime of partial load, so important to photovoltaic applications. The data of DC/DC converters has been collected as well. Work has begun to describe this device quantitatively, too. Failure modes and possible solutions to the problems are being discussed. An extensive program has been started to scrutinize the present Maximum Power Point Tracking Systems and their efficiency as well as power and load management systems to be implemented using the hybrid plants Terschelling and Kythnos as case studies.