With focus on high-value-added applications (Food, Pharma, Cosmetics), this project aims at establishing resource-efficient reactor technology for the cultivation of microalgae. Photobioreactors, in current close-system design, are not fully optimized with regard to energy usage. Several other aspects, such as light quality and irradiation schedule, need to be considered. A new, patented illumination technology, is now awaiting implementation in microalgae farming practice and industry-coupled, hybrid cultivation facilities. The a set of functional prototypes up to pilot scale are to be developed in course of this project.