Ritter XL Solar stands for large-scale, high-performance solar thermal energy. Our team of experienced engineers and physicists has implemented most of the large German solar thermal systems in recent years and has continuously developed the system technology further. We deliver tailor-made solutions for the solar thermal support of heating networks, regardless of whether they are small rural networks, urban districts or classic urban district heating. The system technology from Ritter XL Solar is based on the AquaSolar system, the combination of evacuated tube collectors for maximum performance with water as the heat transfer medium and a sophisticated system control. The AquaSolar system is ecologically consistent and offers the highest yields for many years thanks to almost wear-free operation.