The D-Dome from K2 Systems is a proven PV module mounting solution for flat roofs. It has been further developed for use on onshore water surfaces such as freshwater ponds and lakes. Air-filled floaters made of HDPE are used as floating elements. The modular design allows a flexible extension of the system. An assembly of 280 modules was considered. In the scope of this development project this concept was dynamically configured for a chosen reference location in the Netherlands.