Germany has the potential to install photovoltaic systems on bodies of water with a maximum output of at least between 1.8 gigawatts (with south-facing modules) and 2.5 gigawatts (with east-west orientation). This potential is largely untapped: Only 21 megawatts (i.e. 0.021 gigawatts) of floating solar systems – so-called floating PV – are currently installed, with a further 62 megawatts under construction or planned. This is the result of a recent analysis by the Fraunhofer Institute for Solar Energy Systems ISE and RWE.