Floating Photovoltaics (FPV) is a new technique with a documented dual benefit just in arid regions: While evaporative losses from open water surfaces can be reduced by at least 50%, the produced green energy can be used for agricultural projects, i.e. irrigation, groundwater pumping or desalination. A recent study has shown this for the Aswan High Dam Reservoir (Ilgen et al., 2024). This study aims to apply a set of models (e.g. ZENIT, General Lake Model, etc.) to showcase this potential for the case of Jordan. Thereby, different FPV-layouts and spatial coverages will be compared. We expect proposals for sustainable development projects in irrigated agriculture just aside the ten dams of Jordan which loose considerable water volumes by evaporation. The effect of reduced solar radiation on water quality (e.g. oxygen content) and aquatic ecosystems (e.g. algae growth) will also be evaluated.