Abstract
Floating solar (FPV) energy production represents an innovative technology with the potential to increase renewable power production, meeting both rising consumption and the need to replace fossil-based energy. The HydroSun Competence project, led by the Institute for Energy Technology (IFE) and funded by the Norwegian Research Council, aims to support the rapid, cost-efficient, and sustainable development of renewable energy. This report, a deliverable of the work package led by NIVA, addresses the environmental and societal impacts of FPV on hydropower or multi-purpose reservoirs. Using the Magat reservoir in the Philippines as a case study, it investigates the effects of different FPV scenarios on environmental variables such as evaporation, water temperature, oxygen levels, and greenhouse gas emissions, as well as economic and socio-cultural factors. The study compares baseline, low cover, and high cover FPV scenarios, suggesting measures to enhance benefits and mitigate adverse impacts. The findings emphasize the importance of context-specific assessments and provide recommendations for optimizing FPV design and deployment to optimize benefits.