The French company Ciel & Terre International was rewarded with the Intersolar Award 2017 in the Photovoltaics category for its fully innovative Hydrelio® technology. The system enables to generate carbon-free energy while optimising space and controlling the evolution of water ponds thanks to the floating solar panels. Technical innovation, benefit for industry, environment and society, as well as economic viability are factors which have all been examined to award the prize.