But as they are fixed panels, they produce energy for fewer hours than a panel on the ground, which has the possibility of following the sunlight. Floating systems and moorings are also expensive compared to those installed on land.
From the environmental point of view, these installations appear to have certain benefits by preventing the evaporation of water and also the proliferation of algae and mosses.
Floating solar plants in the Iberian Peninsula
The floating photovoltaic plants currently installed in Spain are located in reservoirs or artificial rafts and most are intended for self-consumption to power irrigation systems in the agricultural sector.
Outside Spain, the capacity of floating photovoltaic plants has been increasing over the last ten years. According to the World Bank, in 2018 the cumulative installed capacity of floating solar energy was approaching 1.1 GWp, the same milestone that onshore photovoltaics reached in 2000.
Currently, most of the world's installed capacity is in Asia, which is leading in the installation of floating solar power. However, as Miguel González stated, "although there are large-scale installations in China, Korea and Japan, new plants have recently been created in France, Switzerland and, now also in Portugal, where we have won the first auction for a floating solar installation in reservoirs in the Iberian Peninsula".