1,000–1,200 mm/year · ref. Météo-France
Occitanie & PACA: every millimetre of evaporation counts
In Occitanie, hill reservoirs and irrigation basins lose up to 1,100 mm of water per year before harvest. Météo-France and Water Agencies document rising resource tension — modular floating covers are a measurable lever for environmental filings and public utility.
Local hydric context
Languedoc, Roussillon and Pyrenean valleys: irrigated agriculture, municipal reserves and mega-basin debate. Free-surface evaporation can reach 1,200 mm/year on basins exposed to Mediterranean wind and sun.
Orders of magnitude
On a 5,000 m² basin in Occitanie, 1,100 mm/year means roughly 5,500 m³ evaporated. With Hexprotect AQUA cover (88% conservative, up to 96%), over 4,800 m³ can be preserved yearly with zero energy use.
Technical solution
UV-stabilised HDPE modules in aerodynamic hexagonal geometry: pour-in deployment, no load-bearing structure. Measurable evaporation cut, photosynthesis blocked (algae, cyanobacteria) and solid technical argument for authorities and public consultation.
Indicative estimate — on-site audit recommended. See Hydropreserve simulator Methodology.