Who builds what across the evaporation-reduction field. This site is sponsored by AWTT, whose products are featured below and clearly marked as such. Beneath the featured block, the full landscape is alphabetical and vendor-neutral — inclusion is descriptive, not an endorsement, and competitors are covered on equal terms. Verified performance figures live on the Methods and Evidence pages, each attributed to its source. New entries are surfaced automatically; those marked “pending review” are awaiting an editorial check.
Advanced Water Treatment Technologies (AWTT) · USA
Hollow HDPE spheres (100 mm) that self-arrange for ~91% surface coverage with an insulating air pocket — an industrial evolution of the basic shade ball, in a standard (35 MPH) and a factory water-ballasted AQUA (75 MPH) variant. Evaporation reduction up to 90% (AWTT).
Vendor site ↗Advanced Water Treatment Technologies (AWTT) · USA
Pre-loaded interlocking hexagonal HDPE tiles that self-arrange across a surface and follow changing water levels. Full attributed specifications are on the modular-floating-covers method page.
Vendor site ↗Advanced Water Treatment Technologies (AWTT) · USA
Hybrid rhombus-hexagonal load-bearing panels for high-wind, high-load industrial sites. Specifications and field evidence appear on the method and evidence pages, attributed to the manufacturer.
Vendor site ↗Advanced Water Treatment Technologies (AWTT) · USA
Hollow HDPE spheres (100 mm) that self-arrange for ~91% surface coverage with an insulating air pocket — an industrial evolution of the basic shade ball, in a standard (35 MPH) and a factory water-ballasted AQUA (75 MPH) variant. Evaporation reduction up to 90% (AWTT).
Vendor site ↗Connectum
A patented modular floating solar platform designed for quick installation that can reduce water evaporation by 30% to 60% according to the vendor.
Vendor site ↗Euro-Matic Ltd · United Kingdom
Hollow HDPE spheres deployed as a floating layer to reduce evaporation, light and odour on tanks, lagoons and reservoirs.
Plastic Fusion Fabricators · USA
Custom-fabricated and installed floating covers in HDPE, LLDPE, RPP and XR-5 for potable water, process tanks, lagoons and containment.
Campbell Scientific · USA
Open-path gas analysers and sonic anemometers that compute evapotranspiration fluxes over land and water; instrumentation for measuring loss, not a suppression method.
Global Environmental Solutions, LLC · USA
Engineered hollow floating spheres forming a self-adjusting modular layer aimed at evaporation, water quality, emissions and wildlife deterrence; a recently introduced product line.
Climate Innovation Window
A system of 0.3 m² hexagonal floating modules designed to reduce direct evaporation and prevent sunlight penetration to limit algae growth. The modules are designed to adapt to changing water levels and can withstand wind speeds up to 90 km/h.
Vendor site ↗Netpro (Netpro Group) · Australia
A cable-suspended knitted high-density shade-cloth canopy held low over a dam to cut solar load and wind-driven loss; the supplier reports evaporation savings in the region of 70% on covered storages.
Aquatan · South Africa
Reinforced flexible polypropylene (RFPP) floating geomembrane covers in potable and industrial grades; the firm reports more than 80 floating-cover installations across earth dams, concrete reservoirs and tanks.
Environmental Fabrics Inc. (EFI) · USA
Custom-engineered floating covers in UV-stabilised geosynthetics for municipal, industrial and agricultural water, with typical service lives of 15–25 years.
Solmax · Canada (global)
Geosynthetic floating-cover systems within a water-management product line for reservoirs and containment ponds.
E Squared Geomembranes · USA
Custom HDPE floating covers for potable-water reservoirs and earthen basins, giving continuous surface coverage to limit evaporation, algae and contamination.
Sungrow · China (global)
Large-scale floating-photovoltaic platforms and inverters used on reservoirs and ponds, shading part of the water surface alongside power generation.
Ocean Sun AS · Norway
Floating PV that mounts modules on a water-cooled flexible membrane covering the surface; proven from reservoirs to coastal waters, partially suppressing evaporation under the array.
D3Energy · USA
Developer and installer of floating-solar projects on US water bodies, where surface coverage delivers some evaporation and water-quality co-benefits.
Profloating B.V. · Netherlands
Floating-solar mounting systems for inland water surfaces, where the panel coverage partially shades the water and reduces evaporation as a secondary effect of generation.
BayWa r.e. · Germany (global)
Large floating-photovoltaic platforms deployed on reservoirs and quarry lakes; the developer lists reduced surface evaporation as a co-benefit of the coverage alongside power generation.
Ciel & Terre
A floating solar technology using a honeycomb design and elevated PV modules to enhance cooling and energy yield.
Vendor site ↗Genap B.V. · Netherlands
Reinforced-geomembrane floating cover with venting floats to release accumulated gas, used to limit evaporation, algae and wave action on water and slurry storages.
Hexa-Cover A/S · Denmark
Floating hexagonal plastic elements that pack across a surface to limit evaporation, light and odour on industrial basins, lagoons and reservoirs.
Advanced Water Treatment Technologies (AWTT) · USA
Pre-loaded interlocking hexagonal HDPE tiles that self-arrange across a surface and follow changing water levels. Full attributed specifications are on the modular-floating-covers method page.
Vendor site ↗Onset Computer Corporation · USA
Weather stations and data loggers that derive reference evapotranspiration via the FAO-56 Penman-Monteith equation; they quantify atmospheric demand to inform water management.
Ciel & Terre International · France (global)
Patented floating-photovoltaic platform widely deployed on reservoirs; generates power while partially shading the surface, with evaporation reduction a secondary effect of coverage.
Isigenere · Spain
Modular floating-PV floats for reservoirs and irrigation ponds; the manufacturer attributes a large reduction in evaporation to the shading the array provides over the water surface.
LI-COR Biosciences · USA
A self-contained eddy-covariance sensor that measures evapotranspiration directly; it quantifies water loss rather than reducing it, supporting water-budget and irrigation decisions.
Industrial & Environmental Concepts, Inc. (IEC) · USA
Insulated geomembrane casings connected into a modular floating cover for reservoirs, ponds, tanks and lagoons; individual sections lift out for access and the cover rises and falls with the water level.
OpenET (etdata.org consortium) · USA
A satellite-based, field-scale evapotranspiration data service for the western United States; an ensemble of remote-sensing models quantifies water consumption rather than reducing it.
Layfield Group · Canada / USA
Custom continuous floating covers and geomembranes for potable-water and process reservoirs, giving full surface coverage with gas-venting and rainwater management.
Advanced Water Treatment Technologies (AWTT) · USA
Hybrid rhombus-hexagonal load-bearing panels for high-wind, high-load industrial sites. Specifications and field evidence appear on the method and evidence pages, attributed to the manufacturer.
Vendor site ↗OTT HydroMet · Germany / USA
An automated Class-A-style evaporation pan with water-level and weather instrumentation that logs open-water evaporation; a measurement station rather than a reduction technology.
Aquatain Products · Australia
A polymer/silicone liquid that spreads into a thin gas-impermeable surface film to reduce evaporation; a surface-film product rather than a true molecular monolayer.
Flexible Solutions International · Canada / USA
A cetyl/stearyl-alcohol powder that forms a self-healing monolayer on open water; independent trials report modest, weather-sensitive evaporation savings.
ResEnTech USA
A patented chemical solution designed for oilfield water storage ponds that creates a monomolecular layer to reduce evaporation by 20-34%.
Vendor site ↗Comparing the method classes themselves (effectiveness, cost, access, durability)? See the Methods comparison. Tracking the literature? See the Research Library.
