FogHarvesting Nets are passive water collection systems that use finely woven mesh to condense water droplets from fog. As wind carries fog through the mesh, water droplets form, accumulate, and drip into collection troughs, where they are stored for later use.
This low-cost, low-maintenance technology is especially suitable for arid and coastal highland regions where conventional water sources are scarce but fog is frequent. The collected water can be used for drinking (after treatment), irrigation, and livestock, helping communities address chronic water insecurity.
The nets are often installed on hillsides or ridgelines to maximize exposure to moving fog. Their simplicity makes them highly replicable and adaptable, with installations ranging from individual household units to large-scale community systems. They are typically supported by NGOs and environmental initiatives aiming to enhance water access in vulnerable ecosystems.