Turning Peru’s Fog into Usable Water



desertGerman-based NGO Alimon has developed fog collectors in Peru to help communities in arid climates capture much needed water. They do so by erecting specially made screens on fog prone hill-tops that absorb the moisture into water droplets that are then funneled into water tanks. This is a common technique among certain plants. Project “Green Desert” has been implemented in communities across Peru’s desert coastline. The fog collectors cost around $800 USD each. The investment seems worthwhile when considering that in one community four fog collectors captured 100,000 liters of water in less than 8 weeks ($.03 USD per liter).

This innovation introduces fog as a natural resource to arid communities. With the right materials and an environmental scan it does not appear to be a very difficult project to implement. NGOs could potentially begin developing kits to establish in at-need communities with a project manager. In communities without access to water, these devices would help to bring down household and agricultural costs or even serve as an income-generating project.

Its replication is extremely weather dependent; it is only viable in certain regions. Alimon has not discussed what maintenance costs are involved, only that communities are responsible for pooling funds for related activities. Thinking hypothetically, and if this technology was scaled up, there may be potential detrimental impacts on communities further inland or flora not receiving the redirected water.

Developed by: Alimon

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Eric Pires

Eric Pires

Eric Pires is a writer and co-founder of Innovate Development. He has worked in various sectors in Latin America and is currently working in Antigua, Guatemala.

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