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OSMOSUN Adopted by Island of Santiago in Cape Verde to Combat Drought with Solar-Powered Irrigation

Implementation Date

March 13, 2021

By

Island of Santiago

City

Island of Santiago

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Description

The Minister of Agriculture and the Environment and the French Ambassador of Cape Verde have inaugurated the OSMOSUN desalination installation which provides water for agricultural irrigation on the island of Santiago. The 40m3 of water produced each day by the OSMOSUN Solution represents a milestone on the island as it allows the resumption of activities made impossible by the drought in the archipelago of the past several years.

Impact & Result

The unit produces 50m3 of clean water per day powered only by solar energy and without batteries. The effects were immediate with a first harvest of tomatoes, carrots, pumpkins, cucumbers and watermelons.

Solution Spotlight

Relying on sunlight as a power source, the desalination unit is sustainable and fully independent. To produce drinking water, pressurised seawater is taken through membranes, where the reverse osmosis process takes place. Its intelligent system is specifically engineered to adapt its pump and the pace of the motor in accordance with the amount of sunlight available, which can vary widely and suddenly. All parameters are continuously and instantly optimised to ensure the best energy performance and guarantee the maximum lifetime of the installation and of its delicate membranes.

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