SAROS is a wave-powered off-grid desalination system

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SAROS is a wave-powered off-grid desalination system

An American startup is looking to turn seawater into drinking water using only the motion of the ocean. EcoH20 Innovations is currently working with the second prototype of its Swell Actuated Reverse Osmosis System (SAROS), a compact, portable and energy independent floating desalination system.

The first prototype of the SAROS wave-powered desalination system
Aerial photo of a SAROS wave-powered desalination system deployed near a pier
Two generations of the SAROS wave-powered desalination system prototype
The SAROS wave-powered desalination system is designed to be portable
SAROS was designed with island communities in mind, where drinking water can be scarce and traditional desalination can be expensive, requiring burning fossil fuels that contribute to rising sea levels threatening many such communities. The relatively simple buoy-based system harnesses the energy of swelling and falling seas to pump sea water through a reverse osmosis system that makes it drinkable and then back to shore for storage via a hose.

"SAROS is different because, by using it, we can cut the cost currently associated with producing fresh water in half," said SAROS' Director of Research & Development Chris Matthews.