For years the issue of the lack of drinking water remained in the background of public debate, almost as if it were a distant problem. Yet, the estimates are clear: without radical change, by 2030 billions of people will continue to lack access to an essential resource. In a hyperconnected world, where technology governs everyday life, this paradox sounds increasingly out of tune. It is precisely in this scenario that an invention takes shape 600 meters under the sea, capable of overturning the rules of desalination and offering a concrete response to the global water crisis.
Capturing attention is the Norwegian startup Flocean, which from 2026 aims to produce drinking water directly from the ocean, installing desalination units between 300 and 600 meters deep, off the coast of Norway. A project so innovative that it deserved recognition from Time Magazine, which included it among the best inventions of the year.
Harness the natural pressure of the ocean to produce drinking water
When we talk about desalination, the collective imagination immediately turns to enormous coastal plants, noisy, visible and above all energy-intensive. Flocean instead chooses an opposite path: not to force the sea, but to use what it naturally offers. At hundreds of meters deep, water pressure is already sufficient to push seawater through advanced filtration membranes, largely eliminating the need for complex pumps and machinery.
This approach allows for a reduction in energy consumption estimated between 30 and 50%, a fact which alone explains why the project is considered a possible turning point. Less energy means lower costs, but also fewer emissions and greater long-term sustainability, an increasingly central aspect when it comes to water-related infrastructure.
Cleaner water right from the start thanks to the depth
Another key element of this invention 600 meters under the sea is the quality of the water taken. At those depths sunlight almost no longer reaches, and this naturally limits the presence of microorganisms, bacteria and chemical contaminants. The water is therefore intrinsically purer, simplifying the entire treatment process.
This detail, far from marginal, allows us to reduce the use of chemical substances, making desalination not only more efficient, but also safer and more respectful of marine ecosystems. It is a high-tech logic that comes alongside other alternative solutions, simpler but equally ingenious, demonstrating that the water challenge requires a range of responses, not just one miraculous technology.
From numbers to reality
Before talking about a planetary revolution, Flocean has already put concrete data on the table. The first operational module, called Flocean Oneis designed to produce up to 1,000 cubic meters of drinking water per day. Thanks to a modular system, the capacity can be progressively expanded up to 50,000 cubic meters per day, adapting to the needs of cities, industries and agricultural areas.
Each single module is potentially capable of meeting the water needs of approximately 37,500 people per day, a change of scale that makes this technology particularly interesting for areas affected by chronic water stress. The installation takes place far from the coasts, with zero visual impact and minimal interference on marine ecosystems, an advantage often overlooked in traditional systems.
According to estimates and constant reminders from the World Health Organization, without innovative solutions the gap in access to drinking water will continue to widen. Moving desalination under the sea could prove to be a choice as pragmatic as it is audacious, capable of rewriting the rules of the sector.
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