
O Primeiro Sistema de Dessalinização Submarina Comercial do Mundo
O Primeiro Sistema de Dessalinização Submarina Comercial do Mundo
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World’s First Subsea Commercial Desalination Plant Can Cut Energy Use in Half

Introduction to the Global Water Crisis
As the world grapples with an escalating water crisis, innovative solutions are more essential than ever. With over 2 billion people currently living in water-stressed areas, the urgency for sustainable water solutions has never been more critical. Factors such as climate change, population growth, and inadequate infrastructure are straining freshwater resources. Desalination, the process of removing salt from seawater, has emerged as a pivotal solution to provide potable water for various regions facing scarcity.
The importance of desalination technologies cannot be overstated. Recent advancements aim not only to improve efficiency but also to mitigate the environmental impact traditionally associated with desalination methods.
Introducing the World’s First Subsea Commercial Desalination System
A new era in water desalination is upon us with the development of Flocean, a Norwegian startup that is launching the world’s first subsea commercial desalination plant. This groundbreaking system will operate at depths between 400 to 600 meters below the ocean’s surface and is scheduled to begin operations in 2026. Flocean promises to deliver environmentally friendly water solutions while significantly reducing energy consumption and greenhouse gas emissions.

Key Operational Advantages of the Subsea System
Flocean’s innovative technology harnesses natural hydrostatic pressure, a key element in the reverse osmosis process. This approach enables a 40-50% reduction in energy consumption compared to traditional land-based desalination plants. Here are some of the system’s standout operational features:
- Production Capacity: Each module can supply potable water for approximately 37,500 people daily.
- Reduced Land Use: The subsea method minimizes coastal land requirements by 95%.
- Decreased Pre-Treatment Infrastructure: The need for pre-treatment facilities is reduced by 60% thanks to lower biomass levels at ocean depths.
Environmental Benefits of Subsea Desalination
The subsea desalination system not only enhances efficiency but also offers substantial environmental benefits:
- Brine Discharge Strategy: The unique discharge system ensures that concentrated brine is diluted to ambient seawater salinity at 30 meters from the discharge point, minimizing ecological disturbances.
- Zero Chemical Discharge: Unlike traditional methods, the system does not produce harmful chemical byproducts, marking a significant environmental advancement.
- Microplastic Detection: This innovative system can identify and remove microplastics in real-time, contributing to ocean preservation.
| Characteristics | Subsea Desalination System | Traditional Plants |
|---|---|---|
| Energy Consumption | 40-50% lower | Non-applicable |
| Water Production | 37,500 people/day | Variable |
| Land Use | 95% lower | Non-applicable |
| Emissions | 48-58% lower | Non-applicable |
Commercial Implementation and Future Projects
The inaugural project, named Flocean One, will be installed off the coast of Norway. The startup is also working on scalable desalination solutions for various regions, including:
- Mediterranean Islands: Projects capable of producing up to 15,000 m³/day.
- Maldives: Industrial operations designed to produce 50,000 m³/day.
- Coastal Continental Areas: Plug-in solutions capable of supplying 30,000 m³/day.
With these innovations, Flocean aims to serve over 90 water-scarce markets with access to deep coasts, ultimately promoting sustainable water security on a global scale.
Conclusion
Flocean’s subsea desalination system represents a groundbreaking advancement in desalination technology and serves as a crucial response to global water scarcity challenges. By utilizing the natural pressure of the ocean, Flocean offers a sustainable solution with the potential to revolutionize access to clean drinking water worldwide. As the company prepares to launch its commercial plants in 2026, it is poised to increase the water supply while significantly reducing the ecological footprint typically associated with desalination processes.
For additional insights, consult articles from New Scientist and Flocean.
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