Flocean
Subsea desalination pods that produce freshwater from deep seawater on the ocean floor.
Photo credit: Flocean
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Flocean develops subsea desalination systems. Its product, Flocean Deep, turns seawater into freshwater on the ocean floor. The company sells the drinking water it produces to large-scale users.
Modular pods sit at depths of 400 to 600 meters, within about 10 kilometers of shore. Natural hydrostatic pressure at that depth helps drive reverse osmosis. This reduces the energy needed compared with conventional onshore plants. Deep water holds little biomass, so less pre-treatment is required. The company reports zero chemical discharge.
Flocean serves municipalities, island communities, industry, and agriculture in water-stressed coastal regions. It demerged in 2024 from FSubsea, a fifth-generation Norwegian subsea pumping business. The company reports producing its first drinkable water from a commercial-scale subsea plant. Flocean was named to TIME's Best Inventions of 2025.
Key benefits
Lower energy use
Deep-sea hydrostatic pressure does part of the reverse osmosis work.
Smaller coastal footprint
The company reports 95% less coastal land use than onshore plants.
Gentler on marine life
Deep intake reduces impingement and entrainment, with zero chemical discharge reported.
Flocean moves desalination from the coastline to the deep seabed. Deep-sea pressure does part of the work that onshore pumps normally do. This lowers energy use. Clean, low-biomass deep water reduces the need for pre-treatment chemicals and coastal infrastructure. The aim is freshwater for people, farmers, and industry with a smaller footprint on land and marine ecosystems.
Company-reported 95% reduction in coastal land use versus conventional desalination; Company-reported 30-50% lower energy consumption; Company-reported 60% reduction in pre-treatment infrastructure; Company-reported zero chemical discharge; Pods installed at 400-600 m depth within 10 km of shore; Designed for 90+ water-stressed markets with deep shorelines; Named to TIME Best Inventions 2025
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Frequently asked questions
- What does Flocean do?
- Flocean develops subsea desalination systems. Its product, Flocean Deep, turns seawater into freshwater on the ocean floor. The company sells the drinking water it produces to large-scale users. Modular pods sit at depths of 400 to 600 meters, within about 10 kilometers of shore. Natural hydrostatic pressure at that depth helps drive reverse osmosis. This reduces the energy needed compared wit…
- Where is Flocean based?
- Flocean is based in Norway.
- What sector does Flocean operate in?
- Flocean operates in the Environment & Conservation sector.
- Who has invested in Flocean?
- Published funders on Causeartist include Burnt Island Ventures.
At a glance
Locations
- Founded
- 2024
- Investors
- 1
