2025 has been a good year for FSubsea with delivery of a record-breaking 20 of its innovative Searise Deep subsea pumps in the first ten months of the year. They are employed to lay subsea cables and connect offshore wells in rugged North Sea waters. Meanwhile, Its sister company Flocean is making strides commercializing its subsea desalination system.
“This is a true statement of the quality and competitiveness of the Searise Deep pump range”, according to Knut Oppenhagen, FSubsea’s Sales Manager. One client, a large global subsea engineering and services company, received 10 units this year alone, of a total of 26 subsea pumps received during the past years, reported Alexander Fuglesang, CEO, on October 30.
Some of the company’s versatile subsea products use powerful magnetic couplings while others use mechanical seals, depending upon the application. The magnetic couplings, depicted in the image below, are core enablers in a range of innovative products that FSubsea has developed for full systems of its own design as well as for those of pump OEMs wanting to utilize the seal-less technology, as reported in an earlier article which appeared in Magnetics Magazine in January, “Powerful Magnetic Couplings.” Coastal desalination plants, underwater dredging and offshore oilfield operations are among the diverse applications in ocean waters.
Water giant Xylem joins the effort for subsea desalination
In mid-November, global water solutions provider Xylem came onboard to as a partner to boost Flocean’s venture capital raise to $22.5 million. The proceeds of the Series A round will fund the launch and operation of Flocean One—destined to become the world’s first demonstrator and commercial subsea desalination plant—in 2026 at Mongstad. The funding will also support continued organizational growth and advance large-scale commercial projects across Europe, the Middle East, the Americas, and island nations.
The subsea approach delivers a fundamentally different economic model. By moving desalination systems 400–600 meters below the water, the technology leverages the natural pressure of the ocean to reduce cost and deployment time. Flocean operates under a build-own-operate model, selling water as a service to municipal and industrial clients under long-term, bankable offtake agreements spanning 15-25 years. The company has secured initial project agreements in multiple countries, including collaborations with utilities in the Mediterranean, Red Sea, and Indian Ocean regions.
“Flocean’s subsea desalination technology represents a bold leap forward in how we produce fresh water and address water scarcity — one of the most urgent challenges of our time,” said Snehal Desai, Chief Growth and Innovation Officer at Xylem. “As demand for water accelerates globally, we’re investing in breakthrough technologies that have strong potential to scale. This partnership reflects our commitment to solving water with innovation that empowers our customers and communities to build a more water-secure world.”
Based in Oslo and established in 2013, FSubsea and Flocean are outgrowths of pump dealer and service company Fuglesangs AS, now a fifth-generation Norweigian company. See www.fsubsea.com, www.flocean.com.
