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Drinking water - Desalination solutions - Danfoss

Sustainable desalination with maximum energy efficiency

According to the UN, water scarcity is one of the major challenges facing the world today and tomorrow. The need to find sustainable solutions for new freshwater supplies is urgent; solutions that take the straight road from saline to fresh water at low cost and with minimum impact on climate and nature.

Due to its high energy efficiency and reliability, Sea Water Reverse Osmosis (SWRO) is one of the most sustainable and cost effective solutions for converting sea water to potable fresh water. At the same time, SWRO technology undergoes rapid development to improve energy efficiency and support large-scale freshwater production.

Features and benefits

Extremely low energy consumption

Ultra-low maintenance costs

Simple to operate

Minimal service and long service intervals

Small footprint but effective, compact and light in weight

Reverse Osmosis (SWRO)

Sea Water Reverse Osmosis may hold the key to prevent a global water crisis, but it requires powerful technology to be viable on a global scale.

Our four core technologies work together to make SWRO efficient and environmentally friendly.  

Danfoss takes lead in SWRO innovation

Danfoss is committed to supporting the sustainable desalination industry with energy efficient SWRO solutions. The product offering includes four core technologies, comprising high-pressure pumps, AC drives, energy recovery devices and pressure and fluid control devices. These combine into highly efficient and lasting water purification solutions that return energy savings of up to 65% compared to traditional centrifugal pump systems without energy recovery devices and drives.

By land, by sea - anywhere

At large scale, reverse osmosis plants are capable of providing freshwater to entire cities while compact solutions are ideal for supplying hotels and resorts, ships, and offshore facilities with clean water.

Desalination of salt water - Danfoss

Today’s challenge – Tomorrow’s opportunity

Water is vital for life. Shortage of fresh water has spurred innovation to find efficient and climate-friendly solutions that turn seawater into fresh, clean water.

Reverse osmosis is the leading technology. It is simple, reliable and requires less energy than other desalination techniques.

Desalination system by Danfoss

Creating a sustainable future with seawater

65% savings on your desalination systems with Danfoss high-pressure pumps, Danfoss pressure transmitters, Danfoss drives and Danfoss energy-recovery devices (iSave) compared to desalination plants with centrifugal pumps and without energy-recovery devices and drives.

Acciona modular desalination plant - Danfoss

Acciona and Danfoss create innovative SWRO

Technologically advanced solutions allowed Acciona to create an innovative sea water reverse osmosis (SWRO) modular desalination plant for the Sarlux refinery in Sardinia, Italy, reducing energy consumption compared to traditional solutions.

Related products

Case stories


  • if (isSmallPicture) { Save energy } else if (isBigColumns) { Save energy } else { Save energy }
    How much energy and CO₂ can be saved by retrofitting existing desalination plants?

    Although just one percent of worldwide water consumption currently derives from desalinated seawater, desalination is responsible for an outsized share of water treatment’s global energy usage.

  • if (isSmallPicture) { Desalination } else if (isBigColumns) { Desalination } else { Desalination }
    A brief history of the energy intensity of desalination

    As we’ll see, thermal distillation, though still used today, is just the first generation of technologies adapted and developed to desalinate water. In terms of energy intensity, much has happened since Aristotle walked the shores of ancient Greece.

  • if (isSmallPicture) { Footprint island } else if (isBigColumns) { Footprint island } else { Footprint island }
    The carbon footprint of potable water

    Our blog explores issues related to energy and cost efficiency in seawater reverse osmosis (SWRO). We’re investigating more topics and adding new blogs regularly.

  • if (isSmallPicture) { DST P40M pressure transmitter for marine applications } else if (isBigColumns) { DST P40M pressure transmitter for marine applications } else { DST P40M pressure transmitter for marine applications }
    Corrosion-resistant titanium for high-performance control

    The marine industry has adopted the use of exhaust-gas scrubbers and ballast water treatment systems to meet the International Maritime Organization’s strict environmental legislation. Read more about the corrosive environments of these systems requiring tough, high-performance controls.

  • if (isSmallPicture) { Fresh water fountains with pd pumps danfoss } else if (isBigColumns) { Fresh water fountains with pd pumps danfoss } else { Fresh water fountains with pd pumps danfoss }
    Cost-effective water supplies with pd pumps

    The scarcity of fresh water resources and the need for additional water supplies is critical in many regions of the world and will be increasingly important in the future. The UN has made availability of water and sanitation for all, one of the Global Development Goals.

  • if (isSmallPicture) { Making the case for positive displacement pumps in SWRO - Danfoss } else if (isBigColumns) { Making the case for positive displacement pumps in SWRO - Danfoss } else { Making the case for positive displacement pumps in SWRO - Danfoss }
    Making the case for positive displacement pumps in SWRO

    Large-flow positive displacement pumps are entering the market with potential to bring down energy consumption by 20%

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