• Overview
  • Related products
  • Case stories
  • Articles
  • Contact us
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) { } else if (isBigColumns) { } else { }
    Understanding the cost drivers of SWRO

    Seawater reverse osmosis (SWRO) is growing worldwide to bridge the gap between increased demand and climate-driven water scarcity. However, compared to other sources such as ground and surface water, fresh water from SWRO is relatively expensive.

  • if (isSmallPicture) { Green deal } else if (isBigColumns) { Green deal } else { Green deal }
    Energy-efficient SWRO should be part of the European Green Deal

    As Europe tackles the dual challenges of climate change and water scarcity, the transition from low-efficiency desalination to high-efficiency seawater reverse osmosis (SWRO) technology should be considered part of the European Green Deal.

  • if (isSmallPicture) { Drought } else if (isBigColumns) { Drought } else { Drought }
    Why the world will need even more desalinated seawater in the future

    The world needs more fresh water than ever before to keep up with its growing population and economic development. At the same time, climate change is exacerbating extreme weather events – and making water scarcity increasingly problematical around the globe.

  • 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.

Contact us

For further information, please contact us.