January 29, 2020

NEOM Adopts Pioneering Solar Dome Technology for Sustainable Desalination Project

  • "Smart” approach to desalination harnesses solar power for water extraction, significantly lowering production costs and reducing brine discharge 
  • First of its kind technology is 100% carbon neutral and will shape the future of water desalination in NEOM, Saudi Arabia and the world
  • Pilot project highlights NEOM’s role as an accelerator of human progress and its fresh approach to environmental conservation

NEOM, Saudi Arabia: NEOM announced on Wednesday that it will adopt pioneering solar technology to produce low cost, environmentally friendly water, strengthening NEOM’s reputation as an emerging hub for innovation and conservation.

The company has signed an agreement with U.K.-based Solar Water Plc. to build the first ever “solar dome” desalination plants in NEOM, located in northwest Saudi Arabia. The pilot project promises to revolutionize the water desalination process, helping solve one of the world’s most pressing problems – access to fresh water.

Work on the first “solar dome” will begin in February and is expected to be completed by the end of 2020.

At an estimated $0.34/m3, the cost of producing water via “solar dome” technology will be significantly lower than desalination plants using reverse osmosis methods. The technology will also significantly reduce the impact on the environment by producing more concentrated brine, a potentially harmful byproduct of the water extraction process.

Commenting on the project, H.E. Abdulrahman Al-Fadli, Saudi Arabia’s Minister of Environment, Water and Agriculture, said: “NEOM’s adoption of this pilot supports Saudi Arabia’s sustainability goals, as outlined in the country’s National Water Strategy 2030, and is fully aligned with the sustainable development goals set out by the United Nations.” 

Nadhmi Al-Nasr, CEO of NEOM, added: “Easy access to abundant seawater and fully renewable energy resources means NEOM is perfectly placed to produce low cost, sustainable fresh water through solar desalination. This type of technology is a powerful reminder of our commitment to supporting innovation, championing environmental conservation and delivering exceptional livability. Working together with the Ministry of Environment, Water and Agriculture we can expand the implementation of this technology beyond NEOM.”

Solar Water’s ground-breaking approach, developed at the U.K.’s Cranfield University, represents the first use, on a large scale, of Concentrating Solar Power (CSP) technology in seawater desalination. The process sees seawater pumped into a hydrological “solar dome” made from glass and steel, before it is superheated, evaporated and eventually precipitated as fresh water.

The “solar dome” desalination process, which can also operate at night due to the stored solar energy generated throughout the day, will reduce the total amount of brine that is created during the water extraction process. Typically, the high salt concentration in brine makes it more difficult and expensive to process. The solar dome process helps prevent any damage to marine life as no brine is discharged into the sea.

With over one billion people around the world lacking access to clean water every day, NEOM’s solar desalination project will serve as a test case for other water scarce countries that are struggling to generate environmentally safe and sustainable sources of fresh water.

Gavin van Tonder, Head of Water at NEOM, said: “We’re really excited by the prospect of bringing cutting edge water technology and fresh industry thinking to NEOM. By using solar dome desalination techniques, we can build a highly effective, efficient water utility that is both future oriented and environmentally responsible.”

David Reavley, CEO of Solar Water Plc, commented: “Currently, thousands of desalination plants around the world are heavily reliant on burning fossil fuels to extract water, poisoning our oceans in the process with excess brine. Our game changing desalination technology is 100% carbon neutral and entirely sustainable. In NEOM we have found a partner who has a strong vision of what a New Future looks like in harmony with nature.”

NEOM, the flagship project of Saudi Arabia’s post-oil diversification plan, is being built on a 26,500 km2 area in northwestern Saudi Arabia. It offers unique investment opportunities in economic sectors and real-estate development.