Neom to build desal plant with ‘solar dome’ technology
2020.01.30 From: helioscsp
Saudi Arabia’s futuristic $500-billion new city Neom has signed an agreement with the UK-based Solar Water Limited for the construction of the first desalination plant with ‘Solar Dome’ technology in the city.
The pilot project promises to revolutionise the water desalination process, helping solve one of the world’s most pressing problems – access to fresh water, said a statement from Neom.
This comes as part of Neom’s plans to deploy pioneering solar technology to produce clean, low-cost, environmentally friendly fresh water.
Work on the first “solar dome” will begin in February and is expected to be completed by the end of 2020, said the statement.
At an estimated $0.34/cu m, the cost of producing water via “solar dome” technology will be significantly lower than desalination plants using reverse osmosis methods, it stated.
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, it added.
Saudi Minister of Environment, Water and Agriculture Abdulrahman Al Fadli 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.»
Commenting on the project, CEO Nadhmi Al Nasr said 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 we can expand the implementation of this technology beyond Neom,» he added.
Solar Water’s ground-breaking approach, developed at the UK’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, explained Al Nasr.
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, said the top official.
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, he added.
Gavin van Tonder, head of water at Neom, said: «We are 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.»
Solar Water CEO David Reavley said: «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 per cent 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,» he added.
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