Desalination technology has emerged as a critical solution for freshwater scarcity, especially in regions facing significant water stress. This process, which involves extracting salt from seawater to produce potable water, has gained immense importance in the Middle East, where many countries are heavily reliant on it. Notably, Qatar exemplifies this dependency, with desalination accounting for an astonishing 77% of its total freshwater supply and 99% of its drinking water. Despite desalination contributing to only 1% of global freshwater withdrawals, it plays a vital role in the Gulf Cooperation Council nations, including Bahrain, Kuwait, Saudi Arabia, Oman, and the United Arab Emirates, where freshwater sources are scarce due to the absence of permanent rivers and limited natural water reserves.
The Middle East represents a striking dichotomy in the global water landscape, hosting just 6% of the world’s population while operating over 27% of its desalination facilities. Recent studies highlight that out of approximately 17,910 desalination plants worldwide, nearly 4,900 are situated in this region, underscoring its reliance on this technology for municipal water supply, agriculture, and industry. One of the most significant facilities is the Ras Al-Khair water and power plant in Saudi Arabia, which produces over 1 million cubic meters of freshwater daily, sufficient to support millions of residents in major cities like Riyadh. This facility is part of a broader trend, as the average size of desalination plants has increased nearly tenfold over the past 15 years, reflecting a shift toward larger, more efficient operations.
Looking ahead, the demand for desalination is poised for substantial growth. Between 2024 and 2028, the Middle East is projected to expand its desalination capacity by over 40%, with an estimated investment exceeding $25 billion in new facilities. This growth is essential for addressing the increasing challenges posed by climate change, which is exacerbating water scarcity through rising temperatures and altered precipitation patterns. However, this expansion will also lead to a significant rise in electricity consumption, with projections indicating that desalination could account for an additional 190 terawatt-hours of electricity demand globally by 2035, equating to the energy needs of about 60 million households. As the Middle East invests in larger and more efficient desalination technologies, the region’s approach to water management will continue to evolve, underscoring the critical role of desalination in ensuring sustainable access to freshwater resources.
Source: Desalination technology, by the numbers via MIT Technology Review