News Desk
Engineers in the Maldives have retrieved deep-sea water samples from 500 metres below the ocean surface as part of a feasibility study for an ambitious subsea desalination plant aimed at transforming the low-lying archipelago’s freshwater supply.
A technical team from the Norwegian marine engineering firm Ocean-Flosian visited the country this week to perform initial testing alongside officials from the Male’ Water and Sewerage Company (MWSC), the state utility provider.
According to MWSC, the samples collected at depth represent the purest seawater ever surveyed by the utility’s researchers, providing an ideal baseline for extensive laboratory testing to evaluate its potential as a feed-water source.
The utility first announced its plan to construct a subsea desalination facility earlier this year, partnering with Norwegian offshore specialists under a formal agreement to conduct feasibility, technical, and environmental impact assessments. Physical construction and implementation are slated to begin by mid-2027.
Desalination in the Maldives has traditionally relied on conventional reverse-osmosis systems located on land, which consume substantial amounts of electricity and release concentrated brine into shallow coastal waters, posing risks to fragile coral ecosystems.
By drawing water from 500 metres beneath the surface, where temperatures are significantly lower and biological contaminants are sparse, the proposed subsea system expects to lower the energy required for filtration while improving operating efficiency. Furthermore, discharging brine at greater depths reduces thermal and saline stress on shallow-water marine life.
If proven viable, the project could offer a template for other low-lying island nations seeking sustainable, climate-resilient methods to secure drinking water amid rising sea levels and shifting rainfall patterns.
