By Dhiladhila Magazine · Issue 11
The belt can double its uranium output only if it can find the water, and in one of Africa's driest regions that is the binding constraint.
Beneath the price surge and the bullish forecasts sits a physical limit the market cannot lift: water. The Erongo coast, where Namibia’s uranium is dug, is among the most arid stretches on the continent, and every new tonne of ore the developers plan to process needs litres the region does not naturally have.
The scale of the squeeze is already documented. Total supply along the coast is barely 30 million cubic metres a year and effectively maxed out, and the Chamber of Mines has warned of a shortfall of around 500 cubic metres an hour as industry and towns both grow. That warning framed the December 2025 move to build a second desalination plant for the mines.
The belt has run out of easy water
Erongo has no rivers to speak of and an aquifer that cannot carry a doubling of mining demand. Growth in uranium output therefore does not turn first on price or geology but on whether new water can be manufactured, which in this region means taking it from the sea and pushing it through membranes at cost.
That reorders the usual priority list. A developer can raise capital and build a plant, but a mine that cannot secure a water allocation cannot run it, which is why supply agreements now sit alongside offtake and finance as gating conditions on any expansion.
On this coast the scarcest input is not capital or ore but fresh water.
Desalination is doing the irrigation
The gap is being closed at the shoreline. Orano’s Erongo desalination plant, the largest reverse-osmosis facility in Southern Africa, produced a record 17.59 million cubic metres in 2025, up 14 per cent on the year, supplying mines and towns alike. A second plant, a joint venture between the state utility NamWater and the CGN-owned Swakop Uranium, is planned to add about 20 million cubic metres a year.
The new plant, reported at around N$3 billion and majority-held by the miner, has been talked about since 1998 and is now moving, though construction timing has slipped toward the later part of the decade. Its main customer is Husab, the largest single water user in the region after the capital.
The belt is not fed by rain or river but by plants that make water from the sea.
Who sits at the back of the water queue
A region that must desalinate to mine has little spare for anything thirstier. Irrigated agriculture, always marginal in this climate, competes for the same expensive litres as the towns and the mines, and when a shortfall is measured in hundreds of cubic metres an hour, the lowest-value use is the first to be rationed.
That is the food-systems tension the uranium boom sharpens. Every cubic metre committed to a heap-leach pad is one not available to a farm, a settlement or a food enterprise, so the sustainability question is not only whether mining can get its water but what the region gives up to supply it.
The saving grace is that desalination expands the total pool rather than only redividing it. A new plant that serves mines, towns and, in principle, agriculture can ease the competition instead of merely arbitrating it, but only if the extra capacity is priced and allocated so that the lowest-paying users are not permanently crowded out by the industry that funded the plant.
Where water must be bought from the sea, the cheapest use loses first.
The sustainability read
For the region the durable measure is not tonnes of uranium but whether the water base can carry the expansion without draining what towns and farms depend on. Manufactured water makes doubling output physically possible; it does not make it free, and the energy and cost of desalination travel with every extra pound.
The risk is that mining, able to pay for desalinated water, quietly sets the price of water for everyone, and that a food-producing hinterland is priced out of its own coast.
Uranium can buy its water; the question is what that pricing does to everyone else’s.
For anyone in agribusiness, water management or conservation along the coast, the uranium surge is really a water story: the metal scales only as fast as desalination can be built and shared. The decision facing regulators is whether new capacity is allocated so that the belt’s farms and towns keep their place in the queue, or cede it to the mines that can pay most.
Sources: Reuters; Chinese uranium miner to help build second desalination plant (Mining Weekly); Swakop Uranium, NamWater enter desalination JV (Energy Intelligence)
