By Dhiladhila Magazine · Issue 01

In the arid Erongo, water is the binding constraint on both a uranium mine and a vegetable garden.

The uranium that helped carry Namibia’s mining year is dug in one of the driest places on earth, and that fact governs everything beneath the earnings. In the Erongo region a uranium mine, a coastal town and any attempt to grow food all draw on the same scarce water, and by 2025 the region’s mines were reported to face a deficit of around 500 cubic metres an hour against what they need.

That makes water, not ore, the binding constraint on the whole system, and it is a food-systems and sustainability question before it is a mining one. Whatever share of water goes to expanding uranium output is a share not available to the towns and the small food production that a dry region depends on, unless the total supply itself is made to grow.

Water is the constraint, not ore

Erongo has the geology for uranium and almost none of the rainfall that ordinary agriculture assumes. Mines, municipalities and food producers therefore compete for a single, engineered water supply rather than drawing on separate natural sources. When the region’s uranium operations run a deficit measured in hundreds of cubic metres an hour, that shortfall is not a mining problem sealed off from everyone else; it is pressure on the same tap the region’s food and households use.

This reframes the 2025 boom. Rising uranium output is also rising water demand, and in an arid region a new mine is a new claim on a resource that food production also needs. The question is not whether mining deserves water but whether the supply can be enlarged fast enough that its growth does not come at agriculture’s expense.

In the desert, every extra tonne of uranium is also a fresh claim on water the food system wants.

Desalination as the shared lifeline

The answer the region has reached for is desalination. Orano’s Erongo plant produced a record 17.59 million cubic metres of potable water in 2025, about 14 percent more than the year before, and supplies it through NamWater to municipalities, mines and industry alike. A solar plant commissioned at Trekkopje now helps power the works, lowering the energy cost of manufacturing water in a place that has little to spare.

That plant is the shared lifeline that lets mining and everything around it coexist. Running near 22.5 million cubic metres a year against a design capacity of 45 million, it has room to grow, and its output is what stands between the region’s competing users and outright rationing. Desalinated water is expensive, but in Erongo it is the difference between a viable settlement and an unviable one.

Manufactured water is the only reason a mine and a market garden can share the same coast.

Building more supply: the Sunam plant

Because the existing deficit is real, more supply is being built. NamWater has formed a joint venture with Swakop Uranium to develop the Erongo Sunam desalination project near Swakopmund, a plant expected to cost about N$3 billion, roughly US$176 million, aimed squarely at easing the mines’ water shortfall. It is the clearest sign that the region intends to enlarge the pie rather than simply ration the slice.

For food systems that strategy matters more than it first appears. If new desalination capacity is sized only to the mines’ deficit, agriculture stays last in the queue behind industry and towns. If it is sized generously, the same infrastructure that serves uranium could underwrite the controlled-environment horticulture a coastal, water-scarce region would otherwise never sustain.

New desalination can crowd food out or invite it in, depending on how generously it is built.

The sustainability read

For anyone in food production or land use, the Erongo lesson is that sustainability here is a water-allocation problem wearing a mining story. A region that manufactures its water can support both extraction and food, but only if supply is planned as a common resource rather than captured mine by mine. The priority order between a uranium plant and a vegetable operation is set at the desalination outfall, not in the field.

The risk is that mining’s ability to pay for water sets the price beyond what food production can bear, so agriculture is priced out of a supply it is technically able to share. Sustainable outcomes depend on treating desalinated water as regional infrastructure with room for food, not as a mining input that towns and farms are allowed to buy what remains of.

Whether Erongo can feed itself is decided by how its manufactured water is shared, not by how much ore it sells.

For a food producer, a water planner or an agribusiness backer, the Erongo boom is a study in shared scarcity: uranium and food drawing on one engineered supply in a region that makes its own water. The decision it forces is whether to build and price desalination as common infrastructure with headroom for agriculture, or to let mining’s deeper pockets set the terms and leave the region earning record export figures while importing most of what it eats.

Sources: The Namibian; Orano’s Erongo plant produces record water (The Brief); Erongo uranium mines face water deficit (The Extractor)