Catalonia’s fishing fleet is trialling an innovative solution to combat the region’s persistent water shortages: generating its own fresh water at sea. A pilot project, involving two vessels from the ports of Roses and Palamós, is successfully testing portable desalination units. This move could grant the industry unprecedented autonomy and resilience against climate change.

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For more than four months, the trawler Medan has left the Port of Roses without carrying any stored fresh water. Instead, a compact desalination plant installed in its hold quietly converts seawater into a vital resource. This fresh water is crucial for cooling the engine, washing corrosive salt from the deck, and supplying the six-person crew during workdays that can last up to ten hours.

This initiative directly responds to the severe droughts that have plagued Spain, particularly Catalonia, leading to stringent water restrictions. While recent rains have offered some respite, with the Guiamets reservoir filling for the first time in two decades, long-term water security remains a critical issue for the region’s economy.

A European-Backed Innovation

This forward-thinking trial is part of a broader European project called Life eCOadapt 50. Coordinated by the Diputació de Barcelona, the project has a budget of €18.6 million running until 2030 and aims to implement 75 actions to help economic sectors vulnerable to climate change, including agriculture, forestry, tourism, and fishing.

The project is co-financed by the European Commission, which provides 60% of the funding, and the Generalitat de Catalunya, which contributes approximately €3 million through its climate fund.

The technology is being tested on two different scales. The Medan, which typically undertakes short trips of 20 to 40 miles, is fitted with a small unit producing 25 litres of potable water per hour, or about 250 litres a day. Meanwhile, a larger tuna fishing boat operating out of Palamós has a more powerful system capable of generating 60 litres per hour, catering to the needs of longer voyages.

“A Resounding Success”

Early results from the pilot have been overwhelmingly positive. Antoni Abad, President of the Roses Fishermen’s Guild, described the initial months as highly satisfactory, according to comments originally reported by La Vanguardia.

“The water saving is significant; it’s a success because it allows us to be autonomous,” Abad explained. “This year we have plenty of water, but during the height of the drought, we couldn’t even clean the salt off the boat. If it doesn’t rain-as has happened-this is a very important resource.”

Officials see the benefits extending beyond mere drought mitigation. Marc Serra, the Deputy for Climate Action and Energy Transition at the Diputació de Barcelona, highlighted the economic advantages. He stated that the initiative will bring “economic benefits to the fishing sector, making it more resilient and competitive in facing climate crises.”

Such innovations are crucial for an industry constantly adapting. For instance, Barna.News has reported on concerted efforts by Catalan groups lobbying the EU for rural and fishing funds to support modernisation and sustainability.

A Model for the Future

The potential for this technology is significant. If the pilot project continues to yield positive results, it could be replicated across the Catalan coastline and beyond. The ability to produce fresh water on demand would free vessels from their reliance on port-side refuelling, enabling longer trips for deep-sea fleets and ensuring operational continuity for all, regardless of drought conditions on land.

Sonsoles Letang, the Director General for Climate Change and Environmental Quality at the Generalitat, confirmed the government’s ambition to replicate the idea in other parts of the Catalan coast. This aligns with broader efforts to secure Barcelona’s water supply, such as the major investment to revitalise Park Güell’s hidden water system.

For Catalonia’s fishing fleet, the gentle hum of an onboard desalination unit could well be the sound of a more secure and sustainable future, turning the vastness of the Mediterranean from a workplace into a life-sustaining resource in more ways than one.