JRC Report: EU Hydrogen Expansion Unlikely to Cause Widespread Water Shortages

A new European Commission Joint Research Centre report finds that expanding renewable and low-carbon hydrogen production across the EU is unlikely to put major pressure on most water supplies. The study, published in October 2026, looked at freshwater demand from electrolysis under different climate scenarios through 2030 and 2050. Most hydrogen plants would sit in areas with low to moderate water stress, but about one in ten could face real competition for water in a pessimistic climate scenario. Southern Europe is the main risk zone, especially parts of Spain, Italy, and Portugal. The JRC says all projected hydrogen water demand would come from freshwater, so coastal projects should consider desalinated seawater, treated wastewater, or brackish water to ease the strain. The report also recommends river basin level planning, better water efficiency, and seasonal monitoring so hydrogen output can adjust when supplies run low. For anyone tracking EU hydrogen policy or project siting, the report is a useful reality check. Water is not a continent-wide blocker, but it could become a local constraint if developers ignore regional scarcity. The full JRC study is worth reading before picking locations for new electrolysis capacity.