eSAF (electro-Sustainable Aviation Fuel) is a synthetic aviation fuel produced using green electricity, water and CO₂. At FjordPtX, eSAF is produced by combining technical water from Aalborg Forsyning's wastewater plant with renewable energy and CO₂ collected from Nordværk's waste-to-energy plant. The result is a climate-friendly fuel that can be used in existing aircraft engines and contribute to more sustainable aviation.