The life cycle assessments (LCAs) have been paramount from an environmental perspective . These comprehensive studies, exemplified by recent works like , evaluate not only the carbon footprint but also a broad spectrum of environmental impacts, from resource extraction to end-of-life considerations . Such LCAs have provided nuanced insights into the genuine sustainability credentials of e-fuels, considering varied production pathways in methodologies and regional contexts . However, despite these numerous and valuable individual research endeavours, there remains an evident gap: a holistic and integrated analysis that bridges techno-economic evaluations (TEA) with life cycle assessments (LCA), providing a comprehensive overview of e-fuel production . Our study seeks to address this lacuna. By amalgamating insights from both TEA and LCA, we aim to provide an integrated perspective on e-fuels, offering a multi-faceted understanding of their feasibility, costs, and environmental implications.