Europe's Green Fuel Gamble Pays Off, but the Hard Part Lies Ahead

European aviation quietly crossed a significant threshold this week when the European Union Aviation Safety Agency indicated that the bloc's airlines had likely met, and possibly exceeded, the two per cent sustainable aviation fuel mandate for 2025. The confirmation, delivered on the eve of the March 31 reporting deadline, offers a rare moment of cautious optimism for an industry navigating one of its most demanding regulatory periods in a generation.

The FuelEU Maritime mandate has a direct parallel in aviation: regulators set the two per cent SAF blending requirement as the first rung of a ladder that climbs steeply in the years ahead, reaching six per cent by 2030 and 70 per cent by 2050. Meeting the opening target was never guaranteed. As recently as last year, industry voices were warning that supply constraints, prohibitive production costs, and uneven infrastructure across Member States could leave airlines falling short.

That the sector appears to have held the line is partly a function of determination and partly one of low absolute numbers. Two per cent is, by any reckoning, a slender share of total jet fuel consumption, and the structural challenges that made even this modest goal contentious have not disappeared. SAF production remains significantly more expensive than conventional kerosene, and the supply chain required to scale output to meaningful volumes is still in its formative stages.

The lobbying context sharpens the picture further. The International Air Transport Association has been pressing Brussels to reinstate free EU ETS allowances for aviation, arguing that a simultaneous rise in carbon compliance costs and green fuel obligations risks undermining the very investment capacity airlines need to decarbonise. The aviation sector is expected to surrender nearly 330 million allowances between 2026 and 2030, generating substantial revenues for Member States that the industry argues should be redirected toward SAF infrastructure.

Tuesday's milestone is real. But it is also, in the broader arc of European aviation decarbonisation, the easiest step the industry will ever take.