The EU's sustainable aviation fuel mandate has delivered in its first year. Published 17 September 2026, the EASA ReFuelEU Aviation Annual Technical Report 2026 confirms 1.1 million tonnes of SAF were supplied at EU airports in 2025 — 2.8% of total aviation fuel, exceeding the mandatory 2% minimum. SAF supply increased almost sixfold from 2024, reaching 121 EU airports across all 27 member states. The mandate was not only met but exceeded.

The EASA report warrants a constructive reading. Ireland's airlines, airports, and lessors are fully within the ReFuelEU framework; the IAA is competent authority under SI No 396/2025. The Deloitte Ireland Aviation Finance Leaders Survey 2026 confirmed 50% of Irish lessor executives are monitoring SAF but have no active plans, and only 9% intend to invest. The first successful compliance year reframes SAF from future obligation into present commercial reality for Irish aviation.

The supply data carries direct operational implications for Irish airport management. Dublin, Shannon, and Cork are all within the ReFuelEU framework. The WEF Global Aviation Sustainability Outlook 2026 confirms SAF infrastructure — blending, storage, and logistics — is the primary bottleneck. EASA shows 86% of EU SAF was produced domestically but 85% of feedstocks were imported, making supply chain security the pivotal challenge for airport operations ahead of the 6% 2030 mandate.

For Ireland's leasing sector, the ReFuelEU compliance data is a strategic inflection point. The IAA Statement of Strategy 2026–2028 explicitly commits to a dedicated environmental function to support SAF adoption. The pricing differential remains significant: average SAF price in 2024 was €2,085 per tonne versus €734 for conventional jet fuel. Lessors whose lease documentation does not address SAF cost exposure and blending obligations face a structural gap that is no longer theoretical.

The upward ReFuelEU trajectory — 2% in 2025, 6% by 2030, 20% by 2035, 70% by 2050 — is the most commercially significant long-range signal for Irish aviation operational excellence planning. Around 50 SAF projects await final investment decisions. Ireland as the only English-speaking EASA state is a natural hub for aviation innovation and regulatory expertise SAF scale-up will require — from financing structures to airport operations and aircraft maintenance.

Three strategic priorities follow. First, Irish airline and airport operations teams should review SAF infrastructure readiness at Dublin, Shannon, and Cork against the 6% 2030 mandate now. Second, Irish lessors should audit lease documentation for SAF cost exposure before the 6% mandate tightens airline margins. Third, workforce development in sustainability regulatory affairs should be treated as a 2026 priority across the Irish commercial aviation sector — the compliance pipeline runs to 2050.

The EASA ReFuelEU Aviation Annual Technical Report 2026 documents a mandate that has delivered in year one. For those leading the Irish aviation industry — across airlines, airports, lessors, MRO providers, and the commercial aviation and aviation technology ecosystem — the 2.8% compliance figure is the new baseline from which the EU's most ambitious aviation sustainability framework will be enforced. Ireland's aviation excellence depends on getting ahead of that curve.