Sustainable Aviation Fuel UK unveils SAF revenue certainty mechanism to unlock domestic fuel production UK unveils SAF revenue certainty mechanism to unlock domestic fuel production Airlines 14 Jul 2026 RAF SAF spending should build fuel resilience, not just meet mandates RAF SAF spending should build fuel resilience, not just meet mandates OXCCU 9 Jul 2026 Hydrogen SAF could power cleaner flying and 10,000 UK jobs Hydrogen SAF could power cleaner flying and 10,000 UK jobs Hydrogen 8 Jul 2026