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saf supply

Sustainable Aviation Fuel: How Much Exists, and What It Costs

17-09-2026 0
Short answer: In 2026, global SAF production reached about 1.2 billion gallons, roughly 7 % of total jet fuel demand, at a price premium of $0.70–$1.10 per gallon above kerosene. Feedstock limits, mainly corn and algae, cap annual output at ~1.5 billion gallons unless new biorefinery...
contrail forecasting

Contrail Forecasting: How Airlines Find the Air That Makes Ice

16-09-2026 0
Short answer: Contrail forecasting uses numerical weather prediction models to locate ice-supersaturated regions (relative humidity over ice above 100%) where contrails persist. Airlines can avoid forming them by descending or climbing 2,000 feet, which typically costs 0.5–2% extra fuel per...