A switch in fuel source could help achieve a reduction in jet fuel lifecycle emissions similar to what the European Union targets through its 2030 sustainable aviation fuel blending mandate, according to a Rystad Energy analysis published Tuesday.
The EU's 2030 mandate to blend 6% SAF into jet fuel is expected to reduce average lifecycle emissions by about 4%, from 513kg to 492 kg of CO2e per barrel. However, emissions can vary by 26kg to 50 kg CO2e per barrel depending on the supply route, with both crude type and refinery choice driving the difference. This is more than the 21 kg reduction expected from the EU's 2030 mandate, the analysis said.
Switching fuel sources can already achieve the same emissions reduction as the EU's 2030 SAF blending requirement. With SAF costing about twice as much as conventional jet fuel, data-informed procurement will allow jet fuel purchasers cut lifecycle emissions at a lower cost than alternative routes, Rystad Energy said.
"Cutting emissions through fuel-source switching will not change SAF's long-term decarbonization role. But while SAF supply could be constrained, it is a saving that is available immediately and at a scale with potential to be implemented at all airports globally," the analysis added.