United Airlines wants to turn microalgae into SAF through the first new investment of its recently announced UAV Sustainable Flight FundSM since its launch: algae biofuel company Viridos. This $5 million investment will support the production of sustainable aviation fuel (SAF) made from algae, an abundant and scalable resource that can be grown and harvested without impacting the food supply chain.
SAF is an alternative to conventional jet fuel that, on a lifecycle basis, reduces greenhouse gas (GHG) emissions associated with air travel compared to conventional jet fuel alone. SAF is made from used cooking oil and agricultural waste, and, in the future, could be made from other feedstocks, including household trash, forest waste, or algae. To date, United has invested in the future production of over three billion gallons of SAF – the most of any airline in the world.