Finnish technology company Liquid Sun is launching a pilot project in Espoo to produce renewable synthetic aviation fuel (e-SAF) from biogenic CO₂ emissions. Based on low-temperature electrolysis (LTE) technology developed at Tampere University, the process combines CO₂ and renewable hydrogen to create e-SAF.

Set to be operational in autumn 2025, the facility will be Finland’s first pre-commercial electrofuel production pilot. The initiative, supported by Finnair, ABB, Fortum and Finavia, aims to establish a scalable value chain for domestic e-SAF production.

The project comes as the EU aviation blending mandate takes effect, requiring renewable fuels from 2025, with synthetic fuels included from 2030 and a 70% renewable share by 2050, half of which must be e-SAF. Finland’s forest industry and biogas plants generate around 20 million tonnes of biogenic CO₂ annually, offering a strong feedstock base for decentralised production.

The pilot will also support Finland’s wider energy transition by strengthening energy security and balancing electricity grid load, while positioning the country as a competitive player in the emerging global e-SAF market.