en.Wedoany.com Reported - Canada's Syntholene has completed construction of its geothermal-powered synthetic aviation fuel (e-SAF) demonstration plant in Húsavík, Iceland, six months ahead of schedule.

After receiving a 250kW solid oxide electrolyzer (SOEC) from Denmark's Dynelectro, Syntholene confirmed it will release data on its green hydrogen-based e-SAF production route in the fourth quarter of this year.

The facility was built in just 69 days and under budget, aiming to validate the integration of e-fuel production processes with geothermal infrastructure, SOEC systems, and Balance of Plant.

The project will deploy Syntholene's proprietary thermal coupling heat exchanger technology for the first time. The system recovers heat from a 20-kilometer insulated geothermal pipeline, reducing the electrical input required for SOEC operation.

The facility is designed to support e-fuel blending mandates such as the EU's RefuelEU Aviation policy. Under a non-binding offtake agreement signed in January, the project could supply up to 20,000 tonnes of e-SAF annually to Icelandair in the future.

Syntholene CEO Dan Sutton stated: "If validation is successful, we believe this represents a significant step toward cost-competitive synthetic aviation fuel."

SOEC is considered a highly efficient electrolysis hydrogen production technology due to its ability to reduce electricity consumption by utilizing heat sources. Dynelectro stated that its 250kW SOEC unit can produce 27 kilograms of hydrogen per 1MWh of electricity consumed.

However, SOEC technology is still in its early development stage, with no large-scale commercial systems in operation globally.

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