SciTransfer
SUN-to-LIQUID II · Project

Solar-Powered Production of Sustainable Liquid Aviation and Shipping Fuels

transportTestedTRL 5

Imagine using giant mirrors to concentrate sunlight into a super-hot oven that turns water and air into liquid fuel. It works like a chemical factory powered entirely by the sun instead of electricity or oil. This process creates high-energy fuels that can be poured straight into existing airplane tanks.

By the numbers
15%
Target energy conversion efficiency
80%
Potential greenhouse gas emission reduction
1%
Arid land required to meet global fuel demand
50-kW
Demonstration scale
The business problem

What needed solving

Aviation and shipping require energy-dense liquid fuels but must drastically reduce carbon emissions to meet climate neutrality goals. Current renewable fuel feedstocks are limited and often compete with food production.

The solution

What was built

A 50-kW solar-thermochemical system including a high-flux heliostat tower, 3D-printed reactor materials, and heat recovery components.

Audience

Who needs this

Sustainable Aviation Fuel (SAF) producersGreen shipping fuel developersSolar energy infrastructure firmsCarbon capture and utilization companies
Business applications

Who can put this to work

Aviation
enterprise
Target: Airline operators

If you are an airline operator dealing with strict carbon emission mandates — this project developed a solar-thermochemical pathway that can reduce greenhouse gas emissions by more than 80%. It provides a scalable source of sustainable aviation fuel (SAF) from non-biological origins.

Maritime Transport
enterprise
Target: Shipping fleet owners

If you are a shipping fleet owner dealing with the need for energy-dense liquid fuels for long-haul routes — this project developed a system to produce renewable hydrocarbons from sunlight, water, and CO2. This ensures a long-term fuel supply that doesn't rely on fossil fuels.

Energy Infrastructure
mid-size
Target: Renewable energy plant developers

If you are a plant developer dealing with underutilized arid land — this project developed a high-flux solar concentration system that can meet global fuel demand using less than 1% of arid land. It turns non-arable land into a high-value fuel production hub.

Frequently asked

Quick answers

What is the expected cost or price of the fuel?

Based on available project data, specific price per liter is not provided, but the project aims to create a cost-effective conversion pathway and a commercial exploitation strategy.

At what industrial scale is the technology being demonstrated?

The project is demonstrating the integrated pathway on a 50-kW scale and creating a conceptual design for a multi-megawatt-scale commercial plant.

How is the IP and licensing handled?

Based on available project data, the project includes a commercial exploitation strategy, though specific licensing terms are not detailed.

What is the timeline for commercial availability?

The project runs from November 2023 to October 2027, focusing on moving technology from TRL 2-3 to TRL 4-5.

How does this integrate with existing fuel infrastructure?

The system produces liquid hydrocarbon fuels, which are energy-dense and compatible with existing aviation and shipping requirements.

Consortium

Who built it

The consortium is highly industry-weighted with a 50% industry ratio, comprising 3 industrial partners (including 2 SMEs) and 3 research organizations. This balance suggests a strong focus on commercial viability and scale-up, leveraging expertise across 5 European countries (CH, DE, ES, FR, NL).

How to reach the team

Contact Bauhaus Luftfahrt EV in Germany

Next steps

Talk to the team behind this work.

Contact us to explore licensing opportunities for solar-thermochemical fuel production.

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