SWISS and Kuehne+Nagel Launch Groundbreaking Partnership for Solar-Based Synthetic Fuel, Decarbonizing Aviation with Synhelion’s Technology

As of early 2026, a transformative partnership between Swiss International Air Lines (SWISS) and Kuehne+Nagel has entered a crucial operational phase, following a major agreement signed in late December 2025. This alliance is focused on the commercialization of solar-based synthetic aviation fuel, a revolutionary step towards achieving decarbonization in the aviation sector. This collaboration brings together a Swiss clean-tech pioneer, Synhelion, whose innovative technology is at the heart of this significant move, promising to reshape the future of aviation fuel.

The deal marks the start of a new chapter in the airline and logistics industries as these giants join forces to combat the aviation sector’s carbon footprint. With sustainability at the forefront, this partnership aims to make solar-based fuel a viable, scalable, and long-term solution for reducing emissions in air travel.

Who Are the Key Players in the Partnership?

This landmark collaboration involves three main players: SWISS, Kuehne+Nagel, and Synhelion. SWISS, the national carrier of Switzerland, is leading the way as the first airline to integrate solar-based synthetic aviation fuel (SAF) into its regular operations. Kuehne+Nagel, a global logistics provider, will benefit from this innovation by offering its airfreight customers a way to significantly reduce their carbon footprint. Synhelion, a clean-tech company from Switzerland, is the technology provider behind the synthetic fuel, specializing in converting concentrated solar heat into aviation fuel.

What Is Solar-Based Synthetic Fuel?

The core of this groundbreaking partnership is the support for Synhelion’s solar fuel technology, which has already made headlines in the clean-tech industry. Synhelion is the first company globally to use concentrated solar heat to produce sustainable aviation fuel (SAF). Unlike traditional biofuels, which rely on agricultural crops and waste products, solar jet fuel is produced by harnessing the power of sunlight to create high-temperature process heat. This heat is then used to convert biogenic carbon and water into liquid fuel, resulting in a synthetic fuel that is both carbon-neutral and scalable.

The technology is being hailed as a game-changer for the aviation industry, as it does not compete with food crops, unlike traditional biofuels. The fuel is designed as a “drop-in” solution, meaning it can be used in existing aircraft engines and infrastructure without the need for any modifications, making it a practical and seamless transition for airlines.

How Will This Partnership Work?

Under the terms of the agreement, SWISS has committed to purchasing at least 200 tonnes of Synhelion’s synthetic SAF annually. This move is critical to the financial sustainability of Synhelion’s production capabilities, ensuring that the company can scale its operations and meet the growing demand for sustainable aviation fuel. The fuel will be used by SWISS in its own operations, marking the airline as a trailblazer in sustainable aviation practices.

Furthermore, Kuehne+Nagel will also benefit from the partnership by purchasing a significant portion of the SAF. The global logistics provider will use this fuel specifically for its airfreight shipments handled by Swiss WorldCargo, the air cargo division of SWISS. This marks a major step in the broader decarbonization of supply chains, as Kuehne+Nagel will be able to offer its customers a tangible and effective way to reduce the CO₂ footprint of their supply chains.

What Are the Long-Term Goals and Timeline for This Partnership?

This collaboration is based on a binding, long-term offtake agreement, ensuring that both SWISS and Kuehne+Nagel have a reliable and steady supply of synthetic SAF for years to come. The fuel supply agreement for Kuehne+Nagel will officially begin in 2027, once Synhelion completes its first industrial-scale production facility.

The partnership is a significant step in the aviation industry’s collective effort to reach ambitious decarbonization targets. SWISS’s parent company, Lufthansa Group, is aiming to reduce net CO₂ emissions by 50% by 2030, with the goal of reaching net-zero emissions by 2050. This collaboration will help the airline make substantial progress toward these targets, setting a standard for other airlines to follow.

Why Is This Partnership Considered a “First-of-Its-Kind”?

Unlike many airlines that use bio-SAF, produced from waste oils and fats, this partnership is focused on synthetic SAF, which is seen as the “gold standard” for sustainability. Synthetic SAF does not compete with food crops, has the potential for near-limitless scalability, and offers a significantly lower carbon footprint than traditional aviation fuel. Additionally, synthetic SAF can be produced at scale without relying on the limitations of agricultural resources, making it a highly sustainable alternative to fossil fuels.

This partnership also stands out because it bridges the gap between the airline industry, logistics, and clean-tech solutions. By partnering with Kuehne+Nagel, SWISS is not only leading by example in the aviation sector but also contributing to the larger efforts to decarbonize global supply chains.

What Are the Strategic Goals for This Collaboration?

The goals of the partnership go beyond simply purchasing and using synthetic SAF. The primary objectives include:

1. Decarbonizing Aviation: Both SWISS and Kuehne+Nagel are committed to using sustainable aviation fuel as a critical part of their decarbonization strategies. For Kuehne+Nagel, securing a long-term supply of SAF allows the logistics giant to significantly reduce the carbon emissions from its airfreight operations.
2. Scalability of Synthetic SAF: One of the long-term goals is to scale the production of synthetic SAF to make it economically viable and accessible to the wider aviation industry.
3. Strategic Alignment with Climate Goals: This collaboration aligns perfectly with the Lufthansa Group’s broader climate targets and emphasizes the importance of innovation in achieving net-zero emissions by 2050.

What Does This Mean for the Aviation and Logistics Industries?

The agreement between SWISS, Kuehne+Nagel, and Synhelion is a major milestone for the aviation and logistics sectors. This partnership provides a practical solution to one of the industry’s most pressing issues: reducing emissions from air travel. As the first airline in the world to integrate solar fuel into its operations, SWISS is setting a new benchmark for the industry. This collaboration is also a clear signal to other logistics and aviation companies to follow suit and explore sustainable fuel alternatives.

In conclusion, this first-of-its-kind partnership is not only a major step for SWISS, Kuehne+Nagel, and Synhelion, but it also represents a breakthrough for the aviation industry’s shift towards sustainability. With solar-powered synthetic aviation fuel, this collaboration promises to pave the way for a greener, more sustainable future in aviation and global supply chains.

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