German energy group Uniper has signed a capacity reservation agreement for future sustainable aviation fuel (SAF) output from Syzygy Plasmonics' planned NovaSAF facilities across Central and South America, strengthening commercial backing for a lead project that is approaching final investment decision.

The agreement covers SAF produced with Syzygy's proprietary Rigel photocatalytic reactor, which converts regional biogas feedstocks into low-carbon jet fuel. The deal lands as Syzygy prepares for FID on NovaSAF-1, its flagship project in Uruguay.

What does the deal cover?

The reservation spans the NovaSAF production slate — announced projects, not yet built capacity — in Central and South America. All of them would run the Rigel reactor platform, which processes distributed biogas streams into synthetic drop-in fuel.

The arrangement matters for certification as much as volume. Syzygy's production pathway supports compliance with both biogenic and Renewable Fuels of Non-Biological Origin (RFNBO) standards. That gives Uniper dual-certified supply flexibility to meet European aviation mandates under ReFuelEU Aviation and CORSIA.

Why Uniper is reserving now

The capacity reservation fits Uniper's strategy to expand its low-carbon fuel trading desk, positioning the company to serve rising airline demand for compliant SAF across European hubs. With ReFuelEU Aviation mandate volumes escalating, traders are locking in future supply from pre-FID producers to secure position before capacity is committed elsewhere.

"Uniper's decision to reserve NovaSAF capacity reflects the commercial traction our platform is attracting at the moment when it is most needed to meet mandate volumes," said Trevor Best, CEO of Syzygy Plasmonics.

"Agreements like this affirm that the market is moving to meet EU commission targets."

The technology angle

Syzygy's route differs from conventional SAF pathways in one key respect. Instead of thermal conversion, the Rigel reactor uses photocatalytic reforming. The company aims to significantly lower unit production costs and operational emissions when processing distributed biogas into drop-in fuels.

That cost argument is central. Distributed biogas streams are typically small and geographically scattered, which punishes capital-intensive thermal plants. A modular photocatalytic system that scales down economically could unlock feedstock volumes that centralized pathways cannot reach.

What happens next

The near-term milestone is FID on NovaSAF-1 in Uruguay. The Uniper reservation adds an offtake-style commercial anchor to the project's financing case, but it stops short of a binding purchase agreement — capacity reservations typically convert to firm offtake once a project reaches sanction and defined production specs.

Until that FID lands, NovaSAF-1 remains an announced project. The decision to track is whether Uniper's reservation, alongside earlier development support, is enough to push the Uruguay facility into construction.