Hot off the heels of their public announcement, Mel Courtney, Catagen is the latest guest on The SAF Podcast. 

We discuss the spinning out of Catagen ClimaHtech Green Flight, utilizing the technology honed in the 15 years of emissions testing, for their modular sustainable aviation fuel facilities through electrified reverse water gas shift Fischer-Tropsch. 

Unlike conventional centralized refineries, their modular approach produces between one and ten million liters of neat SAF annually, designed to co-locate with existing renewable energy infrastructure. This strategy unlocks untapped potential from smaller wind farms across the UK and Europe that typically go underutilized by large-scale industrial operations.

We break down Catagen's financing strategy. Government grants helped reach TRL 7. Currently they are engaged in a SAFE note equity raise before opening up to a pre-FID £18m equity round. This is followed by a planned project investment bringing the total to £60m.

This small amount of investment compared to large centralised facilities is one of the benefits Mel highlights of the modular strategy. Others include the ability to co-locate with renewable energy infrastructure, feedstocks or airports offering great operational flexibility. 

We touch on the recent off take announcements from the launch with Ryanair and Shell Aviation Ireland, emphasising how modular SAF facilities can suit airline economics for regional carriers. 

If listening to the facility description wasn't enough you can see it via the link here: https://climahtechgreenflight.co.uk/wp-content/uploads/2025/09/2025.08.07_catagen_digital_launch_v4_subtitled-540p.mp4