James Hygate, Firefly: “You can’t not do it, if you know how to do it”

Date: 8 July 2026

James Hygate, CEO and founder of Firefly, returns to The SAF Podcast for the first time since December 2023 — and a lot has happened. James brings his characteristic blend of technical depth, founder candour, and big-picture ambition to a brilliant wide ranging discussion. 

James opens with a comprehensive update on Firefly’s progress: the selection of Turkish engineering firm Altaca as their HTL technology partner, the securing of a site at an existing refinery in Harwich for the downstream hydrotreating facility, and supply agreements with water companies including Severn Trent and Anglian Water that already cover more feedstock than the first facility needs. He also touches on the significance of the Boeing investment, the Builders Vision backing, and the ongoing Series B round that Firefly hopes to close shortly.

James also shares his observations from a recent visit to Shanghai on the pace of Chinese SAF and renewables infrastructure development, the implications of used cooking oil supply being internalised within China, and what lessons — if any — Western developers can draw from “China speed.” We also explore the trajectory of the wider SAF industry, James’s concerns about policy wobble and its chilling effect on infrastructure capital, and a frank view on whether some SAF projects are gaming mandates rather than genuinely pursuing decarbonisation.

Throughout, James returns to the thread that has defined his 20-year career in low carbon fuels: the only thing worth doing is something that can move the needle on climate change. For Firefly, that means wet-waste-to-jet at gigaton scale — and James believes the technology stack to do it is now in place.