Compact Syngas Solutions (CSS) has won £3,979,113 from the Bioenergy with Carbon Capture and Storage (H2BECCS) Innovation Program, run by the Department for Energy Security and Net Zero (DESNZ). CSS, based in Deeside, Wales, previously won a first round of funding of £246,568.

CSS have developed an advanced gasification process that generates H₂ gas from waste products, including biomass like waste wood and other selected non-recyclable materials.

This waste is often sent to landfill, where it decomposes and emits harmful gases including CO₂ and methane into the atmosphere. The technology harnesses this waste by converting it into syngas, a valuable gas that can be used to produce H₂ for use as a cleaner fuel.

The new funding will help CSS build a full-scale rig to show that water can be used to separate and store CO₂ during the process. This has previously been achieved with amines, a potentially harmful compound derived from ammonia.

Removing the CO₂ reduces the carbon footprint of the H₂ produced and makes the process more efficient. The syngas, once separated from the H₂, is also used in a gas engine that generates energy to power the process and export surplus to the grid, maximizing outputs from the system.

During the project, the rig will run continuously for 1,000 hours, reliability testing the technology and getting it ready for commercialization. Every day, a single module will produce 750kg of H₂—enough to fuel a fleet of HGVs—and capture around 1,600 kg of CO₂.

CSS plans to build more than 50 H₂ modules at around 15 sites, ranging from a single module to six per site offering the flexibility to suit local demand. These 50 modules will produce 11,000 tpy of H₂ and capture 29,000 tpy of CO₂.

The technology will be key to helping the UK reach its net zero 2050 target. The production of low-carbon H₂ from waste materials stops it reaching landfill and creates a fuel that has no greenhouse gas by-products. H₂ has many uses in transport and industry.

Paul Willacy, managing director of Compact Syngas Solutions, said, “Winning a second round of funding is an incredible achievement for the team, as we were up against some stiff competition.

“We are delighted that we can now scale up technology into a commercial-scale demo plant, and we are actively looking for further investment to support rollout in the next couple of years.

“Capturing and storing the carbon from our gasification process and the H₂ we produce will support the drive to net zero and lower the environmental impact of producing this green fuel at scale.

“H₂ has a very low environmental impact, but this project will help deal efficiently with the CO₂ that emerges during its production.”