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  • Our gasification system.

Compact Syngas Solutions

Green fuels for a clean future
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Using gasification, CSS produce a high quality, low carbon syngas, that can be used for a variety of application to produce hydrogen, liquid fuels or just traditional heat and power. The modular system can operate off-grid and is flexible to allow for a variety of power and fuel requirements.

The Technology

Our system uses downdraft gasification technology which is one of the cleanest and most efficient method of converting biomass and other feedstocks into valuable synthesis gas (syngas), capable of directly fuelling standard engines to generate heat and power (CHP).

CSS’ innovative patented processes, enables us stand out from the competition, add to this our seven stages of syngas cleaning and cooling this ensures that our product gas is not just ultra clean but of the highest quality. In fact, the syngas produced by our system has been proven and accredited to be cleaner than natural gas, making it one of the purest fuels available for generating power.

Advancing our technology, we now have the capability to produce not only heat and power but hydrogen and liquid fuels whilst capturing the carbon via biochar and in gaseous form for use in industrial process, making our technology a truly green option for our client’s energy needs. We have named our technology the CSS Micro-Hub.

Our company logo, with alternative colouring.

Why the Micro-Hub?

  • Dark blue line art of a factory.

    Micro-Hubs can run 24/7 and generate energy from waste products, including biomass like waste wood and other selected non-recyclable materials.

  • Green line art of a footprint.

    Power and Hydrogen produced from biogenic feedstock has lower CO2 emissions. Coupled with CSS carbon capture technology the Micro-Hub will be carbon neutral.

  • Blue line art of a bar chart.

    Micro-Hubs can produce power, heat, hydrogen and liquid fuels and can utilise power internally.

  • Green line art of a piggybank.

    Payback for a Micro-Hub can be as low as 2.7 years with the inclusion of gate fees, energy and heat recovery, RTFO and power/hydrogen/liquid fuels wholesale price.

  • Blue line art of a plant.

    Micro-Hubs are a modular configuration allowing for a smaller footprint, simpler planning & permitting process, and are easier to install.

  • Blue line art of a dashboard.

    Micro-Hubs are tailored to customers energy requirements and as and when demand grows modular plants can be added.

The Process

Heat and Power - patented gasification system for heat and power generation.

Diagram showing our Low Carbon Hydrogen production process.

Low Carbon Hydrogen production - utilsiting the patented front end gasification system with the CSS developed PSA and Carbon Capture Technology.

Diagram showing our heat and power generation process.
Our company logo, with alternative colouring.


  • Grade C waste wood used as feedstock.

    Grade C Waste Wood

    This material often comes from construction and demolition activates is regularly separated by waste recyclers as fuels for boilers, etc.
  • Clean wood chips used as feedstock.

    Clean Wood Chip

    Often recovered from forestry and sawmill activities, this clean product is perfect for gasification, however, often commands higher prices than grade B and C waste wood.
  • Compost oversize material used as feedstock.

    Compost Oversize

    Compost oversize is rejected material that often comes from garden waste recycling material – this fuel often contains contaminants such as plastic film making it more difficult to recycle.
  • Tea prunings used as feedstock.

    Tea Prunings

    CSS are working closely with a Kenyan company looking at locally produced feedstocks to help decarbonise the tea sector – materials such as tea, pruning, maize shanks and bamboo have all been successfully gasified.
  • RDF pellets used as feedstock

    RDF Pellets

    Refuse derived fuel once shredded, dried and pellets makes a great fuel for gasification. The CSS system has been designed for low grade briquettes and pellets to minimise preparation costs and ensure gate fees are still received in many cases.
  • A man holding a bag of bagasse material, which is used as feedstock.


    Bagasse produced from the production of sugar is also a suitable fuel and often has no other local uses and can be left to degrade and sometimes simply burned to dispose of it.

CSS Team

Our core team comprised of 14 staff covering Mechanical, Electrical, Chemical and Process Engineering with a wide network of associates and specialist manufacturing partners to help us professionally deliver projects

  • Managing director Paul Willacy.
    Paul Willacy
    Managing Director
  • Commercial director Karen Taylor.
    Karen Taylor
    Project Director
  • Commercial Director John Williams.
    John Williams
    Commercial Director
  • Chemical engineer and advisor, Professor Stan Kolaczkowski.
    Professor Stan Kolaczkowski,
    BSc PhD CEng FIChemE EurIng (& Bath Process Consultants Ltd)
    Chemical Engineer and advisor
  • Rajesh Sharma
    Rajesh Sharma
    Finance Director
Our company logo, with alternative colouring.