Hartwell supplying key SG100 components

6 April 2022
6 April 2022 sg-admin


Standard Gas Technologies Ltd. has contracted Wakefield, UK-based Hartwell Manufacturing & Mechanical Services Ltd. to provide a range of stainless-steel vessels and structures for its first SG100 carbon-removing energy-from-waste plant currently under construction in Norfolk, UK.

Commenting on the link-up, Standard Gas’ Technical Director, Laurence Sharrock, says: “We are really impressed with Hartwell’s team and its manufacturing capabilities. Hartwell will be providing us with a range of components for the SG100, including hoppers, cyclones, and other structures. The company’s case studies underline its competencies, and Hartwell’s customer list adds to our confidence in their ability to deliver high-quality products and service. We look forward to a long and multi-plant collaboration.”

Standard Gas’ SG100 Advanced Thermal Cracking technology transforms a wide range of non-recyclable and hazardous wastes into a clean synthesis gas (syngas) and biochar. As it doesn’t burn waste, the process has very low emissions. Tar-free, the company’s syngas, which achieved End of Waste certification from the UK’s Environment Agency, can be used to generate electricity, and heat, or processed via methanation into transportation fuels, chemical feedstock or for grid injection. Coupled with electrolysis or via reformation, the SG100 can generate between 650 tonnes and 3,000 tonnes of Green hydrogen a year. The co-product biochar captures and removes carbon when used in sequestering applications such as soil enhancer or as a construction aggregate.

Having proved the technology with its commercial-scale demonstration plant in Cambridgeshire, UK, the company’s first SG100 plant is under construction, also in the UK. Capable of processing 48,000 tonnes of waste a year, the SG100 can generate an average of 40,000 MW hours of power and, dependent on feedstock, remove up to 16,000 tonnes of CO2e. With a small footprint, the plant can be deployed in a modular manner, making it rapidly scalable for a range of end-use applications.


Hartwell Managing Director, Paul Tomlinson commented “This a fantastic opportunity for Hartwell Manufacturing to support Standard Gas on this innovative plant and further enhances our reputation as a high-quality fabricator and solutions provider to the UK Green Energy Market. This project and Standard Gas’ ambition fit perfectly with Hartwell’s strategy of synergy with key companies within this sector and we look forward to a long and successful collaboration with Standard Gas.”

Privately-owned Hartwell Manufacturing has been providing high-quality machining and fabrication services since 1974. Based in Osset, Wakefield, the company has five main divisions – Heavy Steel and General Fabrications, Material Handling Plant, Vessels and Tanks, Chimneys and Flues, Installation and Site Services – and a large manufacturing unit located close to the M1, with quick and easy access to all major UK routes.

For more information contact:

Peter Coombes, Head of Corporate Affairs, Standard Gas: [email protected] or +44 (0)7770 637528

Chris Wright, Hartwell Manufacturing: [email protected] or +44 (0)1924 26282