O&S Doors pioneers biomass CHP system in £9m first-of-its-kind investment

O&S Doors has installed a biomass-fuelled Combined Heat and Power (CHP) system at its Dungannon facility in a £9 million investment that is set to transform manufacturing waste into usable energy.

The project, partially funded by a £2.4 million grant from the Shared Island Sustainability Capital Grant Scheme, marks a significant milestone in industrial biomass adoption. The system will convert more than 10,000 tonnes of MDF dust annually — material previously sent to Europe for processing or to landfill — into 6.3 million units of energy.

The installation will generate 1 MW of electricity to power the company's heating and manufacturing processes while eliminating 1,500 tonnes of carbon emissions per year from operations.

O&S Doors, the UK and Ireland's largest wooden door manufacturer, supplies over 300 independent retailers alongside major clients including B&Q and Magnet across Ireland, the UK and USA.

John Toomey, CEO of O&S Doors, said the CHP system forms a central pillar of the company's net-zero strategy. "This investment enables us to reduce our reliance on purchasing electricity and reduce emissions linked to off-site MDF waste transport," he explained. "It also aligns with our growth strategy by providing reliable, cost-effective renewable energy while removing waste handling constraints in our manufacturing process."

The company aims to achieve net-zero emissions by 2028 through additional investments in electric vehicle adoption and zero-waste landfill operations.

The Shared Island Sustainability Capital Grant Scheme is delivered jointly by InterTradeIreland, Invest Northern Ireland and Enterprise Ireland. O&S Doors is one of three Northern Ireland projects receiving funding from the scheme's current awards.

Alison Currie, Chief Development Officer at Invest NI, highlighted the investment's broader significance: "This announcement is a clear example of how we are helping companies throughout Northern Ireland invest in energy and resource efficiency technologies to drive their competitiveness, green growth and commitment to Net Zero."