The UK and Ireland's renewable energy sector is grappling with a growing challenge: what to do with the colossal blades of decommissioned wind turbines. As the first generation of wind farms reaches the end of its operational life, thousands of tonnes of non-recyclable material are set to require disposal by 2030, with current methods largely involving landfill or incineration.
This issue was brought into sharp focus earlier this year with the decommissioning of the Bellacorrick wind farm in County Mayo, the first commercial wind farm on the island of Ireland. In response, two Northern Ireland-based companies are collaborating to establish more environmentally friendly disposal methods. It is estimated that over 400 turbines in Northern Ireland alone will need replacement within the next 15 years, highlighting the urgent need for sustainable solutions.
Scientists globally are exploring ways to repurpose these massive structures. Groundbreaking research from Queen's University Belfast (QUB) has demonstrated that decommissioned blades can be safely integrated into construction projects, such as bridges and other forms of street furniture. This offers a promising avenue for high-value reuse, moving beyond simple disposal.
Further innovation is coming from Plaswire Ltd in Lurgan, County Armagh. The company is actively transforming wind turbine blades and other large-scale industrial waste into a durable, reusable material. Andrew Billingsley, Chief Executive of Plaswire, described the scale of the waste problem as 'colossal', noting that an estimated 125,000 tonnes of blades are currently disposed of worldwide, rarely in a sustainable manner. Plaswire's process creates products that can serve as alternatives to timber, for applications like fence posts and transport pallets, and potentially even precast concrete. Billingsley highlighted the environmental benefits, stating that their process prevents the incineration of plastics, which typically produces between 2.7 and 2.9 tonnes of CO2 per tonne burned, while virgin plastic manufacturing requires approximately three tonnes of CO2 per tonne.
Ensuring the green credentials of these new products is paramount, and this is where ubloquity, founded by Kieran Kelly, comes in. His company uses technology such as QR codes and radio frequency identification (RFID) to track products throughout their entire supply chain, from source to end-user. This allows for complete transparency, providing information on when and where a product was made, its origin, and its final form. Kelly emphasised the transformative potential of giving a 'voice' to recycled materials, enabling brands to tell a transparent sustainability story on a global stage. This technology mirrors similar systems used for post-Brexit freight checks across the Irish Sea, indicating a growing demand for traceability in various sectors.