Closing the Loop: A Comprehensive Review of Circular Repurposing Options for Decommissioned Wind Turbine Blade Materials

Abstract

Growing global concern about how to dispose of wind turbine blades has sparked an investigation into more sustainable alternatives. This research delves into finding eco-friendly solutions for managing the waste generated by wind turbine blades, specifically by exploring options for repurposing them. To put this into action, this study has focused on a New Zealand wind farm with 196 wind turbine blades at the end of its life cycle. Through a thorough review of documents, 60 potential ways were identified to repurposing these blades. Options falling under the downcycling category were excluded, thus narrowing down to 45 promising solutions to repurpose. Futher 7 practically applied global solutions are identified. Implementing these repurposing solutions would divert 331 tonnes of waste material from landfills from the New Zealand Wind Farm. This study is significant because it highlights the potential for a circular and sustainable approach and provides an example of how wind turbine blade waste can be diverted from landfill. The findings of this study contribute to practical insights and support initiatives across New Zealand to encourage the adoption of wind turbine blade repurposing. This, in turn, will foster environmentally conscious waste management practices within the renewable energy sector and promote a more sustainable future.

Keywords

• circular material
• end-of-life solutions
• repurposing
• waste minimisation
• wind turbine blades