In 2026, researchers modelled recycling centres for Australia’s future wind blade waste. Years later, circular solutions are being explored across the global wind industry

In 2026, researchers modelled recycling centres for Australia’s future wind blade waste. Years later, circular solutions are being explored across the global wind industry. The issue is linked to the growth of wind power and the number of turbines that will reach the end of their operating lives. Wind turbines use composite materials, especially glass fibre-reinforced plastics (GFRP) and carbon fibre-reinforced plastics (CFRP). Managing these materials requires collection, transport, treatment and reuse systems. The research on Australia examines how recycling centres can be established over time instead of opening all facilities at once. The model considers when wind turbine blades become waste, where the waste is generated and how much recycling capacity is required.

Why wind blade waste is becoming a concern?

Wind energy uses the kinetic energy of wind to generate electricity. Its use has increased as countries expand renewable power generation. According to the International Renewable Energy Agency (IRENA), wind energy is expected to account for nearly 30% of total electricity capacity worldwide by 2030 and 90% by 2050.


This expansion also requires materials. Wind farms commissioned during the past two decades are moving closer to the end of their operating lives. This means more turbine components will enter waste streams. Research by Liu and Barlow projected that global wind farms could generate more than 2 million tonnes of waste each year by 2050.

Australia is also preparing for an increase in wind capacity. The Australian Energy Market Operator has projected wind capacity of 42 GW by 2030, with capacity moving towards 57 GW by 2050 under the country's net-zero pathway. The increase in capacity means more turbines will eventually require decommissioning and waste management.

What makes turbine blades difficult to recycle?

Wind turbine blades are mainly made from fibre-reinforced polymer composites. GFRP accounts for most blade mass, while CFRP is used in some structural components. CFRP can help reduce weight and support larger rotor diameters. However, GFRP and CFRP require different recycling approaches.

Traditional options include incineration and mechanical recycling. Research has identified limits in both methods. They may not recover the full value of the material, may not handle future national waste volumes and can create environmental concerns.

The economic case also differs between materials. Recycled glass fibre has faced limited secondary-market value. This has affected the economics of large-scale GFRP recycling. CFRP has received more attention because recovered carbon fibres have a higher value. New approaches are also being examined. GFRP waste can potentially be converted into products such as geopolymer concrete and silicon carbide.

In 2026, researchers modelled recycling centres for Australia’s future wind blade waste

The Australian study uses a time-dependent reverse logistics model. It examines the collection and movement of wind turbine blade waste from wind farms to recycling centres. The model uses mixed-integer linear programming, or MILP, to identify decisions related to facility locations, opening times, capacity, transportation and operating costs.

The research considers three recycling scenarios:

• Scenario 1: Full recycling of 100% of CFRP blades.
• Scenario 2: Full upcycling of 100% of GFRP blades.
• Scenario 3: Partial upcycling of 20% of hybrid blades.

The model also considers recycling revenue and the landfill costs that can be avoided when materials are recovered. The study found that six recycling centres, each with an annual capacity of 2,000 tonnes, could manage more than 102 kilotonnes of blade composite waste by 2050 under Scenario 1.

Under this scenario, the total system cost was estimated at AU$120 million. The net benefit was AU$250.4 million. The economic results changed under the upcycling scenarios. Scenario 2 produced a net benefit of AU$935.3 million using six recycling centres. Scenario 3 produced a net benefit of AU$131 million using one recycling centre. These results show why blade composition and the selected treatment method matter when planning recycling infrastructure.

How reverse logistics can change recycling planning?

Reverse logistics refers to the collection, movement and processing of materials after their original use. Earlier research used MILP models to examine wind turbine end-of-life networks in Europe. Cinar and Yildirim proposed a model in 2017 to identify recycling and remanufacturing centre locations while reducing transportation and operating costs.

Cinar later examined material recovery and the relationship between operating costs and carbon emissions. The work also considered measures such as carbon credits and carbon caps. Research in Europe has also examined GFRP and CFRP waste. Sommer and colleagues studied waste volumes, facility planning, secondary markets and the effects of recycling regulations.

Other studies examined mechanical recycling of blade waste and the design of reverse supply networks for Europe in 2020 and 2050. Later research examined thermal recycling because mechanical recycling was not considered a long-term solution for all composite waste. Studies have also used centre-of-gravity methods, complexity theory and K-Means algorithms to identify locations for waste management infrastructure.

Why timing matters for recycling centres?

Many earlier reverse logistics models are static or quasi-static. They use waste volumes for a representative period rather than modelling exactly when waste becomes available. This can create a planning problem.

A recycling centre may be built before enough waste exists to use its capacity. At the same time, delaying investment for too long could leave insufficient capacity when several wind farms are decommissioned. The Australian model therefore considers both time and location. Recycling centres can be opened in stages as blade waste becomes available.

This approach can help decision-makers examine:

• When a recycling centre should open.
• Where the centre should be located.
• How much capacity should be installed.
• Which wind farms should supply each centre.
• How transportation affects total costs.
• How recycling revenue changes the economics.
• How landfill costs affect the decision.

Circular economy solutions are expanding

A circular economy aims to keep materials in use through reuse, repair, repurposing and recycling instead of sending them directly to disposal. For wind turbine blades, several approaches are being examined.

Chemical recycling: Pyrolysis uses heat to break down composite materials. Solvolysis uses chemical solvents to dissolve resin systems. These processes can recover glass and carbon fibres without fully combusting the material.

Recyclable resins: Researchers, including work at Michigan State University, have developed resin systems designed to break down after service. Recovered materials could be used in products such as car parts, windows and other consumer goods.

Upcycling: Shredded composite material can be incorporated into products such as sneaker soles, highway construction barriers and structural reinforcement beams.

These approaches create possible routes for blade materials after their service life.

Australia’s projected blade waste

Australia could accumulate about 15,000 tonnes of blade composite waste by 2034, with annual generation reaching as much as 4,000 tonnes. The local blade recycling market is expected to expand as circular economy policies place limits on landfill disposal and support local material recovery infrastructure.

The study focuses on a 25-year planning period and considers Australian wind farms commissioned up to 2024. The optimisation model was implemented in MATLAB R2020a using YALMIP and the Gurobi solver on a system using an Intel Core i5-10,310 processor.

The research also identifies several cost factors that influence the network. These include transportation, recycling centre operations, capital investment, recycling revenue and avoided disposal costs.

What earlier studies found about circular wind blade management?

Research by Mativenga and colleagues examined circular economy practices in composite manufacturing in the UK and South Africa. A six-question Likert-scale survey identified cost reduction as the main driver reported for advancing circular practices.

Sultan and colleagues later developed mathematical approaches to determine waste volumes, distribution and possible facility locations. Mohamed Sultan and Mativenga combined supply chain complexity, centre-of-gravity analysis and K-Means methods to plan multiple recycling centres while reducing greenhouse gas emissions.

A 2024 review by Lund and Madsen identified four research themes and 16 topics concerning wind turbine blade waste. The review highlighted recycling technologies and material properties but also identified gaps in empirical data from end-of-life blade projects and knowledge of the full value chain, including logistics, processing and environmental effects.

What the research means for future wind farms?

The study argues that recycling infrastructure needs to account for the different materials used in turbine blades and the different ways those materials can be treated. Manufacturers including Vestas, Owens Corning and RWE have been working towards recyclable blade technologies, with many targets set around 2030.

The research questions also cover four areas: how to build a cost-efficient network for time-dependent waste, when and where centres should open, how blade composition affects economic results, and which costs have the greatest effect on network design.

The findings provide a framework for policymakers and wind industry companies planning end-of-life systems. The approach links waste generation, infrastructure timing, transportation and recycling revenues rather than treating the entire future waste volume as available at one time.