Representation of recycled wind turbine blades converted into an interactive children’s playground featuring tunnels, climbing structures, and towering slides. Image Credits: Google Gemini. In Rotterdam, five retired blades were given a new use instead of being sent to a landfill or scrap yard. The project offered an early example of creative reuse for a difficult industrial waste material. According to a study published in Sustainability, the Wikado playground in Rotterdam was designed by the architectural practice Superuse Studios, formerly known as 2012Architecten, for the Kinderparadijs Meidoorn foundation. The playground was developed on the site of an existing play area in Rotterdam and officially opened on October 10, 2008. The researchers describe Wikado as an example of how discarded wind-turbine blades and other reused materials can be incorporated into a new public space.From turbine blades to playground structuresHowever, the discarded wind turbine blades were not used simply as construction material. Instead, their distinctive shape and hollow structure became an important part of the playground’s design. Five blades were modified to create a series of play structures, with their larger and stronger lower sections used to form four towers, while other sections were transformed into tunnels. These structures were then connected with climbing nets, slides and other play features, turning what had once been industrial components into an interconnected play space. One blade was kept largely intact and used as a large tunnel, giving children a space to climb through and explore.The reuse extended beyond the blades themselves. Existing paving stones and some play equipment were retained, further reducing the need for new materials. In this way, the designers worked with what was already available on the site rather than replacing everything with newly manufactured elements. According to Superuse Studios, reusing the five discarded wind-turbine blades reduced the project’s carbon emissions by about 90% compared with a conventional playground.The challenge of giving old blades a second lifeAccording to research published in Renewable and Sustainable Energy Reviews, wind turbine blades are largely made from glass-fibre-reinforced plastic composites, combining glass fibres with polymer resins. These materials give blades the strength and durability needed to withstand years of mechanical and environmental stress, but their complex composite structure also makes them difficult to recycle at the end of their service life. The review identifies turbine blades as a particular recycling challenge because their different materials are difficult to separate and recover efficiently.This recycling difficulty also shaped the approach taken at Wikado. Rather than breaking the blades down into separate materials, the designers reused much of the original structure and adapted it for a different purpose. For large composite structures such as turbine blades, this can avoid the need to dismantle the material before it is reused. However, adapting a turbine blade for a playground also requires attention to how the material performs in a setting where children climb, touch and play on the structures. A blade designed for use on a wind turbine is not necessarily suited to these conditions without appropriate modification and maintenance.That difference became apparent when the Wikado playground was inspected after three years of use. A study published in Sustainability found that some sections of the reused blades had become brittle, exposing glass fibres that could be sharp enough to injure skin. Researchers also observed damage to the coating and exposure of other materials in areas accessible to children. These findings did not rule out the use of old turbine blades in playgrounds, but they highlighted the need to consider how the material changes over time. The researchers concluded that reused rotor blades can be incorporated into playground structures, provided appropriate safety measures, regular inspections and maintenance are in place.
Wind Turbine Blades in a laydown yard. Image Credits: Wikimedia Commons.
An idea that travelled beyond RotterdamThe concept may have been influential because it showed how difficult-to-dispose-of waste could be repurposed. The blades’ unusual dimensions and aerodynamic forms became useful design features when they were retained as whole components. Superuse later introduced another Blade-Made playground in Terneuzen, again using retired turbine blades as major structural elements. The project incorporated climbing equipment, ropes, ladders and a slide, continuing the idea that old industrial components can be redesigned rather than immediately discarded.Wikado was not intended to solve the wind industry’s growing blade-waste problem on its own. A playground can use only a handful of retired blades, while the renewable-energy sector will eventually have to deal with thousands of them. But the Rotterdam project offered a different way of thinking about what happens when large composite structures reach the end of their working lives. Instead of immediately breaking them down for material recovery, designers asked whether the structures could be reused largely in their original form.