Repurposing Turbine Blades into Bike Shelters

Day 331 – Back on Day 167, I wrote about the waste related to wind energy. I mentioned a study by University of Cambridge (2017) that stated that turbine blades are set to account for 43 million tons of waste by 2050. Most blades end up in landfills, because they are hard to recycle. The article went on to say that there are companies coming out with 100% recyclable blades.

However, what do we do with all the ones currently being used today that are not recyclable?

Well, Denmark has figured out a way to deal with the waste produced by wind energy.

Wind energy makes up 40% of the energy in Denmark and they hope to increase that to 70% by 2030. With the lifespan of a non-biodegradable wind turbine blade around 20 years, the Danish government assigned the recycling task to several companies. They have come up with some very creative ways to deal with these giant structures and keep them out of the landfill.

Two ideas that have been discussed in Denmark are using the blades as bike shelters and footbridges. You can already find bike shelters in parts of the country. Considering there are 675,000 bicycles and just 120,000 cars in just Copenhagen alone (bikes outnumber cars by more than five-to-one), you can imagine there is great need to keep all those bikes protected from the elements.

In Ireland, they are working to reuse old blades in skate parks, stadium bleachers, sound barriers and electric towers.

Every country needs to take a look at the waste they are producing and devise a plan to both reduce and reuse what they have. Dumping it in a whole in the ground, in our waterways or incinerating it, is no longer an option.

Tomorrow, another great option for sustainable straws and cutlery.

Even Wind Energy has Waste

Day 167 – When we think of renewable energy sources, we usually think of clean, waste free options. Sadly, even sustainable energy sources can create waste. According to a study by University of Cambridge (2017), turbine blades are set to account for 43 million tons of waste by 2050. Most blades end up in landfills, because they are hard to recycle.

Thankfully, wind turbine maker Vestas, unveiled new technology which it says enables wind turbine blades to be fully recycled, avoiding the dumping of old blades. Using the new technology the glass or carbon fiber is separated from the resin and then chemicals further separate the resin into base materials, that are “similar to virgin materials” that can then be used for construction of new blades. 

The project aims to develop the technology for industrial scale production within three years and also sees potential for the technology to be used for airplane and car components.

If we are to fully embrace a world where renewable energy sources are common place, we need to start finding ways to recycle all the materials involved in harnessing these sources of energy. Sending turbine blades and solar panels to the landfill will not help our situation.

Tomorrow, checking to see if your alderperson is doing his/her part in protecting the environment.