After creating the world’s first offshore wind turbine with redesigned blades and rotor in Augustat Siemens Gamesa just launched its RecyclableBlade for offshore wind projects.

The Siemens Gamesa RecyclableBlade for offshore production was commissioned in September 2021 and installed at the 342 MW Kaskasi offshore wind farm in Germany in July 2022.

Siemens Gamesa has yet to say in what sizes and when the recyclable land blades will be available, nor how many recyclable shore blades it has produced so far.

The Spanish-German wind giant calls its blade recycling technology RecyclableBlade. Wind turbine blades are made of a number of materials embedded in resin. Siemens games explains:

Separation of resin, fiberglass and wood, among others, is achieved using a mild acid solution. The materials can then go into the circular economy, creating new products, such as suitcases or flat screen cases, without having to use more raw materials.

Photo: Siemens Gamesa

Siemens Gamesa says it plans to have all wind turbine blades completely recyclable by 2030, and all wind turbines by 2040.

This technology needs to be deployed quickly as wind power grows worldwide: according to 2021 study Abrin Cooperman, a wind energy analyst at the National Renewable Energy Laboratory, and colleagues titled “Wind Turbine Blade Material in the United States: Quantity, Cost, and End-of-Life Options”:

Based on a 20-year turbine life, the cumulative blade waste in 2050 is approximately 2.2 million tons. This value is approximately 1% of the remaining landfill capacity by volume or 0.2% by mass.

In Europe, Siemens Gamesa is working with industry organization WindEurope and other major industry players, calling for a Europe-wide ban on landfilling of blades.

Read more: The world’s largest offshore wind farm is now operating at full capacity

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