Application of circular economic principles within Scotland’s offshore wind sector could cut carbon emissions by a third, according to a report by ORE Catapult.
The “End of Life Materials Mapping for Offshore Wind in Scotland” report, produced by ORE Catapult, in partnership with Zero Waste Scotland, has identified the vast quantity of materials needed to develop the Scottish offshore wind market as well as approaches to minimise resources.
The report highlights how these materials can be refurbished, remanufactured, and recycled from wind turbine decommissioning, to reduce waste and generate economic opportunities.
The report found that investment in a circular economy is “essential to recycling wind turbines domestically and meet the target of 60% UK content for future offshore wind developments”.
It highlighted that sustainability within the sector will also require a variety of remanufacturing and reprocessing solutions for every wind turbine component, as well as recycling.
The study predicts the creation of up to 20,000 jobs by 2030 with the development of a full UK circular economy supply chain, including a wide variety of recycling processes, and identifies a 34% carbon saving if new turbines are manufactured using recycled content.
The report examines the offshore wind sector up to 2050 and sets out the huge supply chain opportunity created by the volume of projected growth across Scotland, following the Scottish Government target to increase capacity to 11GW of offshore wind in Scotland by 2030, the ScotWind leasing round, and the Innovation and Targeted Oil and Gas (INTOG) leasing process.
If all proposed projects in the pipeline were successful, Scotland’s offshore wind capacity would reach almost 40GW by 2033.
Andrew Macdonald, Director of Offshore Wind Development and Operations at ORE Catapult, said: “Collaboration between offshore wind and other sectors will be crucial to accelerating circular economy technologies and supply chains.
“It is an exciting prospect to take this forward with industry partners, such as Zero Waste Scotland, and show how the wind turbine, the workhorse of the clean energy revolution, will take its next steps towards circularity.”
Offshore wind decommissioning in Scotland could generate 1.5 million – 2.4 million tonnes of materials by 2050. It is estimated that up to 492 turbines will be decommissioned in Scotland increasing by an additional 1,718 by 2065.
However, it was also calculated that the growth in offshore wind will require 14.7 million tonnes of steel, 8.36 million tonnes of concrete and 1.54 million tonnes of ductile iron casting by 2050.
Other consumables required include glass and carbon fibre, neodymium, and copper.
The Scottish Government is consulting on proposals to develop Scotland’s circular economy until 22 August 2022.