Myth:
Wind turbine blades only last between 3 and 7 years, rendering wind power expensive and ineffective in fighting climate change.
Fact:
Studies show that wind turbine blades last between 17 and 25 years on average. The industry standard is 20 years. The world’s oldest wind turbine, in the town of Tvind in Denmark, has been generating electricity continuously since 1978! At 53 metres high and with a wing diameter of 54 metres, it produces enough electricity to power 1,000 homes. [To put this in context, a modern offshore turbine is five times as tall, has twice the wing diameter and can power 16,000 homes.]
A wind turbine blade being lifted to the turbine hub. [Source: Flickr]
Sources:
Nik Dirga, “Wind turbine lifespan claim generates misinformation,” AAP, 13/10/22
Giles Parkinson, “One of Australia’s oldest wind farms extends life to 30 years,” Renew Economy, 7/6/24
Rachel Williamson, “Australia’s oldest wind turbine faces final spin, will be dismantled after nearly 40 years or service,” Renew Economy, 30/9/24
Alexis Phillips, “How Long Do Wind Turbines Last? Average Lifespan Explained,” Energy Follower, 9/9/26. https://energyfollower.com/how-long-do-wind-turbines-last/
Sophie Vorrath, “One of Australia’s oldest wind farms given new lease on life as turbines ‘repowered’ after storm damage,” Renew Economy, 13/10/26