![Figure 1. Visit in the warehouse Dieter Fries Fig 1](/images/stories/Features/2020Features/MarchAprilImages2020/Dieter-Fries-Fig-1.jpg)
A growing number of wind turbines are operating in the second or third decade of their lifetime. As an owner of 20-year-old Micon turbines in Germany I would like to describe the possibilities and solutions for operating these wind turbines cost-effectively with the current low market prices for electricity supplied by wind turbines in Northern Europe.
By Dieter Fries, Ingenieurbüro Fries, and Dirk Nielsen, Wind Nielsen, Germany