Besucherwindanlage Windfang, Wind turbine with integrated observation platform in Aachen.

The Besucherwindanlage Windfang is a 1999 Enercon E-66 wind turbine in the Euro Wind Park near Vetschau, west of Aachen. Its tower has a 66 m hub height and 1.5 MW output. Instead of ladders, a spiral staircase leads to a glazed observation gondola at 63 m.

The turbine grew from a 1995 energy project called 'Zukunftsenergien Aachen-Heerlen' that aimed to plan renewable energy supply for the Avantis business district. Until 2023, visitors could climb inside to experience wind power generation firsthand.

The name Windfang comes from a competition among pupils in Aachen, who proposed it for the turbine. The tower stands in the Euro Wind Park near Vetschau, where nine turbines of 1.5 to 1.8 MW each generate electricity; Windfang itself is an Enercon E-66 with 1.5 MW. Visitors who climbed the spiral staircase saw the machine room and the glazed gondola at 63 m.

Access to the platform required advance booking and understanding that the installation is aging. Note that guided tours and climbing inside the tower are no longer available as of 2023, though the turbine itself remains visible and can be viewed from the exterior.

The name Windfang was chosen in a competition among school pupils from Aachen, so the tower carries a name coined locally rather than by the operator. Inside, a spiral staircase replaces the ladders usual in such towers, running up to the glazed viewing gondola at 63 metres.