E-66-Windkraftanlage Südkronsberg, Wind turbine with observation deck in Kronsberg, Hanover, Germany.

The E-66-Windkraftanlage Südkronsberg is an Enercon E-66 turbine on the Kronsberg in Hanover's Bemerode district, with a 64.8 m hub height and a 66 m rotor diameter. Its nacelle is rated at 1.5 megawatts, and a glazed observation deck sits at 60 m, reached by a 300-step spiral staircase inside the tower.

This turbine was built for the Expo 2000 world fair to demonstrate how renewable power generation works. Nearby, the Herrmannsdorfer Landwerkstätten ran an organic farm powered by sustainable sources until the early 2000s.

The turbine represents Germany's approach to renewable energy by making power generation visible and accessible to the public rather than hidden away. It demonstrates how industrial infrastructure can become a place where visitors connect with the energy transition happening in their country.

The glazed observation deck sits 60 metres up and is reached only by a 300-step spiral staircase inside the tower; there is no lift. The stairs are narrow, so the climb suits visitors who are steady on their feet and comfortable in confined spaces.

The turbine shares its location with another turbine of the Enron Wind type, together forming part of a demonstration energy project from the Expo 2000 period. This pairing reflects how such renewable energy showcases were arranged as attractions at major world fairs.