Pumpspeicherkraftwerk Happurg, Pumped-storage power station in Happurg, Germany

Pumpspeicherkraftwerk Happurg is a pumped-storage power station in Happurg, Germany. It consists of an upper reservoir on the hill and a lower reservoir in the valley, connected by underground pipes and a machine hall.

The plant was built in the 1920s to store excess electricity from the region. After decades of service, it was shut down in the 2000s, and since then efforts have focused on possible reuse and preservation of the site.

The upper reservoir has become a local spot for walks, and on weekends you may see families and cyclists pausing to look over the water. Information boards near the path explain how the plant works, and school groups sometimes visit to learn about energy storage.

The site is best reached on foot via marked trails from Happurg, and sturdy shoes are recommended for the uneven ground. Visitors can walk around the reservoirs and see the outer structures, but the underground parts are not open to the public.

The upper reservoir sits on a hill that offers a wide view over the surrounding countryside, a detail many visitors miss. The plant's pipes are buried deep in the ground, so from the surface you only see the reservoirs and a few buildings.