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Planning a Small Hydro-Power Plant in Lübeck (GERMANY) –Who Owns the Water?

Author(s): M. Oertel

Linked Author(s): Mario Oertel

Keywords: No keywords

Abstract: ABSTRACT: Nowadays, renewable energy is essential to reduce CO2 emission and to replace non-eco-friendly power plants. Therefore, also small hydro-power plants can be constructed at flow systems with small discharges. The city of Lübeck is located near the Baltic Sea in the Northern part of Germany. The river Trave surrounds the historic city center. Several hundred years ago another river (Wakenitz) was directly connected with the Trave flow system. But with beginning of the 12th century a continuous anthropogenic adaption of both river systems lead to the present situation, which also include a national waterway. Trave and Wakenitz are arranged according to a water level difference of approximately 3.5 m. Via a culvert connection system several hundreds of liters per second are continuously available. Hence, a hydro-power plant was setup which produces small amounts of annual energy. Due to the European Water Framework Directive (EU-WFD) both river systems had to be connected with a fish-friendly open channel. But in consequence, less discharge could be guaranteed for the existing hydro-power plant. Hence, a new small hydro-power plant was investigated–in form of the Archimedes screw. Nevertheless, a large area of conflict has been identified: who owns the water? A local energy provider operates the existing hydro-power plant and the water passes a connected lake system, thus the water quality might be affected. Hence, the present paper deals with an engineering solution to produce renewable energy located next to the planned fish step and takes into account various conflict parties.

DOI:

Year: 2016

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