2. New concept Shaft Power Plant (Configuration)
The basic concept of the “Shaft Power Plant” aims to arrange the entire turbine generator unit directly in a “concrete-box” i.e. shaft or in shafts, in order to avoid a classic intake and return with all structural and ecological disadvantages (Fig. 2). As a result, the system requires only a small building volume and has particular ecological advantages, because in the hydraulic design a convincing fish protection and fish descent could be integrated. With the help of a physical model and a prototype system, all components of the building were dimensioned and the system technology developed at the Obernach Research Institute of the TUM.