Das Projekt "Construction of a SHP station with an innovative compact kaplan bulb turbine with 5 blade Runner" wird vom Umweltbundesamt gefördert und von Mammut Electric GmbH durchgeführt. Objective: Construction of the Wutöschingen small hydropower p1ant with an innovative type of compact Kaplan bulb turbine. The turbine is fitted with a 5 blade runner and will be constructed in this size for the first time. This solution will allow the use of only 1 set of machinery compared to 2 in a conventional setup and still have a large discharge capacity at very high efficiency rates under low-head conditions down to the lowest partial load. General Information: The Wutöschingen small hydro power plant was initially planned as a diversion type run-of-river plant which utilizes the seasonally fluctuating discharges of the river Wutach, a tributary to the Upper Rhine. For environmental reasons the plant has now been redesigned as a river power station without diversion race. Performance data will remain unchanged. The plant is situated in the state of Baden-Württemberg in the southwest of the Federal Republic of Germany. The barrage of the river is of the inflatable weir type. The plant is designed to utilize the potential unused so far by incorporating an innovative five blade runner compact Kaplan bulb turbine. This new turbine, which will be used for the first time in this particular size, will permit the use of flows up to 12 m3/s with highest efficiency rates at a head of only 5,1 m and the annual production of 3,2 GWh. The plant will be operated fully automatically and will feed the electricity produced into the public grid of the Badenwerke AG. The turbine consists of an axial flow runner with innovated runner geometry and is equipped with a speed increaser with bevel drive, which transmits the rotation energy to the generator. Safety and life span of runner and guide vanes are substantially increased by using water lubrication bearing technology and improved materials. For ecological reasons the power house is perfectly fitted into the surrounding landscape. By using only 1 set of machinery, as compared to 2 in a conventional setup, the result will be a substantially higher profitability by cutting construction costs by 20 to 30 per cent . Specifications: h=5.1 m, Q=12.0 m3/s, PA = 528 kW. The average energy production costs are calculated to 0.054 ECU/kWh.