Alfredstal power station

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Alfredstal power station
Alfredstal power plant with horizontal rake
Alfredstal power plant with horizontal rake
Alfredstal power plant (Baden-Württemberg)
Alfredstal power station
Coordinates 48 ° 14 '31 "  N , 9 ° 34' 38"  E Coordinates: 48 ° 14 '31 "  N , 9 ° 34' 38"  E
country Germany , Baden-Wuerttemberg
place Obermarchtal
Waters Danube
power plant
operator E-Werk Alfredstal GbR
Start of operation 1903
Bottleneck performance 0.45 megawatts
height of fall
3 m
Expansion flow 24 m³ / s
Standard work capacity 2.5 million kWh / year
Turbines 3
Generators 3

The Alfredstal hydropower plant in Obermarchtal was built in 1903 at the foot of the Obermarchtal Premonstratensian Abbey. It was originally used to generate energy for a cement factory in Rechtenstein . After it went bankrupt in 1904 and burned down in the same year, it was taken over in 1911 by Alfred Kraemer, the then owner of the wood pulp factory in Rechtenstein. Today it is operated by the Alfredstal GbR hydropower plant and supplies around 2.5 million kilowatt hours of electrical energy a year. The hydropower plant is classified as a technical cultural monument.


inside view

The hydropower plant begins at a streak weir with a length of 95 meters. The water then flows to the power plant in an approximately 800 meter long canal. A floating debris screen in a horizontal construction keeps debris away. The water then flows through three Francis turbines with a flow rate of around 9 m³ / s each. The height of fall is up to three meters and the three synchronous generators generate a total of up to 440 kW. Originally, the power of the three vertical turbine shafts was transferred to the horizontal generator shafts via wooden comb wheels. After damage to two of the three machines in 2004, the destroyed machine sets were modernized. The power plant has always been able to operate on an island so that consumers can continue to be supplied with electrical energy in the event of a grid failure.


A rough ramp at the weir system serves as a bypass water for fish .

Web links

Individual evidence

  1. ^ A b Elmar Reitter: Ecology and small hydropower using the example of the Alfredstal hydropower plant in Obermarchtal on the Danube. (No longer available online.) April 25, 2006, archived from the original on September 23, 2015 ; accessed on February 11, 2016 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot /