Ryburg-Schwörstadt power plant
| Ryburg-Schwörstadt AG power plant | |
|---|---|
| legal form | Corporation |
| founding | 1926 |
| Seat | Rheinfelden , Switzerland |
| management | Rolf W. Mathis ( Chairman of the Board of Directors ) |
| Branch | power supply |
The Ryburg-Schwörstadt power plant is a Swiss public limited company based in Rheinfelden in the canton of Aargau . It was founded on October 21, 1926. The purpose of the company is to utilize the hydropower of the Rhine near Riburg and Schwörstadt to generate electrical energy. To this end, it operates the Ryburg-Schwörstadt run-of-river power plant of the same name, located around 21 kilometers upstream from Basel . With an installed capacity of 120 MW, the largest hydropower plant on the Upper Rhine is located on the border between Germany and Switzerland .
Holdings
The following companies are involved in the Ryburg-Schwörstadt AG power plant:
- EnBW (25%)
- Canton of Aargau (23%)
- Axpo (13.5%)
- Alpiq (13.5%)
- Energiedienst AG (13%)
- Evonik Degussa (12%)
power plant
| Ryburg-Schwörstadt power plant | ||
|---|---|---|
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| location | ||
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| Coordinates , ( CH ) | 47 ° 35 '10 " N , 7 ° 50' 1" O ( 629 706 / 270 679 ) | |
| country |
 Switzerland
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| place | Rheinfelden AG , Schwörstadt | |
| Waters | Rhine ( Upper Rhine ) | |
| Height upstream | 280.7 m above sea level M. | |
| power plant | ||
| owner | EnBW , Nordostschweizerische Kraftwerke , Atel Holding , Energiedienst Holding | |
| operator | Ryburg-Schwörstadt AG power plant | |
| Start of planning | 1926 (company foundation) | |
| construction time | 1927-1931 | |
| technology | ||
| Bottleneck performance | 120 megawatts | |
| Average height of fall |
8.1 to 12.1 m | |
| Expansion flow | 1460 m³ / s | |
| Standard work capacity | 760 million kWh / year | |
| Turbines | 4 Kaplan turbines | |
| Generators | 4 three-phase generators | |
| Others | ||
The power plant was designed by Motor-Columbus AG based on the plans of the Pfister brothers and built between 1926 and 1931.
location
The Ryburg-Schwörstadt power plant is located around 21 kilometers upstream from Basel. It lies in the middle of the state border between Germany and Switzerland in the area of the city of Rheinfelden (Switzerland) and the municipality of Schwörstadt (Germany). The water surface immediately above the weir is on average 280.7 m above sea level. M. , the one below the weir at 269.3 m above sea level. M. The net gradient varies between 8.1 and 12.1 meters (other information: useful gradient 7.6 to 12.5 m). The retention length of the Rhine is around 13.5 kilometers. The underwater area of the Ryburg-Schwörstadt power plant merges with the upper water area of the new Rheinfelden power plant .
There are several nature reserves in the dam area of the power plant . The Bachtele nature reserve is located around 550 meters above the weir at the confluence of the Möhlinbach into the Rhine . A few kilometers upstream on the southern bank of the Rhine lies the Haumättli floodplain area . About six kilometers above the power plant, where the Wehra flows into the Rhine, is the protected weir bay . The passenger ship “Trompeter von Säckingen” runs between the Ryburg-Schwörstadt power plant and the Bad Säckingen power plant . The Möhlin boat harbor and Schwörstadt's Rhine swimming pool are also located in the storage area.
Pedestrians and cyclists can use the power station to cross the border between Germany and Switzerland. Boats up to a weight of 1.5 tons can pass the power plant on a roller conveyor by means of a cable. A single-axle wagon with rubber tires is available for transport over the ramp, which is inclined up to 15%.
Technical specifications
The Ryburg-Schwörstadt power plant was built between 1927 and 1931. It was one of the first hydropower plants on the Rhine to have all the features of a modern river power plant. The low-pressure drive was built across the river and has four powerful Kaplan turbines with a total installed capacity of 120 megawatts. This means that the power plant is still the most powerful hydropower plant on the Upper Rhine today . In order to keep the storage target constant, a 111 meter long weir with four movable flaps (weir openings) was installed. As a result of this measure, the character of the Rhine changed significantly on this section of the river, as the gradient of the water was very much reduced. A modernization took place between 1977 and 1984.
The weir is on the Swiss side of the river, while the machine hall was built on the Baden side. The boat ramp is on the Swiss bank. The fish ladder was built between the weir and the machine house. The four openings of the weir have a clear width of 24 meters and are closed by gates with a height of 12 meters. The nacelle has four turbine chambers with a center distance of 27 meters. The turbine chambers can be sealed off with the help of emergency closures. On the upstream side, this is done with an emergency closure panel, which is located behind the rake with a bar width of 15 cm. The emergency locks are built into the suction pipe on the underwater side. During the construction of four were Kaplan turbines installed by the vertical shaft directly with the three-phase - generator with a nominal capacity of 32,500 kVA are connected. These supply a three-phase voltage of 10,500 volts and 50 Hertz and rotate 75 times per minute. The machine voltage is increased in an open-air system with the help of transformers (at start-up the output voltage was 45, 110 and 145 kilovolts).
The power plant has an average annual production of 760 gigawatt hours (GWh). Electricity production is split between Germany and Switzerland.
In February 2010, the power plant's concession expired after 80 years. In February 2007, the application to extend the license by 60 years was submitted to the authorities on both sides of the Rhine. The Federal Department for the Environment, Transport, Energy and Communication (DETEC) has issued the Ryburg-Schwörstadt AG power plant a tolerance for continued operation until the end of 2010 in order to clarify any open questions during this time. Continued operation is only possible with additional environmental requirements , which will include an improved fish route in the form of a near-natural stream , a new flat bank at the Mumpf campsite and the reopening of a branch of the Aue Wallbach. As a further condition for a new concession for the Canton of Aargau also called for one of the existing operators reversion waiver compensation . This took the form of a participation of the Canton of Aargau in the operating company from March 1, 2010 in the amount of 23%, corresponding to a resale value of at least CHF 250 million (as of 2010). The canton receives around 166 gigawatt hours of the energy produced by the power plant at production costs every year. Energiedienst Holding AG in Laufenburg was awarded the contract for the resale of this electricity, which brings annual income of around six million francs (as of 2010) .
See also
- List of hydropower plants in Germany
- Video about the construction of the Ryburg-Schwörstadt hydropower plant in 1928 [1]
literature
- Robert Haas: The large Ryburg-Schwörstadt power plant on the Rhine. In: Journal of the Association of German Engineers , Volume 72, No. 3 (January 21, 1928), pp. 81–83.
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From the Ryburg-Schwörstadt Rhine power plant . In: Schweizerische Bauzeitung .
- Part 1 . tape 92 , no. 15 , 1928, pp. 181-186 , doi : 10.5169 / seals-42585 .
- Part 2 . tape 96 , no. 13 , 1930, p. 157–159 , doi : 10.5169 / seals-44061 .
Web links
Individual evidence
- ↑ Small ships on the Upper Rhine ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. , P. 3. As of September 28, 2008
- ↑ Swiss Water Management Association and Association of Swiss Electricity Companies (ed.): Guide through the Swiss water and electricity industry, Volume 2, 1949, pp. 648–649
- ↑ www.axpo.ch . As of September 28, 2008
- ↑ www.krsag.ch . Official website
- ↑ Ryburg-Schwörstadt power plant with Aargau participation , fricktal24.ch, March 13, 2010
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The next bridge upriver: Fridolinsbrücke |
Bridges over the Rhine |
The next bridge downstream: footbridge at the new Rheinfelden hydropower station |