Stroppel power station
| Stroppel power station | |||
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| location | |||
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| Coordinates | 660 367 / 261 625 | ||
| country | Switzerland | ||
| Waters | Limmat | ||
| Data | |||
| Type | River power plant | ||
| Primary energy | Hydropower | ||
| power | 0.95 MW | ||
| Project start | 1869 | ||
| Start of operations | 1908 | ||
| turbine | two Francis turbines , one Kaplan turbine | ||
| Website | http://www.hydroelectra.ch/ | ||
The Stroppel power plant is a run-of-river power plant on the Limmat am Limmatspitz in the Stroppel area of the Untersiggenthal municipality in the canton of Aargau . The small hydropower plant belongs to the company Axpo Kleinwasserkraft AG . The former Stroppel twisting mill is an authentically preserved industrial plant from the early days of the textile industry and is a listed building.
history
From 1868 to 1869, the Zurich sewing thread pioneer Emil Escher-Hotz had a cotton dyeing twisting mill built in Stroppel at the confluence of the Limmat and the Aare. The twisting machines were operated with mechanical water power from the Limmat. In 1906 his heirs sold the company to the Scottish company J. & P. Coats Limited , Glasgow . Between 1907 and 1908 Coats founded the Stroppel AG twisting mill. In 1908 they built a new power plant with two Francis turbines from Rieter and two generators from BBC in order to be able to electrify the textile plant. Today's power station is a flat-roofed building (unplastered sand-lime brick), which consists of a three-chamber turbine house from 1932 and a generator house from 1908 connected to the southwest.
Coats Stroppel AG stopped production in the 1980s (twisting mill 1985), shut down the hydroelectric power station and began trading in merchandise. The historic factory was taken over in 1995 with the power plant from Proma Energie AG, Untersiggenthal.
The two existing machine groups were supplemented in 1997 with a Kaplan turbine in the previously empty third turbine chamber. The original mechanical power transmission (open transmission gears, mechanical governors) was retained.
In 2000, the government council of the canton of Aargau granted the Stroppel power plant in Untersiggenthal a new concession. This enabled Proma Energie AG to gently expand the small power plant so that it can be used economically for another 70 years. With the technical improvement by means of a slight increase in the expansion water volume and the usable gradient by around 0.3 m (increase in the reservoir target), it was possible to increase energy production by around 15%.
The power plant Stroppel has the right 7 / 12 and the power plant Gebenstorf 5 / 12 to take advantage of the Limmat water. The industrial water is diverted from the Limmat into an industrial sewer. The headwater canal on the right bank of the Limmat is formed by a 400 m long weir (middle of the river).
The sensitive location of the power plant in the landscape and floodplain protection area of the moated castle was taken into account with various accompanying ecological measures around the system: In the event of flooding, the operation of the power plant is suspended in order to improve the floodplain dynamics. The old Limmatarm at the Stroppelinsel is traversed again, which means that the underwater canal is networked with the Limmat again.
In 2008, Proma Energie AG handed over its entire hydropower portfolio to Elaqua AG in Glattbrugg (formerly Lorze AG power plants ), then a partner of Axpo AG. In 2011, Elaqua AG became fully owned by Axpo Kleinwasserkraft AG .
For the new operating license of 40 years, a new bypass channel had to be built for the fish pass in 2011. In 2014, the Stroppel small hydropower plant was equipped with two new Francis turbines and generators by Axpo Kleinwasserkraft AG , which allow the turbine to run at up to 33,000 liters per second and generate an output of up to 900 kilowatts.
_IMG_6781.JPG)
Today's production
With the three machine groups, the Stroppel power plant generates an average annual production of around 3.8 GWh and covers the needs of around 800 households. The summer residual water volume in the Limmat reaches around 10 m³ / s when the water is low , together with the power plant in Gibstorf opposite . The two power plants together have a water use of 57 m³ / s.
See also
literature
- Georg Boner: History of the community Untersiggenthal . Untersiggenthal municipality, 1983.
- Walter Wyssling: The development of Swiss electricity companies and their components . Swiss Electrotechnical Association , 1946.
Web links
- Roman Huber: Stroppel-Areal: Here you can feel the inspiration. In: Switzerland on Sunday . August 8, 2009
- Miro Müller, Michael Tobler: Fish can now swim around the danger of the turbines. In: Aargauer Zeitung . 19th July 2013
Individual evidence
- ↑ Axpo Annual Report 2016–2017
- ↑ Online inventory of the Cantonal Preservation of Monuments Aargau
- ↑ Guide to the Limmat-Wasserschloss industrial culture trail : Stroppel factory and power station (PDF; 7.6 MB)
- ^ Canton of Aargau: Stroppel power station
- ↑ Swiss small hydro 1/2014: The small power plant
