Bodendorf power plant

Bodendorf-Mur run-of-river power plant
location
Coordinates	47 ° 6 '27 "  N , 14 ° 3' 54"  E Coordinates: 47 ° 6 '27 "  N , 14 ° 3' 54"  E
place	Bodendorf
Waters	Mur
Kilometers of water	km 387.73
Height upstream	853  m above sea level A.
power plant
operator	Hydro Power Association
construction time	1979-1982
Start of operation	1981
technology
Bottleneck performance	7 megawatts
Turbines	1 Kaplan turbine
Others
Energy fed in per year	34 GWh

The Bodendorf power plant is a run / storage power plant network on the Mur in Bodendorf , the municipality of Sankt Georgen am Kreischberg and in the municipality of Stadl-Predlitz , in Styria . It is operated by Verbund AG . It comprises the Bodendorf-Mur run-of-river power plant (low pressure level) and the Bodendorf-Paal storage power plant (medium pressure level)

location

The power plant is located on the upper Mur , a little above Murau (river kilometer 387.7). The Mur dam on both sides belongs to the Bodendorf cadastral community. In addition to the Mur itself, it also includes the water of the Paalbach and the Turrachbach , the two larger right tributaries of the Mur, which come from the Gurktal Alps . The water is fed in via an approximately 20 kilometer long drive shaft .

Bodendorf forms the top tier of the power plants in the Styrian Murtal. The underwater of the power plant goes largely directly into the storage space of the St. Georgen power plant .

history

The power plant was built between 1979 and 1982 by the Steirische Wasserkraft- und Elektrizitäts-AG  (STEWEAG), with approval under water law on December 13, 1978. The first headrace tunnel was opened on June 8, 1979. The power plant went into operation in 1981, the storage plant in August 1982. Originally, a three-stage expansion between Stadl and Murau was planned, but only Bodendorf and St. Georgen were implemented. In 2002, Energie Steiermark (ESTAG), the state's energy holding company created in 1996, withdrew from direct electricity production , and the power plant was transferred to Verbund Hydro Power , the hydropower subsidiary of the Austria-wide Verbund AG, in exchange for holding shares.

In 2006 and 2012, the regular flushing of the storage space , which was also criticized in the course of the resistance against the Mur power plant in Graz , was scientifically examined. The original volume of the storage space was 900,000 m³, of which a good ² ⁄ _{3 were} filled with floating sediments by 1994 , so flushing every two to three years became necessary from the mid-1990s. The average silting up is estimated at 35,000 m³ per year of coarse and fine material, during the Alpine floods in 2005 it was about double.

For the 2nd  National Water  Management Plan (NPG) 2015, which  continues to implement the EU Water Framework Directive (WFD), the power plant must be equipped with a fish pass.

investment

Bodendorf-Paal storage power plant
Image wanted
location
Coordinates	47 ° 6 '27 "  N , 14 ° 3' 56"  E
Waters	Mur , Paalbach , Minibach , Turrachbach
Data
Type	Storage power plant
power	27 megawatts
Start of operations	1982
turbine	1 Francis turbine
Energy fed in per year	69 GWh

The two power plants share a common power house with operations building, switch house and open-air switchgear , on the left of the Mur. The processed water is fed to the medium pressure system via a calming basin on the upper water side of the low pressure stage, where it is used again to generate energy.

The electricity is diverted via a 110 kV overhead line to the Teufenbach substation (medium pressure level) and 30 kV lines to Teufenbach , St. Georgen and Predlitz (low pressure level). Together, the two power plants generate electricity for 44,000 households.

In the machine house there are also two 400 kVA transformers from Brown Boveri for the entire system (Mur and Paal) and a Volvo diesel engine with a Hitzinger 135 kVA generator as an emergency power supply for the St. Georgen and Bodendorf plants. The St. Georgen power plant is unmanned; it is controlled and monitored fully automatically by the process computer in Bodendorf.

Bodendorf-Mur run-of-river power plant

The weir system of the run-of- river power plant has two fields with a clear width of 12.0 m each and a lock height of 8.5 m. The target is at 853  m above sea level. A. , at a bottom height of the Mur of 845.5  m above sea level. A. The underwater is 836.2  m above sea level. A. The storage space is a good 2 kilometers up to St. Ruprecht .

The five-bladed Kaplan - spiral turbine with a rated power of 7,415 kW (at 214.3 / min) has an impeller diameter of 2.7 m, and was of the Maschinenfabrik Andritz prepared. Connected is an 8500 kVA three-phase synchronous generator and a corresponding machine transformer that boosts the voltage to 30 kV, both from ELIN .

Bodendorf-Paal storage power plant

The supply line to the storage power plant takes place through a pressure tunnel . His moated castle is on the right side of the valley on the slope of the Ochsenberg , with a 305 m pipe head.

From there a 9.17 kilometer long headrace tunnel leads southwest to the central Paalbach . The small storage facility Paal is located at the Stöllerhütte between Würflinghöhe and Prankerhöhe at 1158  m above sea level. A. (congestion destination,  ⊙ ). Its storage capacity is 220,000 m³.

Another tunnel, 8.90 kilometers long, connects the Turrachbach . The Turrachbach stream connection is on the other side of the Würflinghöhe, a good 3 kilometers out of the valley from Turrach , a little above the forest houses, at approx.  1170  m above sea level. A.  ( ⊙ ). The Minibach is also included to the east ( ⊙ ).

A Francis spiral turbine with a diameter of 1.354 m and a nominal output of 27,260 kW (at a flow rate of 10 m³ / s) from Andritz, a 31,000 kVA three-phase synchronous generator and a 10.5 / 110 kV transformer, also both are driven by ELIN.

Nature and leisure

The storage space of the running power plant is fishing waters, and brown trout and rainbow trout and grayling occupied. With the continuation, a more natural stock should come about.

The complex belongs to the full extent for Europe reserve upper and middle sections of the Mur ( FFH , AT2236000 / Nr. 5).

The Mur Cycle Path runs along the south bank of the reservoir ( right bank ) .

See also

• List of Verbund AG power plants

Web links

Commons : Kraftwerk Bodendorf  - Collection of images, videos and audio files

• Bodendorf-Mur run-of-river power plant , Bodendorf-Paal storage power plant . Detailed description on the Verbund AG website (verbund.com).

Individual evidence

1. ↑ ^{a b} GIS-Styria, topic waters & water information , layer national water management plan (2015 → stock data , accessed November 18, 2016).
2. ↑ ^{a b c} Weblink verbund.com, sections history , accessed November 18, 2016.
3. ↑ ^{a b} St. Georgen run-of-river power station: History. on verbund.com (accessed November 19, 2016).
4. ^ "Fish stocks threatened": Reservoir flushing in power plants criticized. In: The Standard. online, August 24, 2012.
5. ↑ The Interreg IIIb project ALPRESERV Sustainable Sediment Management of Alpine Reservoirs considering ecological and economical aspects: Reservoir management of the Bodendorf power plant. Folder information event March 16, 2006, Kaindorf (pdf, on wasserwirtschaft.steiermark.at); Results (pdf, on alpreserv.at).
6. ↑ Hannes Badura: Solid transport processes during flushing of river reservoirs using the example of the upper Mur. (= Series of publications on water management. ). Publishing house d. Graz University of Technology, 2012, ISBN 978-3-85125-002-2 ( web link with abstract , manz.at).
7. ↑ op.cit. ALPRESERV: storage space management , information event folder , chronology slide . P. 16 (pdf p. 17), and ff Rinsing carried out, rinsing strategies, hydrological overview .
8. ↑ 86,000 m³ siltation from the last flush in June 2004 to October 2005; Information according to op.cit. ALPRESERV: Storage space management , information event folder , chronology slide and DGM, flood October 2005. p. 29 (pdf p. 31).
9. ↑ ezb · Technical offices for applied aquatic ecology, fishing industry, cultural engineering and water management: Feasibility study of fish ladders at two Mur power plants. at ezb-fluss.at, accessed November 18, 2016.
10. ↑ ^{a b c} Weblink verbund.com, respective sections of the building description , accessed November 18, 2016.
11. ↑ ^{a b c d e} Weblink verbund.com, respective sections Technical Description below, accessed November 18, 2016.
12. ↑ ^{a b c} Weblink verbund.com, overview graphic Bodendorf-Paal above, accessed November 18, 2016.
13. ↑ Fishing on the green Mur , on sevenhofer.at, accessed November 19, 2016.