Stubachtal power plant group
The Stubachtal power plant group or the Stubachwerk is a system of six traction current hydropower plants of the Austrian Federal Railways in the Stubachtal in the Hohe Tauern . It is storage power plants , the future also partially pumped-storage power plants are expanded.
Connection to the 50 Hz network
The power plant group is connected to the 110 kV traction current network of the ÖBB. In order to better compensate for the regionally different demand for electrical traction energy within Austria, the single-phase traction current generated in the Stubachtal with a network frequency of 16.7 Hz has been partially converted into three-phase alternating current with 50 Hz network frequency and into the public in a frequency converter plant in Uttendorf since 2015 The high-voltage network of the Austrian Power Grid can be fed in to be converted back into traction current elsewhere in Austria by converter stations. This means that transmission losses that would occur within the 110 kV traction current network can be reduced by using the larger public electricity network with its higher transmission voltages .
Individual power plants of the group
The processing of the headwater takes place in several individual power plants, which are located at different levels in the Stubachtal. The non-public works cable car Enzingerboden-Tauernmoos-Weißsee ensures year-round access to the structures located in the high alpine terrain. In the course of the planning for the Tauernmoos power plant, however, the construction of an access tunnel system that can be driven by trucks, which begins at the end of the Enzingerboden valley and leads to the future power station cavern and the Weißsee portal, is intended.
Power plant south
The South Beileitung collects some bodies of water south of the main Alpine ridge in the municipality of Matrei in East Tyrol and leads them to the Tauernmoossee through an eight-kilometer system of tunnels . The south cavern power plant built from 1968 to 1974 uses the gradient of this bypass. The net head is 215 m, the two-nozzle Pelton turbine has an output of 1.2 MW at 694 l / s throughput . The three-phase current generated is used by the operating facilities of the southern sub-line and the Enzingerboden power plant.
Enzingerboden power plant
The Enzingerboden power plant is considered the main stage of the group. It uses the main reservoir Tauernmoossee as well as the pre- reservoirs Weißsee , Amertaler See and Salzplattensee . Amertaler See (also: Amersee) and Salzplattensee are recorded via the north pipeline , which flows into the Weißsee.
Grünsee power plant
Parallel to the main stage, there is a small power plant on Enzingerboden, which is fed from the Grünsee . The effective head is 256.5 m, the power 500 kW with a flow rate of 2.4 m³ / s.
Schneiderau power plant
The intermediate level is formed by the Schneiderau power plant located above the Rotte Schneiderau , which uses the underwater area of the Enzingerboden power plant and the tributaries to the Stubach after the Tauernmoossee. It also uses the Wiegenbach, which is fed into its moated castle .
Uttendorf I power plant
The power plant Uttendorf I forms one of the two lower levels and is located in the community of Uttendorf near the valley entrance of the Stubach valley at approx. 800 m above sea level. Adriatic . It uses the underwater of the intermediate level as well as the water that accumulates next to the intermediate level and some stream bypasses. After the turbine passage, the headwater is fed to the Stubach, which shortly afterwards flows into the Salzach as a right tributary.
Uttendorf II power plant
The Uttendorf II power plant is located in the same operating building as the Uttendorf I power plant. It uses the processed water from the Enzingerboden power plant, which is stored in the Enzingerboden compensation basin slightly below . In contrast to the Uttendorf I power plant, the headrace route, omitting the Schneiderau power plant, leads directly to the machine sets of the Uttendorf II power plant. The approved flow rate is 12 m³ / s at a usable head of 664 m, the bottleneck power is 66 MW.
Tauernmoos power plant
The Weißsee was dammed during and after the Second World War in order to be able to supply the headwater to the Tauernmoos main reservoir as required. The difference in altitude between the lakes has not yet been used. An underground cavern system is to be built in order to make the difference in height usable in the future. The Weißsee becomes the upper basin and the Tauernmoossee the lower basin for the pumped storage facility. Two reversible pump turbines , each with an output of 85 MW and a maximum flow of 40 m³ / s, are used. While the other systems in the Stubachtal only generate traction power, the Tauernmoos power station installs machine sets that are operated with 50 Hz three-phase alternating current. The connection to the transmission networks is made by an 18.5 km long 110 kV underground cable from the machine transformers to the Uttendorf converter system. Construction is scheduled to start in April 2020, and the new pumped storage power plant is scheduled to go into operation in 2025.
photos
View out of the valley: Weißsee (left) and Tauernmoossee (right)
Memorial plaque for a satellite camp of the Dachau concentration camp
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Individual evidence
- ^ Austrian National Library - Stubachwerk. In: bildarchivaustria.at. Retrieved October 8, 2016 .
- ↑ limited preview in the Google book search
- ↑ WHITE HELL WEISSSEE. Forced labor at an altitude of 2,300 m - Part 2. In: www.bergnews.com. Retrieved October 8, 2016 .
- ^ ÖBB Infrastruktur AG: Central Works Group. In: oebb.at. Retrieved October 2, 2016 .
- ↑ Map of the ÖBB traction power line network 2AC55 / 110 kV 16.7 Hz. (JPG) ÖBB-Infra, accessed on October 9, 2016 .
- ↑ PressReader.com - Newspapers from around the world. In: pressreader.com. Retrieved October 2, 2016 .
- ↑ Construction information KW-Tauernmoos - frequency converter Uttendorf. (PDF) Info folder. ÖBB-Infra, June 2013, accessed on October 8, 2016 .
- ↑ a b “Tauernmoos” pumped storage power plant - notification according to the Environmental Impact Assessment Act 2000 ( memento of the original from April 19, 2016 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. of the Office of the Salzburg State Government from April 25, 2012, accessed on October 8, 2016 (PDF)
- ↑ Supplement to the environmental impact assessment for the Tauernmoos power plant project ( memento of the original from October 8, 2016 in the Internet Archive ) 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. of the Office of the Salzburg Provincial Government on May 6, 2014, accessed on October 8, 2016 (PDF)
- ↑ Extract from the water book supplement south. In: portal.tirol.gv.at. Retrieved October 3, 2016 .
- ↑ Environmental impact assessment for the environmental impact assessment according to UVP-G 2000 for the Tauernmoos power plant project of ÖBB-Infrastruktur AG, Vienna. (No longer available online.) In: salzburg.gv.at. P. 257 , archived from the original on October 9, 2016 ; accessed on October 9, 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.
- ↑ OpenStreetMap. In: openstreetmap.org. Retrieved October 9, 2016 .
- ↑ Water book excerpt from KW Grünsee. In: service.salzburg.gv.at. Retrieved October 9, 2016 .
- ↑ Excerpt from water book KW Uttendorf II. In: service.salzburg.gv.at. Retrieved October 9, 2016 .
- ↑ ÖBB power plant Tauernmoos approved. In: salzburg.orf.at. May 1, 2012, accessed February 11, 2020 .
- ↑ ÖBB pumped storage power plant: start of construction in the Stubachtal. In: orf.at . February 11, 2020, accessed February 11, 2020.
Coordinates: 47 ° 15 ′ 44.5 ″ N , 12 ° 34 ′ 5 ″ E