Compressed air storage power plant Staßfurt
Map with all coordinates: | Compressed air storage power plant Staßfurt (ADELE) | |||
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| location | |||
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| Coordinates | 51 ° 53 '29 " N , 11 ° 33' 20" E | ||
| country |
 Germany
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| Data | |||
| Type | Compressed air storage power plant | ||
| power | 90 MW el (storage capacity 360 MWh) |
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| operator | RWE | ||
| Project start | 2009 start of planning, 2013 start of construction, planned for 2015 planning to stop |
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| turbine | Gas expansion turbine | ||
The compressed air energy storage Staßfurt , also known under the overall project name ADELE ( acronym for " A diabater D ruck air storage for Ele ktrizitätsversorgung" ) was a planned test and demonstration facility for highly efficient compressed air energy storage , which in Staßfurt in Salzlandkreis in Saxony-Anhalt was to be built.
In the spring of 2015, the energy company RWE , one of the main sponsors of the ADELE project and the designated operator of the pilot plant, announced that the planning for the pilot plant in Staßfurt had been discontinued due to a lack of concrete market prospects.
ADELE: technical concept
The ADELE concept is a further development of the tried and tested compressed air storage power plant in Huntorf . Unlike in Huntorf is at Adele in the gas turbine fuel is not supplied firing, the gas turbine is a pure expansion turbine . The decisive improvement compared to Huntorf is that the heat from the compression of the air is temporarily stored and later fed back during relaxation. This increases the efficiency from approx. 55% to up to 70%.
The project is supported by RWE , General Electric , Züblin and the DLR , with GE for the turbines and compressors, RWE (with the subsidiary Erdgasspeicher Kalle GmbH ) for the compressed air storage and the electrical connection and Züblin (with the subsidiary Ooms-Ittner-Hof ) and the DLR are responsible for heat storage.
The pilot plant in Staßfurt should have an output of around 90 MW el and a storage capacity of around 360 MWh. If the project in Staßfurt had been successful, the plant should be expanded and further, larger plants (approx. 200 MW el / 1000 MWh) should follow at other locations.
costs
The planned costs for the first planning phase were estimated at around 10 million euros. The total costs are estimated at around 100 to 200 million euros for a 90 MW el pilot plant.
Electricity storage in the system would be somewhat cheaper compared to conventional pumped storage power plants (efficiency> 75%) despite the somewhat lower efficiency (55% to 70%) due to the significantly lower construction costs. The construction of compressed air storage facilities in suitable locations is cheaper than other electricity storage facilities and makes sense, especially in northern Germany, where on the one hand the need to store wind energy to relieve the network is greatest, but on the other hand there is hardly any expansion or new construction potential for pumped storage. Land consumption and environmental impacts of an adiabatic compressed air storage facility are minimal compared to a pumped storage power plant.
Staßfurt location
Staßfurt was selected as a possible location for the pilot plant because the geological and economic conditions are particularly favorable here:
There is a large salt dome underground ; The rich deposits of rock and potash salt are obtained from the Staßfurt soda works ( 51 ° 51 ′ 51.1 ″ N , 11 ° 34 ′ 37.9 ″ E ), which process it into soda ( sodium carbonate ) using the ammonia-soda process . Since salt extraction is carried out by means of brining , large caverns remain in the salt - quasi as a "waste product" - which can be converted into underground storage with little effort after the brining has ended .
One of these caverns has been used by RWE Gasspeicher GmbH (formerly Kavernenspeicher Staßfurt GmbH ) as an underground natural gas storage facility for a long time . The daytime facilities required for this are positioned near Neu-Staßfurt ( 51 ° 53 ′ 28.7 ″ N , 11 ° 33 ′ 20.3 ″ E ).
Despite the relatively large distance from the coast, Saxony-Anhalt has a high density of wind turbines and wind parks due to its favorable altitude . In terms of installed capacity from wind power, Saxony-Anhalt ranks third among the German federal states and first in terms of share of consumption. The main objective of the compressed air storage system is to smooth the naturally fluctuating power generation from renewable energies, especially from wind power. The proximity to the producers minimizes the electrical line losses.
With regard to electrical operation, synergies with the in-house combined cycle power plant of Sodawerke Staßfurt would have been conceivable.
Web links
- www.kraftwerkforschung.info website of the BMWi (bilingual)
- www.dlr.de/ (PDF; 809 kB) RWE / DLR lecture on March 7, 2012
Individual evidence
- ↑ a b c ADELE should store electricity safely, efficiently and in large quantities. Joint press release from RWE, General Electric, Züblin and DLR. DLR, January 19, 2010, accessed on February 21, 2014 .
- ↑ Wind power storage will be a new research focus. Energy chronicle. Udo Leuschner , January 2010, accessed on November 23, 2010 .
- ↑ a b c d e ADELE reaches important milestone: compressed air storage is to come to Staßfurt. Press release. RWE Power AG, November 23, 2010, accessed on November 23, 2010 .
- ↑ Falk Rockmann: plans for the compressed air storage system discontinued. In: Magdeburger Volksstimme (Volksstimme.de). March 31, 2015, accessed August 10, 2015 .
- ↑ a b ADELE - The adiabatic compressed air storage for the electricity supply. RWE Power , archived from the original on November 20, 2010 ; Retrieved November 23, 2010 .
- ^ Developing large-scale batteries with compressed air. General Electric , archived from the original on December 26, 2010 ; accessed on November 23, 2010 (English).
- ↑ a b ADELE - The adiabatic compressed air storage for the electricity supply. (PDF) information brochure. RWE Power , January 2010, accessed on November 23, 2010 .
- ↑ Compressed air storage is looking for a location. Interview with Gerd Jäger. Kraftwerk & Forschung, BINE Informationsdienst, FIZ Karlsruhe, November 22, 2010, archived from the original on March 12, 2012 ; Retrieved July 17, 2011 .
- ↑ Michael Gassmann: Electricity from the salt dome. Financial Times Deutschland mobil, February 15, 2011, archived from the original on September 13, 2011 ; Retrieved July 18, 2011 .
- ↑ Johannes Kaiser: More than hot air. RWE relies on compressed air power plants. Deutschlandfunk , April 14, 2010, accessed on July 18, 2011 .
- ↑ Figures from Rheinische Post of July 2, 2011, page A6: Hydropower as energy storage . The numbers are given there by Christoph Kail , professor of power engineering at the South Westphalia University of Applied Sciences .
- ↑ Analysis of wind energy use in Saxony-Anhalt. (PDF; 1.5 MB) (No longer available online.) State Administration Office of Saxony-Anhalt , formerly in the original ; Retrieved November 23, 2010 . ( Page no longer available , search in web archives )