Ashta hydropower plant

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Ashta hydropower plant
Channeled underflow of the Drin - Spathara reservoir with the Ashta I power plant on the right, Ashta II in the center of the picture
Channeled underflow of the Drin - Spathara reservoir with the Ashta I power plant on the right, Ashta II in the center of the picture
location
Ashta hydropower plant (Albania)
Ashta hydropower plant
Coordinates 42 ° 1 '4 "  N , 19 ° 32' 44"  E Coordinates: 42 ° 1 '4 "  N , 19 ° 32' 44"  E
country AlbaniaAlbania Albania
place Shkodra , Ashta
Waters Inside
f1
power plant
owner 50% Verbund
50% EVN
Start of planning January 15, 2008 (call for applications)
construction time March 2010 – March 2013
Start of operation June 15, 2012
technology
Bottleneck performance > 50 megawatts
Standard work capacity 240 million kWh / year
Turbines Hydro matrix
Others
Website www.energji-ashta.al

The Ashta hydropower plant is a run-of-river power plant on the Drin River in northern Albania . It forms the last power plant stage in a chain with the three existing power plants Vau-Deja , Koman and Fierza . It makes use of the height of fall between the Spathara reservoir , which is fed by the Drin River , which is immediately adjacent to the Vau-Deja dams, and the point where the Drin flows into the Buna .

The power plant was planned by the Austrian electricity company Verbund in partnership with EVN and opened on September 18, 2012.

history

The Albanian government started the tendering process on January 15, 2008. The association won a bidding process and was selected by the Albanian government in July 2008 as the best bidder for the project in northern Albania. Subsequently, the project company Energji Ashta Sh.pk was founded in Tirana together with EVN , in which both companies hold a 50% stake. On September 30, 2008, the concession agreement for the Ashta hydropower plant on the Drin River was signed in Tirana in the presence of the Albanian Prime Minister Sali Berisha .

The river power plant was built south of Shkodra , the fifth largest Albanian city, near the village of Ashta . The groundbreaking took place in May 2009 and on June 15, 2012, the first Ashta 1 turbines were connected to the grid in the presence of Sali Berisha. It is the largest power plant in Albania that has opened since the 1990s. In March 2013, the work was completed and electricity production was subsequently put into operation.

Project data

The Ashta power plant generates electricity for 100,000 households. It is planned to be environmentally friendly and does not produce any emissions. The so-called hydro-matrix is used for the Ashta run -of- river power plant : instead of one large turbine, 90 small ones are used. This makes it possible to use even low heights and thus increase efficiency. In a sense, the system is divided into two parts: Ashta I will generate electricity for the first time in Vau-Deja , where the Spathara reservoir with overflow weir and small irrigation systems for agriculture was built three decades earlier . After a seven kilometer long, low-lying diversion canal near the village of Ashta , electricity is generated a second time in Ashta II - again with matrix turbines.

The total output of both Ashta I and Ashta II systems is 53 megawatts, and more than 240 million kilowatt hours are generated per year. The two Austrian energy groups are investing around 200 million euros together.

At the end of the 35-year concession period , the power plant will be transferred to the Republic of Albania free of charge.

Project partner

  • Andritz Hydro is responsible for the electrical and mechanical equipment and the construction of the turbine generators on site.
  • Allgemeine Baugesellschaft - A. Porr AG builds the buildings in Ashta I and II.
  • Siemens is responsible for the electrical transmission of the transformers.
  • Pöyry created the implementation plans and took over the local construction management.
  • BAUMANN Ingenieur-Consulting GmbH was in charge of occupational safety

criticism

Environmentalists criticized the project in advance: On the one hand, the river bed next to the diversion canal will only carry water during floods. On the other hand, the strongly meandering river course will also lose much of its dynamism below the power plant. It was feared that this would adversely affect the softwood meadows in this section. According to information from the executing engineers, however, a residual water of 30 m³ / s is planned in the old river bed next to the discharge channel, which should correspond to about a tenth of the average amount of water. However, the river bed had to be drained during construction. For the first time, a fish ladder was installed at a hydroelectric power station in Albania .

Web links

Individual evidence

  1. ^ Verbund and EVN Open Ashta Hydropower Plant in Albania. In: Energji Ashta. September 18, 2012, accessed January 19, 2016 .
  2. Green light for Verbund and EVN power plant. In: The Standard . August 19, 2010, accessed August 21, 2010 .
  3. Groundbreaking ceremony for the Ashta hydropower plant in Albania. In: Verbund. May 25, 2009. Retrieved March 24, 2018 .
  4. The Ashta turbines are starting up. In: Top Channel . June 15, 2012, Retrieved June 15, 2012 (Albanian).
  5. Hydromatrix® turbines of HPP Ashta 1 operative for the first time. In: Energji Ashta. June 15, 2012, accessed January 19, 2016 .
  6. a b c HPP Ashta fully commissioned. In: Energji Ashta. March 27, 2012, accessed January 19, 2016 .
  7. Verbund and EVN build power plant in Albania. In: Courier . April 21, 2010, archived from the original on May 8, 2010 ; Retrieved April 21, 2010 .
  8. Study by Euronatur : Rapid Assessment of proposed Hydropower Plants on Drin River near Ashta (south of Shkodra). (PDF; 3.7 MB) Retrieved February 17, 2010 .
  9. HPP Ashta, Albania. In: Convex. Retrieved May 24, 2018 .
  10. ^ Special assignment in Albania. In: APA-OTS original text service. August 23, 2010. Retrieved August 23, 2010 .