Kızıldere Geothermal Power Plant

Kızıldere Geothermal Power Plant
Location of Kızıldere Geothermal Power Plant in Turkey
Official name Kızıldere Jeotermal Elektrik Santralı
Country Turkey
Location Kızıldere, Sarayköy, Denizli Province
Coordinates 37°57′00″N 28°50′35″E / 37.95000°N 28.84306°E / 37.95000; 28.84306Coordinates: 37°57′00″N 28°50′35″E / 37.95000°N 28.84306°E / 37.95000; 28.84306
Status Operational
Commission date 1984 (1984)
Construction cost US$250 million
Operator(s) Zorlu Energy Inc.
Power generation
Nameplate capacity 95 MW
Annual generation 575 GWh

The Kızıldere Geothermal Power Plant (Turkish: Kızıldere Jeotermal Elektrik Santralı) is a geothermal power plant located at Kızıldere village of Sarayköy district in Denizli Province, southwestern Turkey. The initial power plant with 15 MW installed capacity was expanded in the second phase about 80 MW to 95 MW in total, making the facility Turkey's biggest geothermal power plant.[1][2] It is planned to expand the power plant in a third and fourth phase.[3][4][5]

History

The power plant began its operation as a prototype system with the installation of a 500 kW turbine generator group in 1974.[6] The facility generated electricity and distributed it to the households of villages in the vicinity for four years free of charge. In 1984, the state-owned company Elektrik Üretim A.Ş. (EÜAŞ) built a power plant with 17.4 MW installed capacity and put it into service.[3][7][8][9][10][11] However, the geothermal power plant has produced 10 MW on average since its opening in 1984.[7][12]

In September 2008, Zorlu Energy Inc. (Zorlu Doğal Elektrik Üretim A.Ş.), a subsidiary of Zorlu Holding, acquired the facility from Ankara Doğal Elektrik Üretim ve Ticaret A.Ş. (ADÜAŞ) as part of a privatisation process with seven other hydroelectric power plants across the country.[4][8][13][14] Zorlu Energy Inc. obtained the operating lease right for a runtime of 30 years.[3][4][14] The company announced that they increased the actual power capacity from 6 MW to 14 MW in three months, and added that they plan to raise the capacity to 60 MW within three years in the next phase.[9][10][11][13]

With the initiative of the governmental Electrical Power Resources Survey and Development Administration (Turkish: Elektrik İşleri Etüt İdaresi, EIE), a research project was started by Zorlu Petrogas Oil &Gas group. After the oil and gas assets were sold to Transatlantic Petroleum, the project was carried out by Zorlu Geothermal Company in cooperation with the Hacettepe University and the Middle East Technical University (ODTÜ) to increase the electricity production from the geothermal field.[12]

For the investment capital of the planned capacity increase, which amounts to US$230 million,[15] the company received a credit from the banks Akbank and Garanti Bank in October 2010 with backpayment term of 12 years.[16]

In December 2011, the provincial administration allocated 70 decares (70,000 m2; 750,000 sq ft) land needed for the construction site of the geothermal power plant expansion. The project forecast 575 GWh annual electrical energy generation, and a contribution to the country's economy at US$60 million yearly. The geothermal fluid would be used also in dry ice production and for heating in greenhouses and households in the villages around the power plant.[15]

The construction of the Kızıldere Geothermal Power Plant was completed in 2013, and it went into service. On September 29, 2013, a ceremonial opening took place in presence of Prime Minister Recep Tayyip Erdoğan, Minister Energy and Natural Resources Taner Yıldız, other high-ranked politicians and officials.[3][4][17] The construction cost US$250 million.[1][2][17][18]

Kızıldere Geothermal Reservoir

Kızıldere geothermal field is situated at the western branch of Büyük Menderes Graben within the limits of Denizli Province.[12] It is Turkey's first and high-potential geothermal field explored for energy generation purposes.[3][6][8][9][10]

The first geological and geophysical surveys in the Kızıldere geothermal field began in 1965, and were carried out by the state-owned Turkish Mineral Research and Exploration Co. (MTA). The first geothermal reservoir was discovered in 1968 with a geothermal well drilled in 540 m (1,770 ft) depth, which had a source temperature of 198 °C (388 °F). In the years from 1968 to 1973, a total of 16 geothermal wells were drilled to depths ranging between 370–1,241 m (1,214–4,072 ft). Six of the 17 geothermal wells were found feasible for electricity generation.[6][7][8][9][10][11]

Lithologically, the Kızıldere geothermal reservoir is surrounded by marble and limestone rocks containing carbon dioxide in high rate. The calcium carbonate dissolves from the rocks and later gets deposited as limescale on the instruments in the geothermal well and at the brink, such as demisters, heat exchangers and other locations, and this causes a drop in pressure. This results in decreased steam production, reduced efficiency and an increased probability of failure.[7] Due to this fact, the power plant capacity reduced to 6 MW in the time before the privatization in 2008.[8][9][10][11] To prevent calcium carbonate scaling in production wells, inhibitors are used.[6]

The geothermal fluid of Kızıldere reservoir has a Langelier Saturation Index (LSI) of 2.1 and Ryznar Stability Index (RSI) of 2.3 by a pH value of 9.3, making scaling take place very rapidly.[7]

The source temperature at the first reservoir is between 240–260 °C (464–500 °F).[7][15] All the geothermal fluid used in the power plant is reinjected into the reservoir for the purpose of maintaining the sustainability of the source.[3][5][6]

Byproducts

In addition to electricity generation, the geothermal fluid serves for processing of carbon dioxide gas as a byproduct, and this is used in dry ice production at two nearby plants. The total annual dry ice production in Kızıldere is 80,000 tons.[7] Further applications are heating of 500 decares (500,000 m2; 5,400,000 sq ft) greenhouse space and 2,500 households.[1][3][4][5][19]

Honors

In June 2011, the International Energy and Environment Fair and Conference (ICCI) awarded Zorlu Enregy Inc. the 2010 Energy Prize for its works on renewable energy, particularly in relation to the Kızıldere GEPP and Gökçedağ Wind Farm.[20]

References

  1. 1 2 3 "Erdoğan en büyük jeotermal santrali açtı". Haber 7 (in Turkish). 2013-09-29. Retrieved 2014-01-05.
  2. 1 2 "Largest geothermal power plant opeed by Erdogan". Dünya. 2013-09-30. Retrieved 2014-01-06.
  3. 1 2 3 4 5 6 7 "Türkiye'nin en büyük jeotermal santrali devreye giriyor". Hürriyet Ekonomi (in Turkish). 2013-09-28. Retrieved 2014-01-05.
  4. 1 2 3 4 5 "Zorlu’dan ‘en büyük jeotermal’". Hürriyet Ekonomi (in Turkish). 2013-09-29. Retrieved 2014-01-05.
  5. 1 2 3 "En Büyük Jeotermal Santrali Devreye Giriyor". Energy World (in Turkish). 2013-09-28. Retrieved 2014-01-05.
  6. 1 2 3 4 5 Kaya, Tevfik & Ali Kindap (2009). "Kızıldere-New Geothermal Power Plant in Turkey" (PDF). Slovakia: International geothermal Days. Retrieved 2014-01-06.
  7. 1 2 3 4 5 6 7 "Jeotermal Kongresi Bildirimler Kitabı" (PDF) (in Turkish). Ankara: TMMOB. 2009. Retrieved 2014-01-05.
  8. 1 2 3 4 5 Çetin, Engin & Ali Rıza Verel, Edip Alpan, Erim Arıcı, Cevat Uçman, Talat Karaman (12–13 October 2009). "Denizli İli Elektrik Enerjisi Üretim Tesislerinin İncelenmesi" (PDF). Ege Bölgesi Enerji Forumu (in Turkish) (Denizli: Elektrik Mühendisleri Odası). Retrieved 2014-01-05.
  9. 1 2 3 4 5 "Zorlu Enerji Grubu, Kızıldere Jeotermal Santrali’nin kapasitesini iki katına çıkardı" (in Turkish). Ekonomize. Retrieved 2014-01-05.
  10. 1 2 3 4 5 "Kızıldere Jeotermal" (in Turkish). Alternaturk. 2008-12-29. Retrieved 2014-01-05.
  11. 1 2 3 4 "Kapasitesi düşmüştü". Kent Haber (in Turkish). 2009-01-02. Retrieved 2014-01-05.
  12. 1 2 3 Parlaktuna, Mahmut & Nilgün Güleç, Nurkan Karahanoğlu, Ender Okandan, Seyfullah Tufan, Dönmez Çiftçi, Tamer Çirkin, Yılmaz Tuna, Nazife Yılmaz. "Denizli-Kızıldere Jeotermal Sahası Elektrik Üretiminin Aartırımına Yönelik Rezervuar Değerlendirme Çalışması" (PDF). JMO. Retrieved 2013-01-05.
  13. 1 2 "Zorlu Kızıldere Jeotermal Santrali’nin kapasitesini iki katına çıkardı". Hürriyet Ekonomi (in Turkish). 2008-12-29. Retrieved 2014-01-05.
  14. 1 2 "ADÜAŞ devir sözleşmesi imzalandı". Milliyet Ekonomi (in Turkish). 2008-09-01. Retrieved 2014-01-05.
  15. 1 2 3 "Zorlu Denizli'de dev Jeotermal santral yapacak". Hürriyet Ekonomi (in Turkish). 2011-12-14. Retrieved 2014-01-05.
  16. ↑ "Zorlu Enerji'ye kredi". Hürriyet Ekonomi (in Turkish). 2010-10-15. Retrieved 2014-01-05.
  17. 1 2 "'3 yetmez 4 çocuk yapın'". Doğan News Agency (in Turkish). 2013-09-29. Retrieved 2014-01-05.
  18. ↑ "Zorlu’s geothermal power plant opened". Hürriyet Daily News. 2013-09-30. Retrieved 2014-01-06.
  19. ↑ "Kızıldere Iı Jeotermal Santrali'nde Üretim Başladı". Energy World (in Turkish). 2013-09-02. Retrieved 2014-01-05.
  20. ↑ "Gökçedağ ve Kızıldere Zorlu Enerji’ye iki ödül kazandırdı". Hürriyet Ekonomi (in Turkish). 2011-06-19. Retrieved 2014-01-05.
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