Qorlortorsuaq Dam

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Qorlortorsuaq Dam
Qorlortorsuaq Dam is located in Greenland
Qorlortorsuaq Dam
Location of Qorlortorsuaq Dam
Country Greenland
Coordinates 60°46′46″N 45°14′22″W / 60.77944°N 45.23944°W / 60.77944; -45.23944Coordinates: 60°46′46″N 45°14′22″W / 60.77944°N 45.23944°W / 60.77944; -45.23944
Status Operational
Construction began 2003
Opening date 2007
Dam and spillways
Type of dam concrete dam
Height 15 m (49 ft)
Length 80 m (262 ft)
Spillway capacity 3.9 m3/s (138 cu ft/s)
Reservoir
Total capacity 108,000,000 m3 (88,000 acre·ft)
Surface area 2.4–5.1 km2 (0.9–2.0 sq mi)
Power station
Operator(s) Landsvirkjun
Turbines 2 x 3.8 MW
Installed capacity 7.6
Annual generation 27 GWh

Qorlortorsuaq Dam is a hydroelectric dam near Qorlortorsuaq in the Nanortalik district of the Kujalleq municipality in southern Greenland. It has a capacity of 7.2 MW and it generates power for the neighbouring towns of Qaqortoq and Narsaq.

History[edit]

The construction of the power plant started in December 2003 and was completed in October 2007.[1] It was built by consortium of E. Pihl & Son AS (51%), YIT (34%), and Landsvirkjun (15%). Landsvirkjun operates the power plant until 2012, when operation will be transferred to the Kujalleq municipality.[2] The design and engineering was performed by Icelandic companies Verkís and Efla.[3]

Description[edit]

Qorlortorsuaq Dam is a concrete dam with height of 15 metres (49 ft) and crest length of 80 metres (260 ft). It creates a reservoir with a capacity of 108 million cubic meters.[4] Its tunnel length is 245 metres (804 ft) and pressure pipe is 245 metres (804 ft).[1] The flow rate is 3.9 cubic metres per second (140 cu ft/s).[3]

The power plant as two horizontal axis Francis turbines manufactured by Kössler with a total installed capacity of 7.6 MW. Its annual generation is 27 GWh.[4] A crew of four maintains the power plant.

Together with the power plant a 70 kilometres (43 mi) long high voltage (70 kV) line to Qaqortoq and Narsaq was erected.[4][5] It passes the Igaliko Fjord, a more than 2 km long span, approximate between these two pylons: 60°48′45″N 45°39′42″W / 60.812446°N 45.661606°W / 60.812446; -45.661606 and 60°46′41″N 45°35′43″W / 60.777958°N 45.595286°W / 60.777958; -45.595286.

Green Power program[edit]

The hydropower plant is part of the plan of the Greenland Home Rule government to replace fossil fuelled energy production and storage with sustainable power production. [6]

References[edit]

  1. ^ a b "Hydro Power Plant Qorlortorsuaq, Greenland" (PDF). ÍSTAK Ltd. Retrieved 2008-02-16. 
  2. ^ "Ny stor spændende ordre: Vandkraftværk Qorlortorsuaq, Grønland" [New large exciting order: Qorlortorsuaq Hydroelectric Plant, Greenland] (Press release) (in Danish). YIT Denmark. 2004-01-06. Retrieved 2011-02-13. 
  3. ^ a b "Qorlortorsuaq — Hydroelectric Project". Verkís. Retrieved 2011-02-13. 
  4. ^ a b c "Small Hydroelectric, Qorlortorsuaq". Mannvit Engineering. Retrieved 2011-02-13. 
  5. ^ "Flight Information". Narsarsuaq Airport. Retrieved 2013-05-31. "Caution. Powerlines has been established." 
  6. ^ "Greenland opens hydrogen plant for renewable energy storage". Renewable Energy Focus. Retrieved 2011-02-15.