Qorlortorsuaq Dam
| Qorlortorsuaq Dam | |
|---|---|
  Qorlortorsuaq Dam Location of Qorlortorsuaq Dam in Greenland | |
| Country | Greenland |
| Coordinates | 60°46′45.90″N 45°14′27.27″W / 60.7794167°N 45.2409083°W |
| Status | Operational |
| Construction began | 2003 |
| Opening date | 2007 |
| Owner | Nukissiorfiit |
| Dam and spillways | |
| Type of dam | Gravity |
| 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) |
| Coordinates | 60°46′33.98″N 45°14′13.19″W / 60.7761056°N 45.2369972°W |
| Operator | Landsvirkjun |
| Turbines | 2 x 3.8 MW |
| Installed capacity | 7.6 MW |
| Capacity factor | 41% |
| Annual generation | 27.5 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 7.6 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 gravity 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 has two horizontal axis 3.8 MW Francis turbines manufactured by Kössler for a total installed capacity of 7.6 MW. Its annual generation is 27.5 GWh.[4][5] 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][6] It crosses over the Igaliko Fjord, a more than 2 km long span, between these two pylons: 60°48′45″N 45°39′42″W / 60.812446°N 45.661606°W and 60°46′41″N 45°35′43″W / 60.777958°N 45.595286°W.
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.[7]
References
[edit]- ^ a b "Hydro Power Plant Qorlortorsuaq, Greenland" (PDF). ÍSTAK Ltd. Archived from the original (PDF) on 2011-07-22. Retrieved 2008-02-16.
- ^ "Ny stor spændende ordre: Vandkraftværk Qorlortorsuaq, Grønland" [New large exciting order: Qorlortorsuaq Hydroelectric Plant, Greenland] (Press release) (in Danish). YIT Denmark. 2004-01-06. Archived from the original on 2011-07-19. Retrieved 2011-02-13.
- ^ a b "Qorlortorsuaq — Hydroelectric Project". Verkís. Archived from the original on 2011-07-17. Retrieved 2011-02-13.
- ^ a b c "Small Hydroelectric, Qorlortorsuaq". Mannvit Engineering. Archived from the original on 2011-10-07. Retrieved 2011-02-13.
- ^ "Qorlortorsuaq hydropower plant". verkis.com. Archived from the original on 2022-11-26. Retrieved 2023-09-09.
- ^ "Flight Information". Narsarsuaq Airport. Archived from the original on 2013-07-26. Retrieved 2013-05-31.
Caution. Powerlines has been established.
- ^ "Greenland opens hydrogen plant for renewable energy storage". Renewable Energy Focus. Retrieved 2011-02-15.
