Qorlortorsuaq Dam
Encyclopedia
Qorlortorsuaq Dam is a hydroelectric dam near Qorlortorsuaq
Qorlortorsuaq
Qorlortorsuaq is the name of a village in the Nanortalik district, in the Kujalleq municipality in southern Greenland, located at the site of the largest waterfall in the country; the waterfall also goes by the name of Qorlortorsuaq. Presently with 13 inhabitants, the population has grown since...

 in the Nanortalik district of the Kujalleq
Kujalleq
Kujalleq is a new municipality in the southern tip of Greenland, operational from 1 January 2009. With 7,589 inhabitants as of January 2010, it is the least-populated municipality in Greenland. The administrative center of the municipality is in Qaqortoq...

 municipality in southern Greenland
Greenland
Greenland is an autonomous country within the Kingdom of Denmark, located between the Arctic and Atlantic Oceans, east of the Canadian Arctic Archipelago. Though physiographically a part of the continent of North America, Greenland has been politically and culturally associated with Europe for...

. It has a capacity of 7.2 MW and it generates power for the neighbouring towns of Qaqortoq
Qaqortoq
Qaqortoq is a town in the Kujalleq municipality in southern Greenland. With a population of 3,230 as of 2011, it is the most populous town in southern Greenland, and the fourth-largest town in the country. The name is western Greenlandic and means "[the] white [one]".- History :The area around...

 and Narsaq
Narsaq
Narsaq is a town in the Kujalleq municipality in southern Greenland. The name Narsaq is Greenlandic for "plain", referring to the beautiful plain on the shore of Tunulliarfik Fjord where the town is located.- History :...

.

History

The construction of the power plant started in December 2003 and was completed in October 2007. It was built by consortium of E. Pihl & Son AS (51%), YIT
YIT
YIT Oyj is a diversified Finnish-based company, headquartered in Helsinki, which provides a range of services, mainly to other businesses...

 (34%), and Landsvirkjun
Landsvirkjun
Landsvirkjun is the largest energy producer in Iceland. It was founded in 1965 by the city of Reykjavík and the state of Iceland. Its general purpose is to produce and provide electricity for heavy industry and to sell electricity to local providers around Iceland...

 (15%). Landsvirkjun operates the power plant until 2012, when operation will be transferred to the Kujalleq municipality. The design and engineering was performed by Icelandic companies Verkís and Efla.

Description

Qorlortorsuaq Dam is a concrete dam with height of 15 metres (49.2 ft) and crest length of 80 metres (262.5 ft). It creates a reservoir with a capacity of 108 million cubic meters. Its tunnel length is 245 metres (803.8 ft) and pressure pipe is 245 metres (803.8 ft). The flow rate is 3.9 m3/s.

The power plant as two horizontal axis Francis turbine
Francis turbine
The Francis turbine is a type of water turbine that was developed by James B. Francis in Lowell, Massachusetts. It is an inward-flow reaction turbine that combines radial and axial flow concepts....

s manufactured by Kössler with a total installed capacity of 7.6 MW. Its annual generation is 27 GWh. 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
Qaqortoq
Qaqortoq is a town in the Kujalleq municipality in southern Greenland. With a population of 3,230 as of 2011, it is the most populous town in southern Greenland, and the fourth-largest town in the country. The name is western Greenlandic and means "[the] white [one]".- History :The area around...

 and Narsaq
Narsaq
Narsaq is a town in the Kujalleq municipality in southern Greenland. The name Narsaq is Greenlandic for "plain", referring to the beautiful plain on the shore of Tunulliarfik Fjord where the town is located.- History :...

was erected.

Green Power program

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.
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