The joint venture of VST hf., VGK Honnun hf., and Rafteikning hf. received a contract worth 1.37 billion kronur (US$19.1 million).
They are to provide tender design and preparation of tender documents, detail design of civil works, and design review of electro-mechanical works of the three projects to be built downstream from the 270-MW Burfell hydro project in southern Iceland. (HNN 12/22/06) Work began in June 2007 and be completed in June 2012.
The three run-of-river projects include:
o Hvammur, 80 MW, including three kilometers of waterways, a concrete weir, 3.5-kilometer dyke, and a shaft-type powerhouse containing an 80-MW vertical Francis or Kaplan turbine. The plant would have a maximum flow of 300 cubic meters per second, a head of 32 meters, and average annual generation of 620 gigawatt-hours;
o Holt, 50 MW, described as a second stage of the Hvammur development, featuring short artificial waterways, an intake pond, and a powerhouse with two vertical Kaplan turbines. It would have a maximum flow of 310 cms, a head of 18 meters, and average annual generation of 390 GWh; and
o Urridafoss, 125 MW, including a 4.3-kilometer dyke and reservoir, short underground penstocks, 3-kilometer tailrace tunnel, and an underground powerhouse with two vertical Kaplan units. It would have a design flow of 320 cms, a head of 42 meters, and average annual generation of 960 GWh.