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Hellisheidi
Location: Iceland
Operator: Orkuveita Reykjavikur
Configuration: 2 X 40 MW
Operation: 2006
T/G supplier: MHI
EPC: MHI, Balcke-Durr, Istak
Quick facts:
This new geothermal power plant is south of Hengill
volcano on the Hellisheidi Plateau in southwest Iceland. The site is
about 20km east of Reykjavik. When fully built out, the power station
will have an estimated output of 300 MW electricity and 400 MW of heat.
First drilling in the area began in 1985. Two more units were ordered in
May 2006 and completed in 2008.
Photograph courtesy of Orkuveita Reykjavikur
Posted 6 Dec 2006 |
Husavik
Location: Iceland
Operator: Lansvirkjun
Configuration: 1 X 2 MW Kalina
Operation: 2000
T/G supplier: ??
EPC: Recurrent Engineering, Verkis
Quick facts: This a Kalina cycle power plant. The working fluid is an
ammonia/water mix.
Photograph courtesy of Landsvirkjun
Posted 19 Feb 2005 |
Krafla
Location: Iceland
Operator: Lansvirkjun
Configuration: 2 X 30 MW
Operation: 1977-1997
T/G supplier: MHI
Quick facts: Large-scale volcanic
eruptions only 2km from the site were an early problem during
construction. In 1996, a decision
was made to install a second T/G set and borehole drilling with improved
technology began immediately. 33 boreholes have now been drilled for the Krafla station and, on average, about half are used at any time.
Photograph courtesy of Landsvirkjun
Posted 5 Feb 2005 |
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Nesjavellir
Location: Iceland
Operator: Orkuveita Reykjavikur
Configuration: 4 X 30 MW CHP
Operation: 1998-2005
T/G supplier: MHI, Melco
Quick facts:
The Nesjavellir power station is 20km from Reykjavík
at 177m elevation. Geothermal drilling by a local landowner began in
1946 with hot water utilized for space heating. Reykjavík District
Heating bought the site in 1964 and later completed 22 boreholes from 1
to 2km deep with measured temperatures reaching 380°C. Construction of a
heating plant began in early 1987 and was completed in 1990. By 1995,
five new boreholes had been completed with hot water flows reaching 840l
per second, or about 150 MWt. The first steam turbine was put online in
1998 and new holes were bored to support additional power generation.
This is one of the largest single-site geothermal plants in the world
and welcomes 15,000 visitors per year.
Photograph by Gretar Ivarsson and courtesy of Orkuveita Reykjavikur
Re-posted 14 May 2008 |
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Reykjanes
Location: Iceland
Operator: Hitaveita Sudurnesja HF
Configuration: 2 X 50 MW CHP
Operation: 2006
T/G supplier: Fuji
EPC: Sumitomo, Enex, Eykt
Quick facts: This plant on the
Reykjanes peninsula ( the "smoking peninsula") uses steam and brine from
a reservoir at 290 to 320°C, which is extracted from 12 wells that are
2700m deep. This is the first time that geothermal steam of such high
temperature has been used for power generation. The brine is extracted
and piped into a steam separator. From there, the separated steam at
19bar passes to a steam dryer and then into the steam turbines. The
plant is close to the ocean and uses once-through cooling with seawater.
Photograph courtesy of Hitaveita Sudurnesja
Posted 13 Jun 2006 |
