Nesjavellir Geothermal Power Station

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Nesjavellir Geothermal Power Station
NesjavellirPowerPlant edit2.jpg
Nesjavellir Geothermal Power Station
Nesjavellir Geothermal Power Station is located in Iceland
Nesjavellir Geothermal Power Station
Location of Nesjavellir Geothermal Power Station
Country Iceland
Location Thingvellir
Coordinates 64°06′29″N 21°15′23″W / 64.10806°N 21.25639°W / 64.10806; -21.25639Coordinates: 64°06′29″N 21°15′23″W / 64.10806°N 21.25639°W / 64.10806; -21.25639
Status Operational
Commission date May 1990
Owner(s) ON Power
Geothermal power station
Type Flash steam
Min. source temp. 190 °C (374 °F)
Wells 21 in use
Max. well depth 2,000 m (6,600 ft)
Cogeneration? Yes
Combined cycle? Yes
Power generation
Units operational 4 × 30MW
Thermal capacity 300 MWt
CHP heating capacity 150 MWt
Nameplate capacity 120 MWe

The Nesjavellir Geothermal Power Station (NGPS) is the second-largest geothermal power station in Iceland. The facility is located 177 m (581 ft) above sea level in the southwestern part of the country, near Thingvellir and the Hengill Volcano. NGPS is owned and operated by ON Power.

Plans for utilizing the Nesjavellir area for geothermal power and water heating began in 1947, when some boreholes were drilled to evaluate the area's potential for power generation. Research continued from 1965 to 1986. In 1987, the construction of the plant began, and the cornerstone was laid in May 1990. The station produces approximately 120 MW of electrical power; it also delivers around 1,100 litres (290 US gal) of hot water (82-85 °C) per second, servicing the space heating and hot water needs of the Capital Region.

Panoramic view of the power station complex.
Penstocks at the power station complex.

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