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Sigalda Power Station
The Sigalda Hydropower Plant, located on the Tungnaá River in the Icelandic highlands, was constructed between 1973 and 1978 and was a major engineering feat for its time. The facility utilizes a natural head of 74 meters and features an installed capacity of 150 megawatts, generated by three vertical Francis turbines. Sigalda plays a crucial role in regulating the Icelandic national power grid, as its Krókslón reservoir allows for flexible response to fluctuating electricity demand. During its construction, the project faced significant logistical hurdles due to its remote location in a volcanic landscape, which was then accessible only via rugged gravel tracks. The plant's architecture is functional and sturdy, designed to withstand the harsh weather conditions and extreme temperatures of the highlands. After passing through the turbines at Sigalda, the water continues downstream to the Hrauneyjafoss station, demonstrating a highly efficient multi-stage use of the river's potential. Today, the station is not only a key energy provider but also a central hub for hydrological monitoring in the central highlands.
- Location: Iceland
- Nearby: Landmannalaugar (21 km)
Best time to visit & climate
The most pleasant time to visit is Jun–Aug.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | -4 | -4 | -3 | -1 | 2 | 6 | 8 | 7 | 4 | 1 | -3 | -4 |
| Rain mm | 236 | 219 | 208 | 170 | 123 | 122 | 147 | 159 | 224 | 220 | 210 | 236 |
📋 Practical info
Geography
Facts
- The construction of the plant took place from 1973 to 1978.
- The total installed capacity is 150 megawatts.
- The hydraulic head used for power generation is 74 meters.
- Three vertical Francis turbines are installed in the powerhouse.
- The reservoir associated with the plant is named Krókslón.
- Sigalda serves as a primary regulation point for the national grid.
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Sights in the town Sigalda Power Station (1)
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Frequently asked questions
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