Ulla-Førre
title: "Ulla-Førre" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["hydroelectric-power-stations-in-norway", "dams-in-norway", "pumped-storage-hydroelectric-power-stations"] topic_path: "geography/norway" source: "https://en.wikipedia.org/wiki/Ulla-Førre" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::data[format=table title="Infobox dam"]
| Field | Value |
|---|---|
| name | Ulla-Førre |
| image | Storvassdammen 3.JPG |
| image_caption | The artificial lake Blåsjø and Storvassdammen |
| location_map | Norway |
| country | Norway |
| status | O |
| owner | Statkraft |
| res_name | Blåsjø |
| res_capacity_total | 3.1 km3 |
| res_capacity_active | 7.8 TWh |
| res_surface | 84.48 km2 |
| res_elevation | 930 - |
| plant_name | Kvilldal Hydroelectric Power Station |
| plant_capacity | 1,240 MW |
| plant_annual_gen | 3,517 GWh |
| embed | yes |
| plant_name | Saurdal Hydroelectric Power Station |
| plant_capacity | 640 MW |
| plant_annual_gen | 1,335 GWh |
| embed | yes |
| plant_name | Hylen Hydroelectric Power Station |
| plant_annual_gen | 583 GWh |
| plant_capacity | 160 MW |
| embed | yes |
| plant_name | Stølsdal Hydroelectric Power Station |
| plant_annual_gen | 51 GWh |
| plant_capacity | 17 MW |
| embed | yes |
| :: |
| name = Ulla-Førre | name_official = | image = Storvassdammen 3.JPG | image_caption = The artificial lake Blåsjø and Storvassdammen | image_alt = | location_map = Norway | location_map_size = | location_map_caption = | coordinates = | country = Norway | location = | status = O | construction_began = | opening = | demolished = | cost = | owner = Statkraft | dam_type = | dam_height = | dam_height_thalweg = | dam_height_foundation = | dam_length = | dam_width_crest = | dam_width_base = | dam_volume = | dam_elevation_crest = | dam_crosses = | spillway_count = | spillway_type = | spillway_capacity = | res_name = Blåsjø | res_capacity_total = 3.1 km3 | res_capacity_active = 7.8 TWh | res_capacity_inactive = | res_catchment = | res_surface = 84.48 km2 | res_elevation = 930 - | res_max_depth = | res_max_length = | res_max_width = | res_tidal_range = | website = | extra = | plant_name = Kvilldal Hydroelectric Power Station | plant_capacity = 1,240 MW | plant_annual_gen = 3,517 GWh | embed=yes | plant_name = Saurdal Hydroelectric Power Station | plant_capacity = 640 MW | plant_annual_gen = 1,335 GWh | embed=yes | plant_name = Hylen Hydroelectric Power Station | plant_annual_gen = 583 GWh | plant_capacity = 160 MW | embed=yes | plant_name = Stølsdal Hydroelectric Power Station | plant_annual_gen = 51 GWh | plant_capacity = 17 MW | embed=yes
Ulla-Førre is a hydropower complex in Southern Norway. It is situated along the borders of the municipalities of Suldal and Hjelmeland (in Rogaland county) and Bykle (in Agder county), Norway. It has an installed capacity of approximately 2100 MW, and the annual average production is 4.45 TWh (1987–2006), while its reservoir capacity is about 7.8 TWh; at full production, it can last seven to eight months. The complex includes the artificial lake Blåsjø, which is made by dams around 1000 m above the sea level. The hydroelectric power stations in the complex are Saurdal, Kvilldal, Hylen and Stølsdal, operated by Statkraft.
Blåsjø
Blåsjø is the tenth largest lake in Norway by area. It is located in the municipality of Bykle in Agder county and the municipalities of Hjelmeland and Suldal in Rogaland county. The lake is about 20 km west of the village of Bykle. It has a surface area of 84.48 km2. Its surface swings between 930 and above sea level depending on seasonal weather and power consumption, and it has a shoreline of about 200 km. At the highest regulated water level, Blåsjø contains 3,105,000,000 m3 of water.
Kvilldal Hydroelectric Power Station
The Kvilldal Power Station is a located in the municipality of Suldal. The facility operates at an installed capacity of 1,240 MW, making it the largest power station in Norway in terms of capacity. Statnett plans to upgrade the western grid from 300 kV to 420 kV at a cost of , partly to accommodate the North Sea Link cable from Kvilldal to Blyth, UK.
Saurdal Hydroelectric Power Station
The Saurdal Power Station is a hydroelectric and pumped-storage power station located in the municipality of Suldal. The facility operates at an installed capacity of 674 MW (in 2015). The average energy absorbed by pumps per year is 1189 GWh (in 2009 to 2012). The average annual production is 1335 GWh (up to 2012).
Hylen Hydroelectric Power Station
The Hylen Power Station is located at the bottom of Hylsfjord in Suldal. It operates at an installed capacity of 160 MW, with an average annual production of 583 GWh. The plant exploits water through a tunnel from the lake Suldalsvatnet.
References
References
- (31 October 2019). "Om kraftmarkedet og det norske kraftsystemet – NVE".
- (2007). "Ulla-Førre 1982–2007". Statkraft Energi AS – Region Vest-Norge.
- "Blåsjø". [[Store norske leksikon]].
- Vinjar, Asbjørn. (July 2018). "Kvilldal kraftstasjon". Kunnskapsforlaget.
- "Western corridor". Statnett.
- (15 September 2023). "Vestre korridor". Statnett.
- (15 September 2023). "Oppstart av arbeid på Vestre korridor".
- "Cable to the UK". Statnett.
- Rosvold, Knut A. "Saurdal kraftverk". Kunnskapsforlaget.
- Rosvold, Knut A. "Hylen kraftverk". Kunnskapsforlaget.
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