2023 Kroka 2 Power Plant - Mauranger
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Length: 1083 m. Height difference 480 m.
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Diameter: 0.78 m.
2023 Dalåna Cable Conduct - Forsand
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Length: 1187 m. Height difference 336 m.
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Diameter: 0.7 m.
2023 Ervikselva Power Plant - Sunnfjord
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Length: 1659 m. Height difference 136 m.
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Diameter: 1.2 m.
2022 Tokheim Power Plant - Ullensvang
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Length: 1120 m. Height difference 412 m.
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Diameter: 0.7 m.
2022 Mordøla Power Plant - Luster
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Length: 748 m. Height difference 348 m.
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Diameter: 1.2 m.
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The tunnel is lined over a distance of 350 m with 0.914 m diameter steel pipe.
2022 Einungstøl Power Plant - Røldal
2022 Mjølsvik Power Plant - Høyanger
2022 Eikemo Power Plant - Vaksdal
2022 Ala Power Plant - Valdres
2022 Tverrelvi Power Plant - Voss
2021 Kvernhus Power Plant - Instefjord
2021 Trollfjord Power Plant - Vågan
2021 Risvoll Power Plant - Sauda
2021 Kupe Power Plant - Sunnfjord
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Length: 827 m. Height difference 142 m.
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Diameter: 0.78 m.
2021 Stampaelva Power Plant - Jondal
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Length: 1521 m. Height difference 546 m.
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Diameter: 0.78 m.
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Full length lining with 0.711 m diameter pipe.
2020 Bergselvi Power Plant - Fortun
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Length: 1091 m. Height difference 270 m.
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Diameter: 0.78 m.
2020 Kjerringnes Power Plant - Luster
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Length: 1483 m. Height difference 500 m.
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Diameter: 1.2 m.
2020 Ramsliåna Power Plant - Ramsli
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Length: 691 m. Height difference 197 m.
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Diameter: 0,78 m
2020 Cavaglio Power Plant, Italy
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Length: 1600 m. Height difference 116 m.
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Diameter: 0.78 m.
2019 Gudåa Power Plant - Meråker
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Length: 550 m. Height difference 100 m.
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Diameter: 1.2 m.
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Full length lining with 0.914 m diameter steel pipe.
2019 Nottveit Pico power plant - Modalen
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Length: 460 m. Height difference 270 m.
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Diameter: 1.2 m.
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The tunnel started with a 5 degrees incline, and ended at 55 degrees.
2018 Langneset Åga Fresh Water supply - Mo i Rana
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Two tunnels with the lengths of 930 and 170 m. Total height difference 52 m.
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Diameter 0.7 m.
2018 Erstmyr District Heating - Tonstad
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Length 575 m. Height difference 120 m.
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Diameter 0.7 m.
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Full length lining with 0.56 m diameter district heating pipes.
2017/2018 Grytendal Power Plant – Bindal 21,8 GWh
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Length 560 m. Height difference 155 m.
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Diameter 1.5 m.
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Full length lining with 1.4 m diameter steel pipe.
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Equivalent to electricity for about 1090 households.
2017 Geitåni Power Plant – Voss 17,3 GWh
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Length 330 m. Height difference 100 m.
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Diameter 1.2 m.
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Full length lining with 0.914 m diameter steel pipe.
2017 Tenneelva Power Plant – Vanylven 10,3 GWh
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Length 485 m. Height difference 240 m.
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Diameter 0.74 m.
2017 Steinvik Hatchery – Fresh water for smolt plants.
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Length 245 m. Height difference 16 m.
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Diameter 1.1 m.
2016/2017 Børtveit Power Plant – Stord 10 GWh
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Length 1200 m. Height difference 270 m.
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Diameter 0.74 m.
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Full length lining with 0.66 m diameter steel pipe.
2016/2017 Hatlestad Power Plant – Fjærland 15,5 GWh
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Length 1530 m. Height difference 500 m.
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Diameter 0.7 m.
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The tunnel is lined over a distance of 600 m with 0.61 m diameter steel pipe.
2016 Bjåstad Power Plant – Fjærland 16 GWh
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Length 630 m. Height difference 200 m.
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Diameter 0.8 m.
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The tunnel is lined over a distance of 215 m with 0.71 m diameter steel pipe.
2016 Tverrelva Power Plant – Kvinnherad 20 GWh
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Length 685 m. Height difference 330 m.
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Diameter 0.74 m.
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Full length lining with 0.61 m diameter steel pipe.
2015/2016 Storelvi Power Plant – Ullensvang 11,2 GWh
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Length 745 m. Height difference 385 m.
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Diameter 0.7 m.
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Full length lining with 0.61 m diameter steel pipe.
2014/2016 Gjønaelva Power Plant – Fusa 10 GWh
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Length 620 m. Height difference 113 m.
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Pilot hole of 0.7 m. Reaming to a diameter of 1.2 m.
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Equivalent to electricity for about 500 households.
2014/2015 Mølleelva Power Plant – Alta 13,5 GWh
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Two tunnels with the lengths of 745 and 875 m. Height difference 420 m
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Diameter 0.74 m.
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Full length lining with 0.66 m diameter steel pipe.
2015 Selselva Power Plant – Gaular 18 GWh
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Length 975 m. Height difference 380 m.
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Diameter 0.7 m.
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Full length lining with 0.61 m diameter steel pipe.
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Equivalent to electricity for about 900 households.
2014/2015 Byro Power Plant – Ullensvang 11 GWh
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Length 800 m. Height difference 340 m.
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Diameter 0.7 m.
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The tunnel is lined over a distance of 400 m with 0.61 m diameter steel pipe.
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Equivalent to electricity for about 750 households.
2014 Kaldåna Power Plant – Suldal 7,4 GWh
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Length 620 m. Height difference 250 m.
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Diameter 0.74 m.
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Lining with 0.61 m diameter steel pipe.
2013 Reinåga Power Plant – Hemnes 12,8 GWh
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Length 1020 m. Height difference 340 m.
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Diameter 0.7 m.
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Full length lining with 0.61 m diameter steel pipe.
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Equivalent to electricity for about 320 households.
2013 Muoidejohka Power Plant – Beiarn 8,2 GWh
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Length 530 m. Height difference 270 m.
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Diameter 0.7 m.
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The tunnel is lined over full length with 0.61 m diameter steel pipe.
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Equivalent to electricity for about 910 households.
2012 Eitro Power Plant – Fusa 10,9 GWh
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Length 730 m. Height difference 420 m.
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Diameter 0.7 m.
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The tunnel is fully lined with Ø610mm steel pipe.
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Equivalent to electricity for about 545 households.
2011 Kvangreelva Power Plant – Flora 5,5 GWh
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Length 680 m. Height difference 232 m.
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Diameter 0.7 m.
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The tunnel is lined over a distance of 320 m with 0.61 m diameter steel pipe.
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Equivalent to power for about 490 households.
2010 Vågaåna Power Plant – Vindafjord 9,3 GWh
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Two tunnels with the lengths of 170 and 730 m. Total height difference 420 m.
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Diameter 0.7 m.
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The lower tunnel is lined over full length with 0,61 m diameter steel pipe.
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The upper tunnel is lined over a distance at the bottom of about 450 m with 0.61 m diameter steel pipe.
2009 Hommafossen Power Plant – Lund 3,1 GWh
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Two tunnels with the lengths of 70 and 220 m. Total height difference 154 m.
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Diameter 0.7 m.