© 2019 by Norhard AS

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Reference list

2019 Gudå Power Plant - Meråker

  • Length: 550 m. 

  • Diameter: 1,2 m

  • Full length lining with 0.914 m diameter steel pipe

2018 Langneset Åga Fresh Water supply - Mo i Rana

  • Two tunnels with the lengths of 930 and 170 m. Total height difference 52 m.

  • Diameter 0,7 m

2018 Erstmyr District Heating - Tonstad

  • Length 575 m. Height difference 120 m.

  • Diameter 0,7 m.

  • Full length lining with 0,56 m diameter district heating pipes.

2017/2018 Grytendal Power Plant – Bindal 21,8 GWh

  • Length 560 m. Height difference 155 m.

  • Diameter 1,5 m.

  • Full length lining with 1,4 m diameter steel pipe.

  • Equivalent to electricity for about 1090 households.

2017 Gjeitåni Power Plant – Voss 17,3 GWh

  • Length 330 m. Height difference 100 m.

  • Diameter 1,2 m.

  • Full length lining with 0,914 m diameter steel pipe.

2017 Tenneelva Power Plant – Vanylven 10,3 GWh

  • Length 485 m. Height difference 240 m.

  • Diameter 0,74 m.​

2017 Steinvik Hatchery – Fresh water for smolt plants.

  • Length 245 m. Height difference 16 m.

  • Diameter 1,1 m.

2016/2017 Børtveit Power Plant – Stord 10 GWh

  • Length 1200 m. Height difference 270 m.

  • Diameter 0,74 m.

  • Full length lining with 0,66 m diameter steel pipe.

2016/2017 Hatlestad Power Plant – Fjærland 15,5 GWh

  • Length 1530 m. Height difference 500 m.

  • Diameter 0,7 m.

  • The tunnel is lined over a distance of 600 m with 0,61 m diameter steel pipe.

2016 Bjåstad Power Plant – Fjærland 16 GWh

  • Length 630 m. Height difference 200 m.

  • Diameter 0,8 m.

  • The tunnel is lined over a distance of 215 m with 0,71 m diameter steel pipe.

2016 Tverrelva Power Plant – Kvinnherad 20 GWh

  • Length 685 m. Height difference 330 m.

  • Diameter 0,74 m.

  • Full length lining with 0,61 m diameter steel pipe.

 

2015/2016 Storelvi Power Plant – Ullensvang 11,2 GWh

  • Length 745 m. Height difference 385 m.

  • Diameter 0,7 m.

  • Full length lining with 0,61 m diameter steel pipe.

2014/2016 Gjønaelva Power Plant – Fusa 10 GWh

  • Length 620 m. Height difference 113 m.

  • Pilot hole of 0,7 m. Reaming to a diameter of 1,2 m.

  • Equivalent to electricity for about 500 households.

2014/2015 Mølleelva Power Plant – Alta 13,5 GWh

  • Two tunnels with the lengths of 745 and 875 m. Height difference 420 m

  • Diameter 0,74 m.

  • Full length lining with 0,66 m diameter steel pipe.

2015 Selselva Power Plant – Gaular 18 GWh

  • Length 975 m. Height difference 380 m.

  • Diameter 0,7 m.

  • Full length lining with 0,61 m diameter steel pipe.

  • Equivalent to electricity for about 900 households.

 

2014/2015 Byro Power Plant – Ullensvang 11 GWh

  • Length 800 m. Height difference 340 m.

  • Diameter 0,7 m.

  • The tunnel is lined over a distance of 400 m with 0,61 m diameter steel pipe.

  • Equivalent to electricity for about 750 households.

2014 Kaldåna Power Plant – Suldal 7,4 GWh

  • Length 620 m. Height difference 250 m.

  • Diameter 0,74 m.

  • Lining with 0,61 m diameter steel pipe.

2013 Reinåga Power Plant – Hemnes 12,8 GWh

  • Length 1020 m. Height difference 340 m.

  • Diameter 0,7 m.

  • Full length lining with 0,61 m diameter steel pipe.

  • Equivalent to electricity for about 320 households.

2013 Muoidejohka Power Plant – Beiarn 8,2 GWh

  • Length 530 m. Height difference 270 m.

  • Diameter 0,7 m.

  • The tunnel is lined over full length with 0,61 m diameter steel pipe.

  • Equivalent to electricity for about 910 households.

2012 Eitro Power Plant – Fusa 10,9 GWh

  • Length 730 m. Height difference 420 m.

  • Diameter 0,7 m.

  • The tunnel is fully lined with Ø610mm steel pipe.

  • Equivalent to electricity for about 545 households.

2011 Kvangreelva Power Plant – Flora 5,5 GWh

  • Length 680 m. Height difference 232 m.

  • Diameter 0,7 m.

  • The tunnel is lined over a distance of 320 m with 0,61 m diameter steel pipe.

  • Equivalent to power for about 490 households.

2010 Vågaåna Power Plant – Vindafjord 9,3 GWh

  • Two tunnels with the lengths of 170 and 730 m. Total height difference 420 m.

  • Diameter 0,7 m.

  • The lower tunnel is lined over full length with 0,61 m diameter steel pipe.

  • 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

  • Two tunnels with the lengths of 70 and 220 m. Total height difference 154 m.

  • Diameter 0,7 m.​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​