Renewable Energy from Hydropower

Through renewable energy and forward-looking customer solutions, NTE's employees will realize our vision of contributing to a climate-neutral and digital Trøndelag. We have been delivering renewable energy for over 100 years. The transition to a renewable society requires increased production of clean and renewable energy, which is an essential part of the solution to the climate challenge.

The Nye Nedre Fiskumfoss is a modern hydropower plant in Grong municipality, Trøndelag. It utilizes a fall of 24 meters in the Namsen river and was put into operation in 2024. The power plant has an installed capacity of 90 MW distributed over 2 Kaplan turbines and produces around 376 GWh annually.

Annual production: 463 GWh

The power plant draws water from the Tevla power plant and from the Grønberg dam, which is regulated between 359 and 350 meters above sea level. Water is also drawn from Torsbjørka, Fossvatnet, and Dalåa.

The power plant has an installed capacity of 87 MW distributed over two Francis turbines. The average annual production is 463 GWh.

The fall height is 260 meters.

Annual production: 813 GWh

Production started in 1963. The power plant is built into the mountain.

The power plant utilizes the fall between Tunnsjøflyan and Namsen. Tunnsjøflyan is regulated between 348 and 345 meters above sea level. The Tunnsjø river is regulated as a result of the power plant.

The power plant has an installed capacity of 176 MW. Tunnsjøen, Limingen, and Namsvatnet are used as reservoirs for the power plants in the Namsen river system.

Annual production: 145 GWh Production started in 1971.

Bogna power plant is a hydropower plant in Snåsa municipality in Trøndelag. The plant is located in the mountain. The power plant utilizes the fall from Bangsjøan to Snåsavatnet. Bangsjøan can be regulated between 315 and 305 meters above sea level. The Bogna river has reduced water flow as a result of the regulation. Water is also drawn from a river intake.

The power plant has an installed Francis turbine with a capacity of 56 MW. The average annual production is 145 GWh.

Annual production: 202 GWh Built between 1954–58

Aunfoss power plant is a hydropower plant in Namsen in Grong municipality in Trøndelag. It utilizes a fall of 28 meters in Namsen at Aunfoss/Breifoss and is a pure river power plant. The power plant has installed two Francis turbines with a total capacity of 28 MW. The average annual production is 202 GWh.

Tunnsjøen, Limingen, Namsvatnet, etc. are used as reservoirs for the power plants in the Namsen river system.

The power plant is owned and operated by Nord-Trøndelag Elektrisitetsverk.

Annual production: 28 GWh The power plant is owned and operated by Nord-Trøndelag Elektrisitetsverk and was completed in 1955.

Brattingfoss power plant is a hydropower plant in Steinkjer municipality in Trøndelag. The power plant utilizes a fall in Støkkevedelva from Holden to Follavatn.

Holden is dammed, and the reservoir is regulated between 300.6 and 290.6 meters above sea level. The dam is from the late 1930s and was rehabilitated in 2020. The power plant has an installed Francis turbine with a capacity of 11 MW. The average annual production is 28 GWh. It is a combined power and pump plant. Follavatn is a small reservoir, so during flood periods, water is pumped up into the larger reservoir Holden.

The water is later used in the Follafoss power plant.

Annual production: 36 GWh The power plant from 1936 was demolished and replaced by a completely new facility in 2018.

Production has increased from 20 to 36 GWh. Byafossen power plant is a hydropower plant in Steinkjer municipality in Trøndelag.

It is a river power plant that utilizes a fall of 8 meters in Byaelva at the outlet of Reinsvatnet. Installed capacity is 6 MW from two Kaplan turbines.

The average annual production is 193 GWh. The facility was put into operation in 1923.

The power plant utilizes a fall in Follaelva from Follavatn to sea level in Beitstadfjorden. Follavatn is dammed and regulated between 182.1 and 172.6 meters above sea level. Parts of the water in Brattreitelva are also transferred to Follavatnet. Strømsetervatnet is also used as a reservoir for the plant, and it can be regulated between 259.4 and 252.4 meters above sea level.

The power plant has an installed Francis turbine with a capacity of 48 MW. Water is drawn from the intake tunnel for water supply to Follafoss.

Annual production: 70 GWh. The old power plant from 1938 was taken over by NTE in connection with the reversion from Meraker smelteverk in 1988.

The power plant draws water from Funnsjøen, which is regulated between 442 and 430.5 meters above sea level. Water is also drawn from a stream intake. The fall height is 341 meters. The catchment area of the plant is 64.3 km². The reservoir content is 64 million m³. The power plant has an installed capacity of 20 MW on a vertical Francis turbine. The average annual production is 70 GWh.

In 2007, a new power plant was built inside the mountain, and the old one was demolished. The water is led through an 1800-meter supply tunnel and a 125-meter-long pressure shaft. After the water has passed through the turbine, it is led through an 860-meter-long outlet tunnel and canal to Funna, where the old power plant was located.

Annual production: 96 GWh. Production started in 1984.

It utilizes a fall of 209 meters in the Mossavassdraget from Meltingvatnet to sea level in the Trondheimsfjord. Meltingvatnet can be regulated between 195 and 216 meters above sea level.

The power plant has an installed Francis turbine with a capacity of 37 MW. The average annual production is 96 GWh. The power plant is not operated according to the maneuvering regulations from April 15 to August 31, except when the water level in Meltingen exceeds 215.50 meters above sea level. A separate reservoir has been established in Åfjorden to ensure minimum water flow and attraction floods in the watercourse. Water is also drawn from Ålvatnet in the Kalddalselvvassdraget.

Annual production: 75 GWh. Completed in 1988.

The power plant utilizes a fall in Moldelva from Ormsetvatnet to sea level in Verrasundet.

The plant uses Ormsetvatnet as a regulation reservoir. Ormsetvatnet is dammed by an embankment dam consisting of 100,000 m³ of moraine masses. The reservoir is regulated between 388 and 375 meters above sea level. Water is also transferred from Raudtindelva to Buavatnet. From here, water is pumped up to Ormsetvannet. Buavatn pumping station has 3 pumps of 2 MW, totaling 6 MW capacity.

The power plant has an installed Francis turbine with a capacity of 40 MW. The average annual production is 75 GWh.

Annual production: 88 GWh. Production started in 1965.

The power plant utilizes the fall between Vektaren and Limingen.

Namsvatnet is also used as a regulation reservoir. Namsvatnet was originally three lakes before regulation, which were dammed 14 meters. The Namsvassdammen was put into use in 1952. The water in Namsvatn originally flowed down Namsen but was transferred to Vektaren, Limingen, and finally Tunnsjøen before flowing back into Namsen via Tunnsjødal Power Plant and into Kvarnbergsvattnet via Linvasselv Power Plant and Linvasselva.

The power plant has an installed capacity of 16 MW from a Kaplan turbine. The average annual production is 92 GWh.

Annual production: 75 GWh. The plant was put into production in 2018.

It is a river power plant that utilizes a fall of 124 meters in Storåselva.

Installed capacity is 25.5 MW from three Francis turbines. Annual production is 75 GWh.

Annual production: 10 GWh. Production started in 1998.

Sundfossen Power Plant is a hydropower plant in Steinkjer municipality in Trøndelag. It is a river power plant that utilizes a fall of 4 meters from Snåsavannet to Fossemvatnet.

Installed capacity is 2.2 MW.

Annual production: 107 GWh. Production started in 1994.

The power plant draws water from three stream intakes on the mountainside above Tevladalen and from the regulation reservoir Fjergen. The reservoir is regulated between 514 and 498 meters above sea level. In the tunnel from Fjergen to the power station, water is also drawn from the Litlåa river. The fall height is 165 meters.

The power plant has an installed capacity of 40 MW. The average annual production is 107 GWh. The power plant is a pumped storage plant and can pump water back into the reservoir for later use.

Annual production: 145 GWh. Production started in 1963.

The power plant utilizes the fall from Limingen to Tunnsjøen and is built inside the mountain. The power plant has an installed capacity of 31 MW. The average annual production is 143 GWh.

Tunnsjøen, Limingen, and Namsvatnet are used as reservoirs for the power plants in the Namsen watercourse.

Annual production: 29 GWh. Production started in 1986.

Tunnsjøfoss Power Plant is a hydropower plant in the Namsen watercourse in Røyrvik municipality in Trøndelag. The power plant utilizes the fall between Tunnsjøen and Tunnsjøflyan. Installed capacity is 7 MW. The average annual production is 29 GWh.

Tunnsjøen, Limingen, and Namsvatnet are used as reservoirs for the power plants in the Namsen watercourse.

Annual production: 49 GWh. Production started in 1976.

The power plant utilizes a fall in Namsen and is a pure river power plant. The power plant has installed 1 Kaplan tube turbine with a capacity of 7.6 MW. The average annual production is 49 GWh.

Tunnsjøen, Limingen, Namsvatnet, etc. are used as reservoirs for the power plants in the Namsen watercourse.

Average annual production is 75 GWh. Production started in 1971.

The power plant utilizes the fall in Åsmulfoss and is a pure river power plant. The power plant has installed a Kaplan tube turbine with a capacity of 12 MW.

Tunnsjøen, Limingen, Namsvatnet, etc. are used as reservoirs for the power plants in the Namsen watercourse.

Average annual production is 200 GWh. The power plant was built in 1962.

Linvasselv Power Plant is a hydropower plant in Lierne municipality in Trøndelag. The power station itself is located at Kvarnbergsvattnet in Sweden. It is co-owned by NTE and Fortum.

The power plant utilizes a fall of 108 meters in Linvasselv from the lake Limingen. It is built inside the mountain.

Average annual production is 504 GWh. The plant is built inside the mountain in 1979.

Hydropower plant in Bindal municipality in Nordland, which utilizes the fall of 519 meters from Øvre Kalvvatn.

The outlet from the power station has a special construction that sends the water out at great depth in Tosenfjorden to achieve good mixing with the seawater and prevent ice formation.

Renewable Energy

Nye Nedre Fiskumfoss

Meråker kraftverk

Tunnsjødal kraftverk

Bogna kraftverk

Aunfoss

Brattingfoss kraftverk

Byafossen kraftverk

Follafoss kraftverk

Funna kraftverk

Mosvik Power Plant

Ormsetfoss kraftverk

Røyrvikfoss kraftverk

Storåselva Power Plant

Sundfossen kraftverk

Tevla kraftverk

Tunnsjø Power Plant

Tunnsjøfoss

Øvre Fiskumfoss kraftverk

Åsmulfoss kraftverk

Linvasselv kraftverk

Kolsvik kraftverk