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Liåsen substation

New substation at Liåsen in Oslo.

Increased power consumption in southern Oslo is expected, as a result of urban densification in southern Oslo, population growth in Follo and a new converter at Åsland in connection with the new Follo railway line. Residential development plans in the Gjersrud-Stensrud area could also contribute to increased consumption. This is why a new substation in the area is necessary. Statnett initially presented concrete plans for a new substation at Liåsen in the alternative analysis for the Greater Oslo Grid Plan in 2012. The substation will connect Statnett’s existing 420 kV line with Hafslund Nett’s lines and cables. This is an effective way to strengthen the power supply for southern Oslo and parts of Follo in the future.

Statnett has applied for a licence for the substation. Licences in the energy sector are processed in accordance with the Energy Act.

  • The assessment work for Liåsen has started

    Capacity in the main grid that supplies people in Oslo with electricity is about to run out. At the same time, consumption of electricity is increasing. Liåsen substation will provide consumers wit …

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Frequently asked questions

  • Why do we need Liåsen substation?

    Capacity in the main grid that supplies people in Oslo with electricity is about to run out. At the same time, consumption of electricity is increasing. Liåsen substation will provide consumers with a reliable power supply in the future, and facilitate population growth, urban development and public transport.

     

    Since 1990, only minor investments have been made in the Greater Oslo main grid. At the same time, electricity consumption has increased by 30 per cent. Now consumption has increased so much that the spare capacity in the main grid is about to be depleted. Electricity consumption is expected to increase further in the years to come. The capacity of the current main grid is insufficient to cover the future electricity consumption.

     

    Liåsen substation is necessary to ensure a reliable supply of electricity to Oslo South and parts of Follo in the future. Electricity consumption in the area has grown in recent years and is expected to continue to increase in the future. One reason for this is the development plans for Gjersrud-Stensrud. The Norwegian National Rail Administration is also planning a new converter station which will need electricity supply when the Follo railway starts operating.

     

    A new substation in south Oslo has long been on the planning board.  Statnett first presented specificplans for a new substation at Liåsen in the alternatives analysis for the Greater Oslo Grid Plan in 2012. Liåsen substation will connect Statnett's 420 kV power lines with Hafslund Nett's power lines and cables. This is an efficient way to increase capacity to the area. 

  • What are the benefits of Liåsen substation?

    The overall Greater Oslo Grid Plan consists of 30 different measures. When all measures have been completed, the grid will have capacity to transport about 60 per cent more electricity. At the same time, we can demolish around 300 kilometres of power lines. This will facilitate a more reliable electricity supply and sound climate solutions. Furthermore, it will free up areas and give a more energy-efficient power grid where less electricity is lost on its way to the consumers. 

  • What will Statnett assess now?

    Statnett has started assessing alternative locations for Liåsen substation. In this connection, we will conduct fieldwork in the area. We will also initiate dialogue with the authorities and various special interest organisations.

     

    The assessment work is important to acquire sufficient knowledge to ensure well-founded assessments and a sound decision-making basis. We will map the technical solution, buildings, infrastructure, roads and the environment, assess preparedness and risks to the surroundings, and make economic assessments. 

  • Where will the substation be located?

    The substation will be located in the south of Oslo, near Liåsen which is in the vicinity of Klemetsrud/Grønmo. The exact location of the new substation has not been determined yet. Statnett is assessing various location alternatives. How the location will affect the surroundings is an important part of the assessment basis. One or more of the alternatives will form the basis for a licence application. 

  • When will you submit the licence application?

    Statnett applied for a licence from the Norwegian Water Resources and Energy Directorate (NVE) for Liåsen substation in 2016. 

  • How can people provide input?

    After Statnett has applied for a licence for Sogn substation, the NVE will submit the licence application for consultation. The NVE will conduct public meetings in connection with the licence application, and Statnett will attend these meetings.