Energy efficient homes in Nyköping – setting a good example in Europe

Housing cooperative Tullporten in Nyköping has saved so much energy that it is regarded as a good example for the EU directive for more efficient use of energy. The housing cooperative has achieved this thanks mainly to a new district heating substation and the adjustment of flow to the radiators. It is FVB that was given the task of adjusting the flow and as a result more housing cooperatives have enlisted their help.

Tullporten is situated in central Nyköping and consists of three apartment blocks that were built in 1958. Like many other housing cooperatives, running costs are one of the major items of expenditure, something that became very apparent to Jan Törnblom when he took over as chairman of Tullporten.
– I have been a CEO and company owner for most of my working life and have therefore attended many board meetings. When I took over as chairman I saw a huge potential to make improvements. I started to run our meetings in the same way limited companies run their board meetings and everyone on the board was given different areas of responsibility. This was an important part of our work to save energy, Jan Törnblom explains.  

Jan Törnblom undertook to go through the housing cooperative’s income and expenses.
– After that, we entered into a number of new agreements with our suppliers. When it came to heating costs, which was a major item of expenditure, we started to discuss whether we should stick with district heating or switch to geothermal heating but we decided that for technical and financial reasons it was better to stay with district heating. The next step was to look into how we could make our district heating system more efficient, says Jan Törnblom.

Tullporten

The solution was to install a new state of the art district heating substation from NordIQ and sensors were then used to monitor the temperature in every apartment.
– The sensors showed that the temperature in the building was very uneven, with a difference of between 4 and 5 degrees. That meant that while some people froze, others were opening their windows because it was too hot. We needed the system to be adjusted so I contacted a number of heating, water and sanitation companies but none of them managed to solve the problem. We then came into contact with FVB who were able to make the adjustments, which led to some huge savings being made.

FVB consultants Patrik Selinder and Håkan Walletun used remote devices to monitor the flow throughout the entire system.
– By monitoring the temperature in the apartments we could keep track of the flow and make immediate adjustments where necessary. We also had regular contact with NordIQ, which meant that all the measures could be carried out in conformance with the effective control of the district heating substation, says Patrik Selinder before going on to say:
– The cooling process is much better and as customers in Nyköping pay a flow cost, a reduction in flow means a reduction in costs. Furthermore, the low heat losses allow the energy supplier to utilize more of its flue gas, which in turn reduces carbon dioxide emission. Of course it doesn’t amount to much when a single housing cooperative reduces its energy needs, but if many follow suit, the difference can be huge.

For housing cooperative Tullporten, the new district heating substation, the adjustment of flow to the radiators and the installation of energy-efficient taps have led to significant financial savings.
– We now purchase 38 per cent less district heating and all the equipment and consultancy fees will have been repaid in four years – so it has been a really good investment, says a very content Jan Törnblom.

For FVB, the work they did for Tullporten has led to even more contracts with other housing cooperatives, including one close by to Tullporten that has enlisted the help of FVB in order to carry out similar measures.  
– Given the fact that there is often money to be saved and that the measures lead to a more comfortable indoor environment, this should be an important issue for all housing cooperatives. It is fantastic to see the results at Tullporten and we look forward to being able to help others, says Patrik Selinder.  

The result is so good that it is now regarded as a successful example for the EU’s work to make energy more efficient. There is also a huge interest in Sweden and Jan Törnblom will be holding several talks on the subject at housing cooperative fairs in the autumn.
– It is great to be able to talk about our work and how successful we think we have been, says Jan Törnblom.  

 

For further information, contact Patrik Selinder on 0155-20 30 81