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Energy concept in Borken district council building: landfill site as energy supplier

Since 1984, Borken district council building has been heated with coal. As coal heating no longer complied with the latest technological standards and was no longer sustainable in terms of environmental policy, the officials responsible looked for an alternative. At the same time, reinvestments were due to take place at the Westmünsterland Waste Disposal Company (EGW) to replace out-dated technology for using the landfill gas at the former municipal waste site in Borken-Hoxfeld. The solution: a six-kilometre-long microgas pipeline from the former municipal waste site to the district council building in Borken

In 2016, the district of Borken installed a new, cutting-edge and energy-efficient combined heat and power unit (CHPU) in its district council building; the plant was supplied with landfill gas from the municipal waste site. The district of Borken therefore utilises the landfill gas, which is created as a result of the decomposition of organic matter on waste sites, to supply heat and electricity directly to the district council building. The district of Borken and the Westmünsterland Waste Disposal Company (EGW) have thus found a follow-up solution for two CHPUs that were urgently in need of renovation, which were used to recover the accruing landfill gas on the former municipal waste site in Borken-Hoxfeld. The landfill gas is transported by means of an approximately six-kilometre-long microgas pipeline from the waste site to the district council building. The landfill gas is therefore used within the town, although it is produced away from the built-up areas.

Engine for progress:

  • Use of landfill gas to supply electricity and heat
  • Development of a long-term overall economic solutionUtilisation of the landfill gas despite the reduction in the amount and quality of the gas

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Photo: Kreis Borken

The newly installed CHPU provides around 75 per cent of the heating and 90 per cent of the electricity required by the district council building in Borken and the neighbouring state police administration building.



The new CHP unit provides around 75 per cent of the heating and 90 per cent of the electricity required by the district council building and the neighbouring state police administration building. The district council building uses eco-power from the grid to cover any additional electricity requirements. Two newly-installed natural gas condensing boilers are switched on to cover times of peak heating demand. Since the CHPU runs continually, the officers responsible also adapted the heating concept of the district council building. Unlike the previous system, the heating does not turn down the temperature in the building at night, but uses the object as a heat storage. Since the waste heat of the CHPU arises continually in base-load operation, the low heat input is now used to prevent the building from cooling down excessively. This reduces the peak heating demand in the morning, which previously occurred to bring the offices up to temperature – and thus also reduces the amount of time that the natural gas boilers are switched on. The project is part of the European Energy Award (EEA) strategy for more climate protection in the Westmünsterland region, which is being pursued by the district of Borken.

Solution for the future included

Since the amount of landfill gas and its energy content decrease over time, a technical solution was already incorporated at the building stage, so that another form of combustible gas, such as biogas, sewage gas or natural gas, could be added to the landfill gas if necessary. Possible connection points close to the municipal sewage works and the property of a neighbouring farmer were already incorporated into the pipeline. By integrating these additional combustible gases, the plant can continue to use the landfill gas to produce electricity and heat even if sole reliance on landfill gas would be no longer possible due to the reduced amount of landfill gas available and its quality.


Photo: Kreis Borken

The district of Borken has committed itself to climate protection in a wide variety of ways – and this begins literally on its own doorstep: the combined heat and power plant is a wise investment from two aspects – on the one hand, the new heating plant pays off economically, and on the other hand, we are making an important contribution to climate protection.

Dr Kai Zwicker, District Administrator of Borken



Partners and sponsors


Partners:
  • Kreis Borken
  • Entsorgungsgesellschaft Westmünsterland mbH
  • Ingenieurbüro H. Berg & Partner GmbH
  • RTS Ingenieurbüro
Sponsors:
  • Andere Förderung