immo!nvest – Die Plattform für Standorte und Immobilien

Tag: Waermeverbund

  • New district heating network makes efficient use of waste heat and water from the Rhine

    New district heating network makes efficient use of waste heat and water from the Rhine

    According to a press release, energy supplier AEW Energie AG is investing 8 million Swiss francs in the construction of a district heating network in Augst, in the canton of Basel-Landschaft. According to the company, this sends “a clear signal regarding the implementation of the energy strategy and the consistent expansion of renewable heating solutions”.

    Waste heat from the generators at the existing Augst hydroelectric power station and water from the Rhine are to be used for district heating. It is stated that, via a 1.3-kilometre-long district heating network, the connected buildings will receive CO2-free energy from the start of the 2026/2027 heating season.

    Three heat storage tanks, each with a capacity of 15,000 litres, will ensure a secure supply and reliable, stable operation even during peak loads. According to the press release, the plant’s thermal output is 2 megawatts and is expected to deliver a heat output of 4,400 megawatt-hours once fully operational. This is expected to save 1,200 tonnes of CO2 annually.

    At the start of the construction project with the ground-breaking ceremony on 16 March 2026, the company announced that it was creating a replacement for the AEW Contracting plant in Pratteln, which had been operated using wood pellets and oil. “With the Augst heating network, we are making optimal use of existing energy sources from our own infrastructure and making an important contribution to the decarbonisation of the region’s heat supply,” said Dr Raffael Schubiger, Chairman of the Board of Directors of AEW Energie AG and Kraftwerk Augst AG.

    According to David Gautschi, Head of Production at AEW, the Augst heating network exemplifies how existing energy infrastructure and natural resources can be efficiently combined.

  • Heating network in Aargau to undergo strategic development

    Heating network in Aargau to undergo strategic development

    AEW will take over the Hägglingen Zinsmatten heating network from the municipality of Hägglingen on 1 May, according to a press release. “We are delighted to continue providing reliable heating to the customers of the Hägglingen Zinsmatten heating network and to work together to develop the plant in a sustainable manner,” said Daniel Wernli, Head of Heat Production at AEW.

    The heating network, which has been in operation since 2007, supplies heat to 30 properties. Wood chips are used as the primary energy source. The plant’s wood boiler has an output of 450 kilowatts, and an oil boiler is also available. AEW estimates the average annual energy consumption at around 1,100 megawatt hours.

    With the Hägglingen Zinsmatten heating network, AEW now operates a total of 78 such plants in the canton of Aargau and neighbouring regions. The production capacity is more than 240 gigawatt hours per year, supplying a total of 17,000 households.

  • New heating network combines climate protection and regional value creation

    New heating network combines climate protection and regional value creation

    The Maisprach heating network in the canton of Basel-Landschaft and the Basel-based energy supplier IWB have launched a new project to supply heat from regional raw materials. Since the beginning of December, energy has been generated from a wood-fired boiler and a biochar plant and fed into the heating network, according to a press release.

    The municipality of Maisprach laid the foundations for this step in January 2025 with the construction of a new depot. IWB initially set up new wood heating systems there. This was followed in November by the construction of the biochar plant. Every year, 250 tonnes of biochar are to be produced here from landscape conservation wood and biomass through pyrolysis. The waste heat from the charcoal production will be fed into the district heating network. The operators anticipate 900 megawatt hours of heat energy for network customers, with a further expansion of the network on the horizon. The wood-fired boiler is also fuelled by regional biomass. The biochar produced is used in the region as an additive for composting, in soil substrates and in agriculture. IWB invested CHF 3.5 million in the project.

    “IWB has experience in the construction and operation of heating plants. As part of a pilot project in Basel, IWB tested the innovative approach of utilising waste heat from a biochar plant in a heating network. We can now benefit from this,” said Dorian Wernli, Mayor of Maisprach, in the press release.