immo!nvest – Die Plattform für Standorte und Immobilien

Tag: Fernwaerme

  • 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.

  • 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.

  • New pipe bridge strengthens regional district heating network

    New pipe bridge strengthens regional district heating network

    BRUGG Pipes from Kleindöttingen, part of the Brugg-based BRUGG Group AG, has supplied pre-insulated district heating pipes for a crossing of the A4 highway. The bridge element between Holzhäusern and Rotkreuz was lifted into place at the end of October, according to a press release. During assembly, two 48-metre-long pipes suitable for bridge structures were installed. They weigh 4.9 tons without water.

    The pipe bridge connects existing and new sections of the Ennetsee heating network. Further districts and commercial locations in Rotkreuz ZG, Cham ZG and neighboring areas are to be connected to the district heating network. The client for the project is WWZ. The company B S AG was responsible for the planning and construction management of the bridge, supported by Hodel SHLK AG as the pipe constructor. “I am delighted with how WWZ, B S, Hodel SHLK and the other partners implemented this project in a spirit of partnership and with the utmost precision. Laying our pipes like this with our own bridge is definitely not an everyday occurrence. I am all the more pleased that the installation was successful and that our pre-insulated pipe systems are now supporting the expansion of the Ennetsee heating network and decarbonization,” said Martin Rigaud, CEO of BRUGG Pipes, in the press release.

    WWZ uses the waste heat from the Renergia waste incineration plant in Perlen LU as a heat source. Cham is also to be supplied with district heating from the project by fall 2026. Overall, the expansion of the network is expected to save around 12,000 tons of carbon dioxide per year.