immo!nvest – Die Plattform für Standorte und Immobilien

Tag: Nachhaltige Energie

  • Airport tests water reservoir under glacial channel

    Airport tests water reservoir under glacial channel

    Flughafen Zürich AG is starting the construction of a second test well in an ice-age channel located around 300 meters below the airport site, the airport operator announced in a press release. It plans to use the water-bearing channel as a heat and cold reservoir for emission-free heating and cooling of the airport building. A test well installed last fall had already delivered promising results.

    “The volumes of water that could be pumped and the flow rate of the water give us further confidence that the channel can be used to store heat and cold,” said Guido Hüni, Head of Energy and Decarbonization at Flughafen Zürich AG, in the press release. “Further tests are now needed to determine the extent to which this storage facility can be used.”

    A suitable location for the second well is currently being sought. Once installed, it will be connected to the first well for circulation tests. “This next step will allow us to test the efficiency of such a storage facility and, if the results are positive, we can then plan the actual expansion,” explains Hüni.

    The airport operator is counting on being able to cover the majority of the heating and cooling requirements for the airport building via the channel. Depending on the yield, the water reservoir could be combined with geothermal probe fields. The estimated cost of the investment is stated in the press release as around CHF 8 million. Flughafen Zürich AG can rely on financial support from the Swiss Federal Office of Energy.

  • District heating network in the canton of Aargau is growing

    District heating network in the canton of Aargau is growing

    Regionalwerke AG Baden(RWB) has acquired the shares of AEW Energie AG in Aarau in Fernwärme Siggenthal AG(FWS), according to an ad hoc announcement. In doing so, RWB intends to expand its commitment to sustainable energy supply in the region. AEW Energie specialises in solar power in the canton of Aargau. The sale price was not disclosed.

    RWB has reportedly been working successfully with FWS for many years. The acquisition of the 27.3 per cent stake in FWS is intended to deepen the partnership. FWS, which is based in Nussbaumen, is stable and financially independent and has developed very positively over the last few years since it was founded. It therefore describes RWB as an ideal partner.

    “The investment in Fernwärme Siggenthal AG fits in perfectly with RWB’s activities in the area of district heating,” Managing Director Michael Sarbach is quoted as saying. “Both companies attach great importance to the further expansion of district heating in the region.” Adrian Hitz, Chairman of the FWS Board of Directors, refers to the good cooperation with RWB to date: “Now that AEW has decided to sell its shares, we are relieved that we already know the future shareholder well, as we have already developed and realised a very good project together with the SIBANO connecting pipeline.” SIBANO is a 3.3 kilometre long district heating transport pipeline from the Turgi waste incineration plant to the Baden Nord heating centre.

  • WWZ begins construction of heat pipeline to Cham

    WWZ begins construction of heat pipeline to Cham

    The Ennetsee heating network will supply Rotkreuz, Bösch, Hünenberg See, Cham, Städtler Allmend, Äussere Lorzenallmend, Zug and Steinhausen with CO2-neutral heat energy from the Renergia waste incineration plant in Perlen LU. To this end, WWZ AG is now extending the district heating pipeline from Rotkreuz to Cham, according to a press release.

    In spring 2024, the installation areas for the pipelines will first be created for the Rotkreuz to Cham section. Construction will take place in stages. The pipes must be pre-stressed to prevent uncontrolled expansion. “We expect to complete the Rotkreuz-Cham stage in autumn 2026 and supply as many properties as possible with sustainable district heating,” Marcel Fähndrich, Head of Energy at WWZ, is quoted as saying in the press release.

    WWZ already commissioned the transport pipeline from Perlen to Rotkreuz in summer 2023. Some lines are already in operation in Rotkreuz. From spring 2024, the swimming pool and some private buildings and municipal properties can be heated with heat from the waste incineration plant.

    The Ennetsee heating network project aims to save 12,000 tonnes of CO2 per year in the future.