immo!nvest – Die Plattform für Standorte und Immobilien

Tag: Grundwasser

  • Olten-Trimbach heating network starts after approval from the cantonal hospital

    Olten-Trimbach heating network starts after approval from the cantonal hospital

    Aare Energie AG(a.en) and IWB are tackling the realisation of a heating network in the Hagmatt border area between the Solothurn municipalities of Olten and Trimbach. The partner companies had made the realisation of the plans for extracting thermal energy from the groundwater dependent on the involvement of Olten Cantonal Hospital. This key customer has now agreed to participate, a.en and IWB announced in a joint press release.

    A.en and IWB intend to start construction work on the heating network as early as next year. Its network length is expected to be 6 kilometres. A new heating centre in the Dellen drinking water pumping station is named in the press release as the heart of the system. Two heat pumps, each with an output of around 2.5 megawatts, will extract heat from the groundwater here.

    According to the press release, the provision of heat from groundwater can also be guaranteed at low water temperatures in winter. The annual heat output of the plant is estimated at 20 gigawatt hours. Interested parties who have already requested an indicative offer should now receive concrete offers and be able to conclude contracts. The partners expect the first heat deliveries from 2027.

  • City of Zurich wants to reduce heat

    City of Zurich wants to reduce heat

    The city of Zurich is reacting to the heat waves of the past summer and wants to arm the city for future temperature-related stresses. On the one hand, measures are planned to be implemented in new construction projects. And on the other hand, the principle of the sponge city is to be implemented in pilot projects, as can be seen in a communication.

    This principle was developed to minimize flooding. To this end, rainfalls in the city are to be held back like a sponge and only gradually channeled into the water and groundwater. However, this principle is also intended to reduce global warming in Zurich. To this end, part of the Giessereistrasse in Zurich has been converted in a pilot project. For the sponge city principle, many factors such as the gradient of the road, the road surface, permeable curbs and lockable mud collectors must be taken into account. The aim is to ensure that rainwater only runs into the sewer system in winter. In the rest of the year, it should be diverted into the vegetation, where it slowly evaporates and thus contributes to cooling. At the end of the structural work, nine new trees have now been planted.

    The project, which will cost 680,000 francs, is currently designed for the period up to 2024. The Zurich University of Applied Sciences (ZHAW) ensures scientific monitoring.