immo!nvest – Die Plattform für Standorte und Immobilien

Tag: Seewassernutzung

  • New energy network to support the city of Wädenswil’s net-zero target

    New energy network to support the city of Wädenswil’s net-zero target

    Energie 360° and the city of Wädenswil want to contribute to the city’s net-zero target with an energy network. Specifically, the plan is to utilise the water of Lake Zurich to generate renewable heat, the Zurich-based energy supplier announced in a press release. To this end, the two partners intend to set up Energieverbund Wädenswil AG, in which the city of Wädenswil will hold a 51 per cent stake and Energie 360° a 49 per cent stake.

    On 9 February, the voters of Wädenswil gave the green light to the plans to establish the energy association with 66.04 percent of the votes, according to the press release. “The city of Wädenswil is investing in the future,” city mayor Philipp Kutter is quoted as saying. “A clean energy supply benefits everyone and reduces our dependence on fossil fuels.”

    The plans include two underground energy centres in the new Gessner site and at the Rietlau car park. Excess waste heat from the Rietlau wastewater treatment plant will also be used in the second energy centre. Energie 360° also wants to integrate its Untermosen heating network, which has been in operation in Wädenswil since 2011, into the new network.

    “Utilising the locally available energy from Lake Zurich for the energy supply makes ecological and economic sense,” says Energie 360° CEO Jörg Wild. If everything goes according to plan, the first customers will be able to obtain renewable heat from the network as early as 2026. In its final stage, the network is expected to avoid emissions of around 15,000 tonnes of CO2 per year.

  • Lake Biel supplies energy for Nidau and Biel

    Lake Biel supplies energy for Nidau and Biel

    Energieverbund Bielersee AG is supplying energy to customers in Nidau and Biel for the first time, according to a press release. To this end, the intermediate circuit connecting the pumping station on Dr. Schneiderstrasse with the energy centre in the Alpha building in Nidau has been constructed in recent weeks.

    The lake water reaches the pumping station via two pipes at depths of 20 and 30 metres. In the energy centre, heat pumps are used to produce hot water for heating systems that are connected to the heating network. The cold, in turn, is channelled via a separate network to the Robert-Walser-Platz area near Biel railway station. A peak load boiler is available for cold days.

    The plans for the use of lake water date back to 2015. in 2020, Energie Service Biel/Bienne founded Energieverbund Bielersee AG, in which the city and the Burgergemeinde Nidau are now also shareholders. The lake pipelines were laid in March 2022 and the shell of the pumping station was completed the following May. In future, the energy centre is to be renovated and the heating network extended towards Ipsach.

  • Heat concept from waste incineration and heat from the lake is being examined

    Heat concept from waste incineration and heat from the lake is being examined

    According to a press release , the energy supply companies Energie Kreuzlingen , Stadtwerke Konstanz , the KVA Thurgau association from Weinfelden TG and EKT AG from Arbon TG want to join forces in order to use new heat sources more optimally in a cross-border alliance.

    A heat supply concept is being considered in which the use of CO2-neutral waste heat from the waste incineration plant of the KVA via district heating line and seawater heat from the Constance funnel are combined.

    The four partners called in Swisspower AG to examine the feasibility of the project from a technical, economic, legal and organizational point of view. A result is expected in the course of the year.

    Swisspower supports municipal utilities and energy suppliers with cooperation initiatives, consulting services and networking offers on the way to energy systems without CO2 emissions.