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Suburban Heat Shift 2 Innovation district heating in agglomeration belts using the example of of the existing quarter “Leeste”: Project phase 2 Implementation

Heating networks play an important role in climate-neutral heat supply. The project aims to provide scientific support for the implementation of a grid-connected supply approach in the center of Leeste in the Lower Saxon municipality of Weyhe just outside of Bremen from a technical, economic and participatory point of view. The planned heating network was developed in a previous concept phase. It is planned as a bidirectional heating network divided into a high and low temperature area. The realization is divided into several expansion stages, whereby the expansion is to be based on a school complex and a new development area. Other existing buildings in the surrounding area are then to be successively connected to the network.

The project scientifically supports the planning and implementation. Furthermore, an adaptable energy management system (EMS) will be developed. The EMS represents the “brain” of the supply system and is intended to ensure the lowest possible CO2 emissions with reasonable heat generation costs during operation. The target values used to optimize plant operation as for example the heat production costs and the CO2 emission should be able to be adjusted as required in order to be able to take into account the preferences of the stakeholders. In addition, a new methodology will be developed to help planners to identify suitable supply areas for fourth-generation heating networks at an early planning stage. Part of the project is also the involvement of stakeholders and future users via surveys and workshops as well as the creation of information sheets. The IÖW takes over the economic analyzes and calculations and is involved in the implementation of the participation formats with stakeholders and citizens.

IÖW Project Team