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Field of activity: "Environment":

Feasibility Study "Local Solar Thermal Supply"
City: Münster
Field of activity: Precautionary Environmental Protection
Project description:
The feasibility study deals with the possibilities of the application of an integrated, solar oriented concept of local solar thermal supply in a newly built-up area. Apart from the technical application and innovative solutions, it is important that the individual systems of thermal heat supply are embedded in a system of central stored solar created heat. In this context, the potential of ground storage will be examined.

Solar Energy Supply, Solar Roof
In an initial step, the possibilities for application in various neighborhoods in Münster were analysed generally. In a second step, the concept will be implemented in one area. Furthermore, the question of transferring these findings to other new building blocks and anchoring them in the overall municipal planning system will be examined. At this point, the linkages between the central local thermal supply system to other, decentralised thermal supply systems is of particular importance.
The analysis was carried out in the new neighborhood "Coerde, Hoher Heckenweg" which shows well qualified for a local solar thermal supply.
On basis of a meanwhile generated urban design study several versions of solar-supported thermal supply were compared with a conventional long-distance heating supply system.
Besides a potential CO2-reduction by 35 to 60% which could have been resulted from an increased heat insulation and the installation of solar energy supply systems it was asserted that only with central solar systems a surplus of solar thermal energy beyond the actual daily demand could be generated and stored.
Storage of thermal energy would be easier and cheaper with a multi-day storage system compared to a long-term storage device. The additional costs in comparison to a long-distance heating system including decentralised solar systems would be acceptable.
Current status: The examination of the area to be tested with regard to the construction of a local solar thermal supply will be carried out in the summer of 2000 after the urban building structures have been made concrete.
Contact: Birgit Wildt, tel. +49-251-492-6703, Office of the Environment
Contractors: STZ - Steinbeis Transferzentrum, Stuttgart
Duration: 5/1999 - 8/2000
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