Follower site for Aquifer Thermal Energy Storage (ATES).
In the southeast of Berlin, we will implement a high-temperature Aquifer Thermal Energy Storage (ATES) system. It will be integrated into the existing district heating network of BTB, which is the second largest heat provider in the German capital. We aim to do the following:
The planned ATES will be integrated with an existing heating network with a total length of around 170 km and operating supply line temperatures of 95-115°C and return temperatures of 55-65°C. The target charging temperature for the ATES is 90° which is a novelty for the considered storage horizon. The discharging heat in wintertime can be transferred directly to the net to preheat the return line. In addition, it is planned to couple the ATES with a large heat pump to bring the temperature level of the produced groundwater to the network temperature level and to cool down the storage water before injection close to the natural aquifer temperature. Furthermore, it is planned to couple the ATES loop with the “waste heat” side of a large compression chiller that will supply a local cooling network. This is the first step towards the objective to combine different renewable or waste heat sources with different time characteristic, which will be much more important in the future to decarbonise the heating network and will provide important knowledge for the management of different heat sources.
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PUSH-IT is a project funded by the European Union’s Horizon Europe research and innovation programme under grant agreement No 101096566.
Funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union. Neither the European Union nor the granting authority can be held responsible for them.
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