Fig. 5From: City-scale heating and cooling with aquifer thermal energy storage (ATES)Exemplary box models of two 2-doublet ATES systems in the Neuenburg Formation in hydrogeological region 1 (left) and hydrogeological region 2 (right). The TAZ around the ± 0.5 K-isotherms after 30 years of operation are highlighted. The smaller ± 1 K-isotherms are also shown (black solid lines)Back to article page