Skip to main content

Science – Society – Technology

Geothermal Energy Cover Image

Table 1 Serious damage events (>500,000 Euros) of vertical GSHP projects in Germany

From: Damage event analysis of vertical ground source heat pump systems in Germany

Location State Year Damage in million (Euros) Causes and effects
Wurmlingen Baden-Württemberg 2002 0.5–1 Subrosion of sulphate-bearing layers due to connection of aquifers resulting in subsidence
Rudersberg Baden-Württemberg 2007 1–10 Ingress of ascending/descending groundwater into anhydrite-bearing layers resulting in ground heaves at the surface
Staufen Baden-Württemberg 2007 >50 Ingress of ascending groundwater into anhydrite-bearing layers resulting in ground heaves at the surface
Böblingen Baden-Württemberg 2008 >50 Ingress of descending groundwater into anhydrite-bearing layers resulting in ground heaves at the surface
Schorndorf Baden-Württemberg 2008 1–10 Connection of aquifers with descending groundwater potential due to a leaky backfilling. Land subsidence due to decreasing groundwater level
Kamen-Wasserkurl North Rhine-Westphalia 2009 1–10 Drilling into karst structures. Descending, vertical groundwater flow, and material transfer. Sinkhole and subsidence at the surface
Wiesbaden Hesse 2009 0.5–1 Tapping of an artesian aquifer. Flooding at the surface
Leonberg Baden-Württemberg 2011 1–10 Connection of aquifers with descending groundwater potential due to a leaky backfilling. Land subsidence due to decreasing groundwater level
Rottach-Egern Bavaria 2016 >0.5 No specific causes are identified yet