2 pcs. Test wells for energy storage, conveyor systems, infiltration lines.

Construction of 2 deep wells as test drillings as part of the pilot project for aquifer heat storage on the Dradenau sewage treatment plant site. Both wells PB 1 and PB 2 were expanded at the same time with stainless steel filters DN 100/VA, solid wall pipes DN 100 GRP and DN 300 V4A. After the two wells were completed, infiltration lines and conveyor systems were installed. Hot water is pressed into both wells for experimental purposes.