Energy wells in the valley of Death - Well drilling

Background for the procurement As a part of the development of the future energy system at Gløshaugen, NTNU plans to establish a seasonal thermal energy storage (GeoTermos) in the Valley of Death. The system shall store excess heat from the summer months and deliver heat back in the winter period. The project is for the establishment of a well park with approx. 100 energy wells (approx. 200 m depth) as well as the accompanying pipes and distribution systems. The installations shall be connected to new buildings and a low temperature network. The project has several special challenges: • establishment in an area with demanding ground conditions (quick clay). • Requirements for high operational reliability and a long lifetime. • storage and operation at relatively high temperatures (up to 50-60 °C) • need for good insulation through the uncompacted material layers. • interaction with other energy systems at campus NTNU would therefore like to have a dialogue with the market before the final solution and execution model are chosen.