The core activity of HI ENERGY AG is the development and implementation of sustainable, cost-effective and fail-safe energy sources through the use of geothermal energy. The company offers a turnkey solution for energy supply based on an open geothermal borehole (OEWS) that utilizes convective heat transport to extract heat from the earth's crust. The core activities include consulting, geothermal resource assessment, feasibility studies, regulatory consulting, site selection and the implementation of energy concepts that are decentralized, emission-free, location-independent and low-maintenance.