Cold local heating network with geothermal energy in Reppenstedt

The housing market is considered to be tight in many regions of Germany. There is also a high demand for new builds in the municipality of Reppenstedt. In addition to the issue of the tight housing market, the aspect of sustainability is also playing an increasingly important role in many new construction projects. The "Schnellenberger Weg" neighbourhood is to be supplied with heating and cooling energy via a cold local heating network. A significant proportion of the energy is to be covered by geothermal energy. To this end, a geothermal probe field was planned for the base load supply and is currently being realised.

The geothermal probe field, consisting of 60 probes with a respective probe depth of 150 m, has a total of 9,000 metres of drilling and probes. In winter, heat is extracted from the ground for heating purposes, thus lowering the temperature underground. In the summer months, on the other hand, the temperature in the ground is actively raised again so that sufficient heating energy is available for the coming heating period.

The temperature changes in the subsurface are continuously recorded using an equally deep temperature measuring point. This ensures that the official requirements are met. In addition to the legal authorisation aspect, the focus is of course also on flawless technical operation. Here, for example, close cooperation is maintained with the technical building services planner involved in the project. Together with the project participants, this site near Reppenstedt has taken an important step towards achieving Germany's 2030 climate targets.

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