The Stadtwerke München (SWM) is planning its seventh geothermal plant on the site of the Michaelibad. Starting from 2029 it is to supply warmth for approximately 75,000 residents of Munich.
Six geothermal plants operate the public utilities Munich (SWM) already in and around Munich. The seventh they want to build from 2024 on the site of the Michaelibad in the southeast of Munich. The project reached a first milestone in the approval process in April 2023. In its preliminary decision, the local building commission approves the construction of the geothermal plant. The justification also referred to the special public interest in climate-neutral conversion of Munich's district heating system, which is to be free of greenhouse gas emissions by 2040.
On the western lawn of the Michaelibad, the geothermal plant is to be built with up to four extraction and four reinjection lines. The location is ideally suited for the geothermal use, because a high heat potential is given in the underground, a connection to the district heating network is well realizable and a high heat demand exists in the environment of the planned plant. This includes not least the bath itself, whose heat supply could be CO2-neutral from 2029. SWM assures that the impact of the plant's construction and operation on local residents and nature will be kept to a minimum. The geothermal plant will consist of two structural parts and will be built in the northwest corner of the outdoor pool area. The exterior design will be determined in the course of further planning. For this also a citizen participation is planned. After end of the construction measures the majority of the lawn will be again usable
Geothermie as way to the climaticneutral warmth
Münchens sixth and at the same time of Germany largest Geothermieanlage at the energy location south in Sendling at the Schäftlarnstrasse runs already in the test enterprise, communicated the SWM at the same time. In the course of the year 2023 the technical and the permission-legal assumption of the Geothermieanlage will take place there. In full operation, it will provide eco-heat for more than 80,000 people.
With a district heating network around 900 kilometers long, SWM supplies around 40 percent of Munich's households with environmentally friendly heat. The aim is for this to be climate-neutral by 2040 at the latest. To achieve this, SWM is relying primarily on deep geothermal energy. Geothermal plants are already connected to the heating network in Riem and Sauerlach. The first geothermal plant in Freiham has been in operation since 2016.
In the south of Munich, SWM is cooperating with neighboring municipalities to tap further geothermal potential and network heat lines. The SWM geothermal plant in Kirchstockach has already been converted into a combined heat and power plant, and the plant in Dürrnhaar will follow. Like the geothermal cogeneration plant in Sauerlach, they are to be connected to the Munich district heating network. In this way, the communities in the southern district could also benefit from SWM's district heating vision.
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