Stadtwerke Munich

from Wikipedia, the free encyclopedia
Stadtwerke München GmbH

legal form GmbH
founding 1998
Seat Munich , Germany
management Florian Bieberbach, Chairman of the Management Board
Number of employees 9,444 (December 2019)
sales 10.7 billion euros (2019)
Branch Energy supplier

The Stadtwerke München GmbH (SWM) is one of the largest municipal utilities and service companies. The owner is the state capital Munich . SWM is active in the areas of electricity, natural gas, district heating, district cooling and drinking water supply, local public transport, operation of the Munich pools and telecommunications. The municipal utility and service company offers electricity and natural gas products to private and business customers across Germany. According to its own information, SWM is the largest European public utility and one of the largest energy suppliers in Germany. The expansion of renewable energies has been a central part of the corporate strategy since 2008.



Under the name "M-Strom", SWM Strom sells various electricity tariffs and accompanying services for private and business customers in Munich and the region. Many offers are also available nationwide. With more than 250,000 green electricity customers, SWM claims to be one of the largest green electricity providers in the private and business customer market in Germany. In the urban area of ​​Munich and the Munich region, SWM is the operator of 14 hydropower plants , several systems that generate electricity from renewable energy , and the three heating plants in the south , north and Freimann , which generate around 70 percent of the electricity with combined heat and power (including Waste and coal incineration in the Munich North thermal power station, also with gas). SWM and its associated companies also have a 25 percent stake in the Isar 2 nuclear power plant .


As part of the European network, SWM supplies its customers with natural gas. A dedicated underground storage facility is also available for this. SWM offers various natural gas tariffs, some of which are available nationwide. In Munich, SWM operates eight natural gas filling stations where renewable biomethane can be refueled.

District heating

When electricity is generated in the cogeneration process, heat is generated which is fed into the district heating network by SWM's cogeneration systems. In its combined heat and power plants and heating plants, SWM generates district heating, which is distributed over 800 km of steam and hot water networks to large buildings and house connections and is used for heating and preparing hot water.

Below the Munich urban area, the temperature of the thermal water in a water-bearing limestone layer is between 80 ° C and 140 ° C. In Sauerlach , water at 140 ° C can be pumped from a depth of 4,200 meters. Sufficient thermal water can be extracted from the Malm limestone at the locations used because these boreholes are either connected to tectonic faults (fissures) or to karstified areas. Since this Malm layer "collapses" from north to south, i.e. is significantly lower in the south of Munich, and the groundwater has correspondingly higher temperatures, combined use for electricity and heat generation (CHP) is possible in the south, but only heat use in the north.

The first geothermal energy system in Munich was put into operation in 2004 in Riem , which supplies Riem and the New Munich Trade Fair with heat around the clock. A duplicate system consisting of two boreholes is used for extraction. Heat is extracted from the deep water , which is pumped at a temperature of 94 ° C, before it is returned via the second borehole, so that no water is extracted from the subsoil.

A second geothermal plant in Sauerlach produces electricity as well as heat. Another system in Freiham is connected to the district heating network in the city center and supplies other areas via a downstream low-temperature network. In April 2018, drilling work began for another geothermal system at the southern heating power station. The drilling work should be completed by the end of 2019. Then the heating center is built. Long-term pumping tests and the fine adjustment of the system then begin. In 2020 the system should then go fully online.

Extensive investments have made it possible to connect to the SWM district heating network in more and more districts of Munich. Since November 2015, further layers of thermal water have been explored under the urban area. It is expected that up to 16 more geothermal systems can be built. By 2040, district heating in Munich is to be generated entirely from renewable energies.

District cooling

Compared to conventional air conditioning systems, district cooling is environmentally friendly and energy efficient - around half of the primary energy consumption can be saved. Cold groundwater serves as the energy source and is used for cooling in a closed circuit. District cooling is made available to industrial customers via a pipe network. Only the pumps are powered by electricity. The slightly heated groundwater is then fed back into the groundwater flow.


80 percent of the drinking water for Munich comes from the Upper Bavarian Mangfall Valley near Weyarn, 20 percent from the Loisach Valley near Garmisch, between Oberau and Farchant. The southern Munich gravel plain serves as a reserve for peaks in demand. The high quality of Munich's drinking water is due to these extraction areas in the Bavarian foothills of the Alps and to ecological agriculture and sustainable forestry in these regions. a. traced back.


In Munich, SWM operates a total of nine indoor pools, a warm winter pool, ten saunas and eight summer pools, in accordance with the “Munich pool concept” adopted by the Munich city council in 1991, which envisaged upgrading the pools to recreational and leisure pools. In Munich there are two combination pools (combination of indoor and outdoor pool): the Westbad on Weinbergerstraße in the west and the Michaelibad on Heinrich-Wieland-Straße in the east. The Michaelibad is Munich's largest recreational and leisure pool.

Energy advice

Another component of SWM's energy strategy is energy efficiency. For this reason, SWM provides comprehensive advice on saving energy. In order to increase the potential for energy savings, SWM have further expanded their advisory services. The offer also includes the energy saving advice project for households with low incomes.

Headquarters at Emmy-Noether-Strasse 2

Project on renewable energies

In 2008, SWM began the renewable energies expansion campaign: From 2025, the company intends to produce as much green electricity in its own plants as the whole of Munich consumes. That is around 7.5 billion kilowatt hours per year. The renewable energies expansion campaign has a budget of around nine billion euros, which is invested in particular in wind power plants in Northern Europe. SWM is currently involved in the offshore wind farms Global Tech I , Gwynt y Môr , DanTysk and Sandbank . Further projects are being planned, with projects planned by SWM for the installation of wind turbines on the Norwegian mainland encountering considerable resistance from Norwegian environmentalists. Stadtwerke München is also striving for the energy transition in the heating sector, with the aim of converting the city's heating supply to 100% renewables, primarily geothermal energy, by 2040 [3]. Munich would be the first metropolis in the world to have a completely renewable heat supply.

Local public transport

The Munich public transport company mbH (MVG), a subsidiary of WSC, provides with subway , bus , tram , MVG wheel and other mobility services offer an environmentally friendly in Munich transport available.


Together with its subsidiary M-net Telekommunikations GmbH, SWM is laying a fiber optic network in Munich. In addition, M-net is investing in other regions of Bavaria in the expansion of fiber-optic broadband networks. The communication solutions are already available in over 50 percent of Bavarian households and in the greater Ulm area for private and business customers.

Group structure

Stadtwerke München has been a GmbH since 1998, i. H. organized in a private company form that is 100 percent owned by the state capital of Munich. As a municipal company, SWM fulfills its mission to provide services of general interest. SWM's headquarters are in the north of Munich at Emmy-Noether-Strasse 2. SWM has expanded its core business areas through investments.


Energy and drinking water:

  • SWM supply GmbH
  • SWM Infrastructure GmbH & Co. KG
  • SWM Infrastructure Region GmbH
  • SWM Gasbeteiligungs GmbH & Co. KG
  • SWM Services GmbH
  • SWM Bayernwind
  • LHM Services GmbH
  • Aqua Komm GmbH & Co KG
  • Marquesado Solar SL (operator of the Spanish solar thermal power plant Andasol 3)
  • Bayerngas GmbH, Munich
  • Energie Südbayern GmbH (ESB), Munich
  • Gas supply Germering GmbH
  • Gas supply Unterschleißheim GmbH & Co. KG
  • Gas supply Haar GmbH (GVH)
  • Gas supply Ismaning GmbH (GVI)
  • Community nuclear power plant Isar 2 GmbH (KKI2)
  • HKW Nord Beteiligungsgesellschaft mbH Munich
  • Kom-Strom AG, Leipzig
  • KEA Bayern GmbH & Co. KG (Municipal Energy Alliance Bavaria)
  • Praterkraftwerk GmbH
  • Solar roof München-Riem GmbH, Munich
  • Economic Association of German Supply Companies AG (WV Energie AG), Frankfurt am Main


Information technology:


  • SWM customer service GmbH, Munich
  • MGIS Society for Consulting and Innovative Software mbH
  • P + R GmbH, Munich
  • Portal Munich Betriebs-GmbH & Co. KG

Company data

Employee 9,444
Sales 2019 around 10.7 billion euros
power grid around 12,000 km
District heating network around 800 km
Natural gas network around 6,000 km
water network around 3,200 km
Transport network around 636 km

Data as of April 28, 2020

Corporate management

Florian Bieberbach is the chairman of the management board. Further managing directors are Werner Albrecht (Human Resources and Social Affairs), Ingo Wortmann (Mobility) and Helge-Uve Braun (Technology). The chairman of the supervisory board is Dieter Reiter, Lord Mayor of the state capital Munich.

Generation plants in Munich and the region

In Munich and the surrounding area, SWM generates energy in around 50 plants.

Thermal power stations

  • Westbad combined heat and power plant, in operation since 1997
  • Freimann thermal power station , in operation since 1974
  • Heating plant north , in operation since 1964
  • South heating power station , in operation since 1899 for electricity generation, since 1969 additionally for district heating
  • Gaisbergstrasse heating plant, in operation since 1974
  • Kathi-Kobus-Strasse heating plant, in operation since 1965
  • Koppstrasse heating plant, in operation since 1967
  • Perlach heating plant, in operation since 1980
  • Theresienstraße heating plant, in operation since 1963

Hydropower plants

  • Isarwerk 1: The run-of-river power station on the Isar canal in Munich has been in operation since 1908. The facility has been a listed building since 1993.
  • Isarwerk 2: The run-of-river power station on the Isar canal in Munich has been in operation since 1923.
  • Isarwerk 3: The run-of-river power plant on the Isar canal in Munich has been in operation since 1923.
  • Leitzachwerk 1: The power plant in Mangfalltal in the Rosenheim district has been in operation since 1983.
  • Leitzachwerk 2: The power plant in Mangfalltal in the Rosenheim district has been in operation since 1965.
  • Leitzachwerk 3: The power plant in the Mangfall Valley in the Rosenheim district has been in operation since 1983.
  • Maxwerk : The run-of-river power plant on the Auer Mühlbach in Munich is SWM's oldest hydropower plant. It was built in 1895.
  • Prater power plant: The plant is invisible in the river bed of the Munich Isar at the level of the Prater Island. The plant has been in operation since 2010. It is one of the most modern small hydropower plants in Europe.
  • Stadtbachstufe : The small hydropower plant has been in operation since 2006.
  • Uppenbornwerk 1 : The plant near Moosburg on the Middle Isar Canal has been in operation since 1930.
  • Uppenbornwerk 2 : The plant near Moosburg on the Middle Isar Canal has been in operation since 1951.
  • Small hydropower plant on the Sempt: The plant in Wang has been in operation since 2011.
  • Small hydropower plant Hammer: The plant near Fischbachau has been in operation since 1976.

Photovoltaic systems

In the city and in Moosburg, SWM currently operates 24 PV systems. 16 of the systems were actively financed from the revenues of the SWM electricity tariff green electricity. With M-Ökostrom aktiv, customers pay a surcharge compared to the conventional SWM electricity tariff M-Ökostrom. SWM uses the income from the surcharge to build renewable energy systems in the Munich region.

Others: geothermal, wind, biogas, nuclear energy

  • Michaelibad biogas combined heat and power plant, in operation since 2013
  • Geothermal energy plant Riem: The plant has been in operation since 2004 and supplies the trade fair town of Riem with heat.
  • Sauerlach geothermal power plant: The plant has been in operation since 2014 and generates heat and electricity.
  • Freiham geothermal system: The system has been in operation since autumn 2016 and covers the base load of the heating requirements of the new Freiham district and neighboring areas in the west of Munich.
  • Fröttmaning wind power plant , in operation since 1999
  • Community nuclear power plant Isar 2 , in operation since 1988 (25% stake)


Art in architecture project at the headquarters

SWM Education Foundation

In November 2007, the SWM founded the SWM Education Foundation. It promotes measures and projects in preschool and school fields as well as in initial vocational training. On the occasion of its five-year existence in 2013, the SWM Education Foundation introduced two new funding priorities: its own scholarship program and a sponsorship award. The scholarship program was aimed at students of engineering, natural sciences, economics and computer science from Munich and the region and will no longer be continued (as of August 2020). The advancement award, endowed with 10,000 euros, has been awarded every year since 2013 for special commitment in the field of education for disadvantaged children, young people and young adults.

Public utility project

Socially disadvantaged and / or individually handicapped young people are supported by SWM with the public utility project training offensive. For 30 years, the municipal utility project with the city youth welfare office has usually offered five young people a year commercial and technical training at SWM - in connection with job-related support and socio-educational support. The young people not only receive a completed training, but also support to be able to lead their lives independently.

Sports funding

The SWM support the swimming start community Stadtwerke München (SG SWM) and the athletics community Stadtwerke München (LG SWM). The SG SWM is an amalgamation of the Isarnixen women's swimming club Munich, men's swimming club Munich, free water sports club Munich and swimming club Munich 1899. The training and starting community is successful in swimming, synchronized swimming, water polo and jumping. The aim is to promote competitive sport in the four categories and to participate in national and international competitions.

See also


Web links

Commons : Stadtwerke München  - Collection of images, videos and audio files

Individual evidence

  1. Press release: Dr. Kurt Mühlhäuser will leave his position as managing director on December 31, 2012. (PDF; 41 kB) Stadtwerke München GmbH, archived from the original on May 25, 2013 ; Retrieved January 2, 2013 .
  2. a b c d e Annual Report 2019 (PDF; 2.3 MB) Stadtwerke München GmbH, accessed on April 29, 2020 .
  3. Stefan Dorner: tz visits the municipal utility's mega wind project. In: TZ. August 19, 2014, accessed February 2, 2015 .
  4. Timm Krägenow: Oberbayerisches Risk Management in Oslo. In: Energy & Management. November 5, 2014, archived from the original on February 2, 2015 ; accessed on December 23, 2018 (original website no longer available).
  5. a b Martin Jendrischik: Renewable district heating: 16 geothermal projects for Munich. Cleanthinking, accessed February 2, 2015 .
  6. ^ D. Koenemann: Geothermal energy in Munich. In: Elektropraktiker, edition 2/2016. Verlag HUSS Medien, Berlin 2016, ISSN 0013-5569.
  7. ^ Toni Rütti: Germany: The Bavarian metropolis (also) relies on geothermal energy. ee-news, October 27, 2014, accessed on February 2, 2015 .
  8. Michael Tibudd: River-cooled offices. In: Süddeutsche Zeitung. August 9, 2012, accessed February 2, 2015 .
  9. Nadia Pantel: Why people in Munich drink the cleanest water. In: Süddeutsche Zeitung. April 14, 2014, accessed February 2, 2015 .
  10. Christian Pfaffinger: How to save electricity in Munich: The tips and tricks. In: Munich evening newspaper. January 3, 2014, accessed February 2, 2015 .
  11. a b c d Katja Riedel: Electricity for the south with wind from the north. In: Süddeutsche Zeitung. August 12, 2014, accessed January 29, 2015 .
  12. Anmar Frangoul: Munich: The 100% clean electricity city? . In: CNBC . September 26, 2014, accessed January 29, 2015 .
  13. All wind turbines of the “DanTysk” wind farm installed off Sylt. In: world. August 28, 2014, accessed February 2, 2015 .
  14. Wind power in Norway: Mr. Vågenes fight against windmills report of the daily newspaper Handelsblatt from September 7, 2019, accessed on September 10, 2019
  15. The heating transition in large cities: Ambitious Munich | Information portal deep geothermal energy. Retrieved July 4, 2018 .
  16. 335 million for local transport. In: TZ Munich. January 20, 2014, accessed February 4, 2015 .
  17. World premiere in Munich: Avenio trains come on the rails. Bayerischer Rundfunk, September 18, 2014, archived from the original on February 4, 2015 ; Retrieved February 4, 2015 .
  18. Kolja Kröger: Munich is expanding the data highway. In: Mercury. December 30, 2010, accessed February 4, 2015 .
  19. Is there a fast internet connection? In: Munich evening newspaper. November 25, 2014, accessed February 4, 2015 .
  20. Ernst Lauterbach: Stadtwerke rely on the fiber optic network - cooperation between Stadtwerke and M-net. In: Main Post. April 18, 2016, accessed February 4, 2015 .
  21. ^ Stadtwerke München GmbH: SWM generation plants. (PDF 4.19 MB) Archived from the original on June 3, 2014 ; Retrieved January 29, 2015 (original website no longer available).
  22. E-Zert-News , on, accessed on April 4, 2019
  23. ^ Education foundation - social projects of the SWM. Retrieved August 24, 2020 .
  24. SWM donates 50,000 euros for the “Keks” educational project. In: Munich evening newspaper. March 13, 2014, accessed February 2, 2015 .
  25. The public utility project offers ... public utility project, archived from the original on January 3, 2014 ; accessed on October 23, 2018 (original website no longer available).

Coordinates: 48 ° 10 ′ 19.1 ″  N , 11 ° 31 ′ 56.1 ″  E