Mainz municipal utilities
| Mainzer Stadtwerke AG | |
|---|---|
| legal form | AG |
| founding | 1933, AG since 1971 |
| Seat | Mainz , Germany |
| management | Daniel Gahr (CEO) Tobias Brosze (Deputy CEO) |
| Number of employees | 1572 (2017) |
| sales | € 449 million (2017) |
| Branch | Public utilities |
| Website | www.mainzer-stadtwerke.de |
The Mainz Stadtwerke AG (MSW) is a municipal enterprise of the city of Mainz , and provides services and products in the core areas of electricity, gas and water supply and water production and public transport for the city of Mainz and surrounding communities.
Mainz mobility
MSW is involved in around 50 individual companies and outsourced companies. For example, Mainzer Verkehrsgesellschaft (MVG) is a wholly-owned subsidiary. MVG operates local public transport with buses and trams as well as the bicycle rental system MVGmeinRad in Mainz and some neighboring areas under the brand name “Mainz Mobility”.
Pool operation
At the beginning of 2018, the Stadtwerke Group took over the Taubertsbergbad above Mainz main station. Mainzer Stadtbad GmbH - also a wholly owned subsidiary of MSW - is responsible for operation.
telecommunications
The MSW subsidiary Mainzer Broadband GmbH offers its customers Internet and telecommunications services in the gigabit range.
power supply
Since October 2016, Mainzer Stadtwerke Vertrieb und Service GmbH has been offering electricity and gas products again under the “Mainzer Energie” brand in Mainz and the surrounding area. There are joint holdings with the neighboring city of Wiesbaden , for example in the power plants Mainz-Wiesbaden AG, in which the Mainzer Stadtwerke AG and the ESWE supply AG each hold 50% of the shares. In addition, Mainzer Stadtwerke AG is involved in infrastructure development, for example in developing the Mainz customs port and the Heiligkreuzviertel in Mainz into large residential and business districts.
District heating in Mainz
Mainzer Fernwärme GmbH (MFW) has been responsible for the distribution and sale of heat in Mainz since it was founded in 1960 , which is primarily produced in an environmentally friendly manner by means of combined heat and power in gas-fired power plants and a waste-to-energy plant . Mainzer Fernwärme GmbH was called Heizkraftwerk GmbH Mainz (HKW) until it was renamed at the end of 2016. Mainzer Stadtwerke AG holds two thirds of the shares, Kraftwerke Mainz-Wiesbaden AG the other third, which also takes on operational management.
distribution
The MFW operates a heating network of 95 km length, to which around 1000 larger buildings and distributors are connected, as well as a smaller local heating network on the other side of the Rhine in Mainz-Kastel . District heating sales amounted to around 400 GWh in 2018, with a thermal connected load of 243 MW. The grid feed-in amounted to 454 GWh, so the grid losses were around 12%. Mainz district heating currently draws around 2500 customers, mostly larger consumers such as state authorities, the university, the university clinics, the cathedral or the Mainz town hall. The underfloor heating in the OPEL arena of 1. FSV Mainz 05 is also operated with district heating. The total heat output corresponds to a good 50,000 modern single-family houses. Mainz district heating is an important component in the city's “Masterplan 100 percent climate protection Mainz”. The new development projects will focus on the newly designed customs and inland port and the Holy Cross area. As of April 2017, a primary energy factor for the heat supply of 0.32 and a specific CO 2 emission factor of 92 g / kWh were certified.
generation
The base heat load is supplied by the Mainz waste-to-energy plant operated by the Entsorgungsgesellschaft Mainz mbH (EGM) on the Ingelheimer Aue in Mainz. The generation of district heating at medium load is done by the gas and steam power plant (electrical output 400 MW) and the CHP (10 * 10 MW engines) of Kraftwerke Mainz-Wiesbaden AG (KMW). A district heating storage system (750 MWh) is used to make the electrical power plant output more flexible, regardless of the heat load. For peak and reserve loads, MFW operates three heating plants of its own (Bauerngasse, Universität and Mainz-Kastel: a total of 165 MW) in the urban area, which provide 9% of the heat, the remaining 91% come from the CHP plants on Ingelheimer Aue based. In addition, the company has been using an electric boiler ( power-to-heat ) with 20 MW in the balancing energy market since May 2013 .
Participations (selection)
- Mainzer Netze GmbH (100% participation)
- Mainzer Stadtwerke Vertrieb und Service GmbH (100% participation)
- Mainzer Verkehrsgesellschaft mbH (MVG) (100% participation)
- Mainzer Stadtbad GmbH (100% participation)
- Mainz Broadband GmbH (100% stake)
- Überlandwerk Groß-Gerau GmbH (ÜWG) (95% stake)
- Mainzer Fernwärme GmbH (MFW) (2/3 participation)
- Kraftwerke Mainz-Wiesbaden AG (KMW) (50%)
- Mainz energy park
Web links
Individual evidence
- ↑ a b Stadtwerke Mainz, data
- ↑ Commercial Register HRB 293 Changes 2016-12-02
- ↑ Key data Mainzer Fernwärme GmbH 2018
- ↑ a b Mainzer Fernwärme GmbH, Mainz: Annual financial statements as of December 31, 2018 and management report, Federal Gazette , 2019-06-07
- ↑ Mainzer Fernwärme GmbH in the KMW Group
- ^ Annerose Hört, Julia Brandt, Andrea Graf, Johannes Trunzer, Ilka Erfurt, Johannes Gansler, Matthias Reichmuth, Anne Scheuermann, Christoph Voigtländer: “Master plan 100% climate protection” for the state capital Mainz. State capital Mainz / Green and Environment Agency, August 2, 2017, p. 65 , accessed on September 27, 2019 .
- ↑ Monika Bell: Certificate of the energetic evaluation of district heating according to FW 309-1, 2014-05 for the central district heating network Mainz of Mainz Fernwärme GmbH. EEB Enerko, April 21, 2017, accessed on September 27, 2019 .
- ↑ Olaf Thun: 100 MW flexible CHP generation from the Mainz-Wiesbaden power plants , 2017-12-06
- ↑ New storage facility secures district heating supply. In: press forum. Mainzer Stadtwerke, October 4, 2012, accessed on September 27, 2019 .
Coordinates: 50 ° 0 ′ 37.8 ″ N , 8 ° 15 ′ 50.1 ″ E