Kraftwerke Mainz-Wiesbaden AG

Kraftwerke Mainz-Wiesbaden AG (KMW) is a German municipal energy producer based in Mainz that has supplied electricity, steam and district heating to the Mainz-Wiesbaden metropolitan region since 1931. The company describes itself as a kommunaler, regional fest verwurzelter Erzeuger von Strom, Dampf und Fernwärme — a municipally anchored generator of power, steam and district heat — and states that its plants rank among the high-performance generating facilities by international comparison thanks to high availability and efficient conversion. KMW employs close to 500 people and presents itself as modern, social and responsible, combining regional tradition with continuous technological development. KMW's generation portfolio spans conventional and increasingly renewable assets. Its plant list includes gas and steam turbine power plants, a combined-cycle plant, a waste-to-energy plant (Müllheizkraftwerk), combined heat and power units (Blockheizkraftwerk), district heating and heat storage, wind farms, solar parks, a wind-to-gas park, an natural gas grid, and a consortium for energy supply to Opel. The company has also announced future projects such as a data centre, a large-scale heat pump, a motor power plant campus and battery storage. In 2020 KMW took over Wind to Gas Energy GmbH & Co. KG, expanding into hydrogen production and battery storage while enlarging its wind power portfolio; in the same year a new gas engine power plant went into operation, adding fast-starting flexibility to react to energy market developments. As a municipal utility, KMW is closely tied to its region and its public shareholders. Its history reaches back more than 120 years, and the company frames itself as a long-standing member of the Mainz-Wiesbaden community. Recent news on its website highlights its role in regional engagement ("Wiesbaden engagiert!"), the approval path for a highly modern motor power plant on the Ingelheimer Aue, a nomination for the Metropolregion award with "Green Rocks", and a strategic vision of transforming its power plant site into an integrated energy hub. The company's stated philosophy emphasises environmental responsibility, people and progress, and it invests in renewable energies to meet future ecological challenges. KMW remains a privately held, municipally oriented company rather than a listed corporation. Its brand identity is built on reliability, regional service and the energy transition: it presents itself as a municipal service provider meeting the challenges of energy supply and transformation with high plant efficiency and a stronger commitment to renewables. For customers and citizens in the Mainz-Wiesbaden area, KMW is the local provider of electricity and district heating, and increasingly a partner in hydrogen, storage and sector-coupling projects.

KMW's history reaches back more than 120 years, with the company stating that it has continuously developed technically since the end of the 19th century while preserving a collegial, social working culture. The modern Kraftwerke Mainz-Wiesbaden AG dates its role as a reliable supplier of energy to the Mainz-Wiesbaden metropolitan region to 1931, and it has operated as a municipal, regionally rooted producer of electricity, steam and district heating since then. Over the decades KMW built and modernised a diversified generation fleet. Its plant portfolio came to include gas and steam turbine power plants, combined-cycle plants, a waste-to-energy plant, combined heat and power units, district heating and heat storage, wind farms, solar parks and a wind-to-gas park, alongside a natural gas grid and a consortium for energy supply to Opel. The company emphasises high availability and efficient conversion, positioning its plants among high-performance generating facilities in international comparison. A significant recent chapter has been the energy transition. In 2012 KMW made an investment described as an investment in the future. In 2014 it further increased the efficiency of its gas and steam power plant, modernising the facility for around EUR 60 million to prepare it for the requirements of the coming years. In 2015 the first own KMW wind turbine went into operation near Biedesheim in Rhineland-Palatinate. In 2020 the company took over Wind to Gas Energy GmbH & Co. KG, opening further business fields in hydrogen production and battery storage while expanding its wind power portfolio; in the same year a new gas engine power plant (a combined heat and power unit) went into operation, adding fast-starting flexibility to react to energy market developments on a minute-by-minute basis. More recently KMW has pursued a site strategy that envisions transforming its power plant location into an integrated energy hub. It has announced future plans including a data centre, a large-scale heat pump, a motor power plant campus and battery storage. In the news, the company reported that a highly modern motor power plant on the Ingelheimer Aue can be built, that its Green Rocks project was nominated for the Preis der Metropolregion, and that it is active in the regional initiative "Wiesbaden engagiert!". Throughout, KMW presents itself as modern, social and responsible, with close to 500 employees working in a social and future-oriented environment.

• 2020

  KMW takes over Wind to Gas Energy GmbH & Co. KG, expanding into hydrogen production and battery storage and enlarging its wind power portfolio.

• 2020

  A new gas engine power plant (combined heat and power unit) goes into operation, adding fast-starting flexibility.

• 2015

  The first own KMW wind turbine goes into operation near Biedesheim, Rhineland-Palatinate.

• 2014

  KMW modernises its gas and steam power plant for around EUR 60 million to increase efficiency.

• 2012

  KMW makes an investment described as an investment in the future.

• 1931

  KMW begins reliably supplying the Mainz-Wiesbaden metropolitan region with energy.

Municipal, regionally rooted energy producer combining reliable conventional generation with renewable energy and sector-coupling projects for the Mainz-Wiesbaden area.

• Gas- & Dampfturbinenkraftwerk

  Gas and steam turbine power plant; modernised in 2014 for around EUR 60 million.

• Kombikraftwerk

  Combined-cycle power plant.

• Müllheizkraftwerk

  Waste-to-energy plant.

• Blockheizkraftwerk

  Combined heat and power unit; a new gas engine plant went into operation in 2020.

• Fernwärme & Wärmespeicher

  District heating and heat storage services.

• Windparks

  Wind farms; first own turbine went into operation in 2015 near Biedesheim.

• Solarparks

  Solar parks.

• Wind-to-Gas-Park

  Wind-to-gas park; related to the 2020 takeover of Wind to Gas Energy GmbH & Co. KG.

• Erdgasnetz

  Natural gas grid.

1. 1KMW: Energie für den Großraum Mainz-Wiesbadenkmw-ag.de
2. 2Über 120 Jahre : Das ist unsere Geschichtekmw-ag.de
3. 3Mehr über uns: Geschichte & Organisation von KMWkmw-ag.de
4. 4Kraftwerke Mainz-Wiesbaden AGwikidata.org