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Joint power plant Hanau relies on ENGIE Deutschland

05 October 2022
  • ENGIE Deutschland has been awarded the contract for the construction of the Hanau joint power plant by Mainova and Stadtwerke Hanau.
  • As general contractor, the specialist for technology, energy and service is responsible for the construction of the planned combined heat and power plant with a total net electrical output of 30 megawatts and a total thermal output of 30 megawatts

Cologne/Hanau - ENGIE Deutschland has been awarded the contract as general contractor (GC) for the construction of the Hanau joint power plant (GKH) of Mainova and Stadtwerke Hanau in an EU-wide tender. As a leading specialist in technology, energy and service, ENGIE is thus responsible for the turnkey construction of the gas engine power plant, which is to be ready to supply the city of Hanau with district heating from July 2024. Construction is scheduled to start in January 2023. The planned plant is a highly efficient combined heat and power (CHP) unit that will replace the current heat supply from the Staudinger coal-fired power plant. "We are pleased to contribute to establishing a future concept for supplying the city of Hanau with green district heating today. In this way, we are fulfilling our ENGIE-wide mission to accompany our customers on the path to climate neutrality," says Bernd Winkelmann, Regional Manager Region East at ENGIE Germany.


Hanau joint power plant becomes H2-ready

"In addition to the forward-looking alignment for future operation with hydrogen, the use of waste heat from the data center being built in the immediate vicinity is also conceivable," emphasizes GKH Managing Director Winand Zeggel. "With the highly efficient combined heat and power plant, a sustainable solution has been found for the city of Hanau," adds GKH Managing Director Matthias Fernitz.

The GKH generates heat and electricity by means of highly efficient cogeneration. It consists of three gas engines with a total thermal and electrical output of 30 megawatts each, two gas-fired hot water boilers with eight megawatts each, two pressurized heat storage tanks and three district heating pumps.

For the implementation, the ENGIE experts contribute their comprehensive technical know-how and their many years of expertise from comparable projects - first and foremost the experience with the construction of the CHP in Gera and the realization of the lighthouse project for environmentally friendly and low-emission electricity and heat supply GAMOR in Saarbrücken.



Strong partners for future-oriented power and heat supply in Hanau: Winand Zeggel (GKH Managing Director and Division Manager Heat and Power Generation, Mainova), Matthias Fernitz, GKH Managing Director and Division Manager Decentralized Energy, Stadtwerke Hanau), Bernd Winkelmann (Regional Manager East Region and Branch Manager Dresden, ENGIE Deutschland) and Carsten Krause (Commercial Regional Manager East, ENGIE Deutschland) at the signing of the contract (from left).

© Mainova AG

About Mainova AG

Mainova AG is the leading energy service provider in Frankfurt am Main and energy partner for private and corporate customers throughout Germany. The company supplies more than one million people with electricity, gas, heat and water and generated adjusted sales of almost €2.9 billion in 2021 with its approximately 3,000 employees. Mainova generates its own energy on a large scale and, in addition to classic supply infrastructures, also offers products and services relating to renewable energies, electromobility, car-sharing, energy efficiency and digital infrastructures. Mainova subsidiary NRM Netzdienste Rhein-Main GmbH ensures reliable supplies in Frankfurt and the Rhine-Main region with its energy and water network covering more than 14,000 kilometers. SRM Straßenbeleuchtung Rhein-Main GmbH provides lighting in public areas with more than 70,000 street lights as well as innovative services. Mainova Servicedienste GmbH provides multiple excellent services for customers. The largest shareholders of Mainova AG are Stadtwerke Frankfurt am Main Holding (75.2 percent) and Munich-based Thüga (24.5 percent). The remaining shares (0.3 percent) are in free float.

More about Mainova


About Stadtwerke Hanau

Stadtwerke Hanau GmbH is the local energy services company of the city of Hanau. In its home market, the company is the leading utility supplying electricity, natural gas, heat and drinking water. The company's tradition dates back to the beginnings of gas supply in 1848. Since 1978, all municipal utilities have been merged and transformed into the current Stadtwerke Hanau GmbH. Today, the company no longer just supplies energy and water. It is increasingly developing energy-related services for its private and commercial customers, the real estate industry and the city of Hanau.

More about Stadtwerke Hanau

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Alexa Schröder
Head of Corporate Communications
ENGIE Deutschland GmbH