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Leipzig Will Soon be Able to Heat with Hydrogen Thanks to Siemens Award Winning Turbines

By May 11, 2020 3   min read  (564 words)

May 11, 2020 |

Leipzig will soon be able to heat with hydrogen

Leipziger Stadtwerke has ordered two state-of-the-art turbines from Siemens for their planned thermal power station in Lößnig. These can not only generate electricity and heat from natural gas, but can also run entirely on hydrogen.

The Leipzig municipal utility today signed the contract for the delivery of two SGT800 (Siemens gas turbine 800) gas turbines with Siemens. The gas turbines with a total output of 2×62 MW will be used in the new CHP Leipzig Süd on Bornaische Strasse. The power plant is to supply the city with electricity and heat from the end of 2022.

The investment of around 60 million euros is at the heart of the new Leipzig Süd combined heat and power plant, one of the essential building blocks of the district heating future concept of the Leipzig public utility company.

“The entry from the phase-out of energy generation from fossil fuels is becoming more and more realistic. Even if the plant is initially operated with natural gas – the technology offered by Siemens is designed for 100% green hydrogen and thus the most modern that is currently on the market worldwide there, “says Karsten Rogall, Managing Director of Leipziger Stadtwerke.

The award was carried out using a transparent evaluation matrix. Stadtwerke received support from the planning office Fichtner and the law firm Luther for the Europe-wide tender.

The contract was awarded in stages and now begins with the planning phase until the end of 2020. The delivery and installation of the gas turbines in Leipzig should take place in the first quarter of 2022. It is planned that the new power plant will go into continuous commercial operation in the fourth quarter of 2022.  

In addition to the two gas turbine packages and generators, the delivery ordered includes the entire high-voltage technology, gas compressors including all connecting lines and an innovative black start solution.

The plant has an overall efficiency of over 90%, of which the electrical efficiency of the gas turbines is 41%. Thomas Brandenburg, head of the new generation development staff, responsible engineer for the construction of the power plant, emphasizes: “The turbines have the lowest emission values ​​for such systems. They have the most modern technology for minimizing NOx and CO emissions. This makes the HKW South is still significantly below the emission levels requested in the approval process. ” The application for approval submitted to the State Directorate of Saxony in autumn was independent of the provider, as the tender had not yet been decided at this time.

“With an innovative battery solution, the power plant’s black start capability is guaranteed. In the event of a widespread power failure, the power plant can be started up without generating any further emissions. This is a further increase in security of supply for the city,” says Dr. Maik Piehler, Managing Director of Leipziger Stadtwerke. 

“The new gas turbine power plant sets the course for an innovative and sustainable supply of Leipzig through the use of renewable energy,” said Olaf Kreyenberg, Head of Generation Sales Europe at Siemens Energy. “By gradually converting our gas turbines to the combustion of ever larger proportions of hydrogen, they will soon make it possible to provide district heating and electricity in a particularly environmentally friendly manner. We are very pleased to be a pioneer in the decarbonization of the energy supply by the To use hydrogen and are firmly convinced of this forward-looking and at the same time competitive concept. “

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