Steinmüller Babcock modernises Waste to Energy plant Ludwigshafen


Steinmüller Babcock Environment GmbH based in Gummersbach has been awarded the contract for the modernisation of the Joint Venture Waste to Energy plant Ludwigshafen. The scope of supply and services includes planning and construction of the boiler system including grate and ancillary equipment for two lines. The client is the municipal operator GML – Gemeinschafts-Müllheizkraftwerk Ludwigshafen GmbH. Commissioning of the second line is planned for summer 2024.

With the project IGNIS (Latin: fire), the GML in Ludwigshafen is planning a comprehensive revamping of the Waste to Energy plant in order to ensure the waste disposal of the region for the next 25 years. In the plant, municipal and commercial waste from around 1,000,000 people from the region are thermally recycled. The Joint Venture Waste to Energy plant Ludwigshafen was built over 50 years ago, the two oldest of the three boilers are now 30 and 23 years old. A full revamping of the three lines would not be economically viable, and so GML consequently decided to invest in two new Waste to Energy lines replacing two of the existing lines which will be dismantled. Thus, the two new lines can be set into operation without restricting the operation of the existing three lines too much. On average, 90% of capacity will be maintained over the five years of reconstruction.

Depending on the operation status of the boilers the two new lines will contribute 90,000 – 100,000 t/a per year each to the overall plant treatment capacity of 235.000 t/a, with a thermal boiler performance of 30 MW each. The boilers generate high-pressure steam, which is converted into district heating and electricity in the neighbouring district heating plant of the regional supplier TWL AG. Steinmüller Babcock convinced in the tender with a technical concept combining a tailor-made solution with an overall attractive economic offer. Further information about Steinmüller Babcock can be found at

Dr. Thomas Grommes, managing director of GML, and Thomas Feilenreiter, managing director of Steinmüller Babcock Environment GmbH, started the active part of the revamping project on 9th July with the official signing of the contract. © Foto: GML – Gemeinschafts-Müllheizkraftwerk Ludwigshafen GmbH.


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