Press release #Thermotechnology

Bosch is supplying hydrogen boiler

Gradual switch to carbon-neutral heat generation in the Fichtel Mountains

  • Wunsiedel Energy Park focuses on green hydrogen
  • Bosch UT-L boiler will generate up to five megawatts of heat carbon-neutrally

Annemarie Wittmann >

Gunzenhausen/Wunsiedel, Germany – Hydrogen has enormous potential for creating a carbon-neutral future. Bosch is now supplying a new “Hydrogen ready” UT-L series boiler for the Wunsiedel Energy Park in the Fichtel Mountains in Germany. With up to 100% hydrogen, the UT-L is ready for future operation and can produce carbon-neutral thermal energy for the new Gelo Timber sawmill. The hydrogen itself is supplied by a Siemens electrolysis plant, one of the largest of its kind in Germany. The plant should become operational by the end of 2021, providing exclusively green hydrogen from renewable energy.

The operating company for the new Bosch boiler, the gas supplier Wunsiedel GmbH, will use natural gas initially, in order to supply the Gelo Timber sawmill with heat. After the electrolysis is commissioned, the service provider can switch flexibly between natural gas firing and hydrogen firing. This means that, if there is a surplus of renewable energy, it is possible to use hydrogen, therefore avoiding the need to shut down the renewable energy plants. As renewable energies are increasingly expanded, more and more hydrogen can be used for heat generation, with the goal of completely dispensing with fossil fuels.

Bosch has already equipped the heating boiler with a dual fuel burner in its production facility, and based its design on operation with hydrogen, which enables a quick fuel change later. When hydrogen is used, water vapour is released as flue gas instead of CO2. The hydrogen combustion procedure is significantly more complex than natural gas firing; aside from technical feasibility, there are also increased safety requirements. Bosch has developed innovations to solve these challenges and has already gained relevant experience. The UT-L heating boiler used will be capable of producing up to five megawatts of heat carbon-neutrally. AGO GmbH Energie + Anlagen has been selected for the integration and installation of the Bosch systems on-site.

The hydrogen project in Wunsiedel is the result of a technology partnership between Siemens AG, Rießner-Gase GmbH and SWW Wunsiedel GmbH. The electrolysis plant is intended to support the transformation of the German energy landscape, and will combine the hydrogen produced with a renewable energy supply. The energy source is made available to the surrounding industrial enterprises, such as Gelo Timber, and is used, for example, in boilers for heat supply. “Heating applications such as this one using green hydrogen are fundamental for the decarbonisation of our energy supply,” confirms Marco Krasser, Managing Director of SWW Wunsiedel GmbH. To this end, Bosch provides sophisticated solutions, both for subsequently retrofitting industrial boilers to run on climate-neutral fuels, and for new systems. An important step in producing process heat and heating energy without generating CO2.

Contact for press inquiries:
Annemarie Wittmann
+49 9831 56-218

Bosch Industriekessel GmbH, part of the Bosch Thermotechnik GmbH, is setting the benchmark for industrial boiler technology over 150 years. Boiler systems for steam, hot water and heating, manufactured to customers' specification, provide efficient heating and process heat for all applications. Boiler house components, which are modular in design and perfectly coordinated, together with intelligent regulation and control technology, significantly simplify the planning, installation and commissioning of the complete system. Comprehensive service support from one source rounds off the innovative product portfolio.

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The Bosch Group is a leading global supplier of technology and services. It employs roughly 421,000 associates worldwide (as of December 31, 2022). The company generated sales of 88.2 billion euros in 2022. Its operations are divided into four business sectors: Mobility, Industrial Technology, Consumer Goods, and Energy and Building Technology. As a leading IoT provider, Bosch offers innovative solutions for smart homes, Industry 4.0, and connected mobility. Bosch is pursuing a vision of mobility that is sustainable, safe, and exciting. It uses its expertise in sensor technology, software, and services, as well as its own IoT cloud, to offer its customers connected, cross-domain solutions from a single source. The Bosch Group’s strategic objective is to facilitate connected living with products and solutions that either contain artificial intelligence (AI) or have been developed or manufactured with its help. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.” The Bosch Group comprises Robert Bosch GmbH and its roughly 470 subsidiary and regional companies in over 60 countries. Including sales and service partners, Bosch’s global manufacturing, engineering, and sales network covers nearly every country in the world. With its more than 400 locations worldwide, the Bosch Group has been carbon neutral since the first quarter of 2020. The basis for the company’s future growth is its innovative strength. At 136 locations across the globe, Bosch employs some 85,500 associates in research and development, of which nearly 44,000 are software engineers.

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