Sustainable Siemens Repair Center Stuttgart

At the Stuttgart Repair Center, around 30 employees maintain and repair industrial electric motors in a hall that was getting on in years. Now it was necessary to find a future-proof solution for the approximately 2,000-square-meter hall that would contribute to Siemens AG's decarbonization strategy. An oil heating system is to be decommissioned and the energy is to be generated as sustainably as possible in the future. The goals are a CO2-neutral site with more efficient energy use and more user comfort. What was needed was a solution that was as well thought-out as it was holistic from a single source: from Siemens. The decarbonisation solution is to be implemented during ongoing operations and at the same time as the renovation of the flat roof.

The basis of any efficient energy management is data transparency and needs-based control of energy systems. The Desigo CC building management system with the Desigo PX automation modules is used for this purpose. To optimise the indoor climate and further increase efficiency, radiant ceiling panels were installed to distribute the heat in the hall. They provide better radiant heat and have a cooling effect in summer. A new lighting concept further increases user comfort. With sophisticated LED lighting, pleasant light is generated where it is needed and energy consumption is reduced at the same time. Thanks to the close cooperation with the Repair Center, the retrofitting ran parallel to the roof renovation without unnecessarily affecting operations.

The holistic concept is paying off for Siemens' repair center in Stuttgart: around 76,000 euros in energy costs are saved year after year. The site will be operated in a CO2-neutral manner. A large part of the electricity requirement is supplied by the company's own photovoltaic system, the rest is purchased as green electricity from sustainable energy sources. With the Desigo CC building management system, the hall is optimally controlled, and the consumption data is transparent. Continuous data monitoring enables efficient system operation and makes the best possible use of the electricity from the photovoltaic system. At the same time, the holistic solution increases comfort for employees: the indoor climate is improved thanks to the radiant ceiling panels, LED lighting brings more light quality and reduces costs. The repair center is thus positioned for the future and fits perfectly into Siemens' decarbonization strategy.