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Fraunhofer IEG to Heat and Cool Lohrheide Stadium in Germany Using Geothermal

 "Harnessing Geothermal Energy: A Game-Changer for Sustainable Stadium Renovation"

By : Robert Buluma

As cities around the world strive for more sustainable and environmentally friendly solutions, the recent drilling initiation for geothermal systems at the Lohrheide Stadium in Bochum marks a significant step towards this goal. The city's decision to incorporate near-surface geothermal energy into the renovation and modernization of the stadium demonstrates a forward-thinking approach to energy usage and sustainability.


The project, spearheaded by the city of Bochum in collaboration with Fraunhofer IEG, entails the installation of a geothermal probe field with 38 geothermal probes and two heat pumps. This innovative system is designed to harness geothermal heat from the ground during winter months for heating the stadium, while in summer, the excess heat is returned to the ground for cooling purposes. This cyclic process not only ensures efficient energy utilization but also minimizes the stadium's carbon footprint.


One of the key features of this geothermal system is its integration with renewable energy sources. The installation of a 40 kWp photovoltaic roof system atop the stadium's stands further enhances its sustainability by providing a portion of the electricity required to operate the heat pumps. This holistic approach to energy management showcases the potential of combining geothermal energy with other renewable sources to achieve maximum efficiency and environmental benefits.


The anticipated energy output of the geothermal system aligns with the stadium's energy requirements, with heating and cooling demands estimated at 280 MWh/year and 180 MWh/year, respectively. Moreover, aiming for an annual performance factor of 4 underscores the system's exceptional efficiency, as it is expected to generate four kilowatt hours of heat from the environment for every kilowatt hour of electricity consumed. This efficiency not only reduces operating costs but also significantly improves the stadium's overall CO2 balance compared to conventional energy sources.


Beyond its immediate impact on the Lohrheide Stadium, the successful implementation of this geothermal system serves as a model for sustainable infrastructure development in sports facilities and beyond. As the world continues to grapple with the challenges of climate change and energy transition, initiatives like these demonstrate the feasibility and benefits of embracing renewable energy solutions.

To read more on other uses of Geothermal in UK read here British Museum Powered by Geothermal

In conclusion, the drilling commencement for the geothermal systems at the Lohrheide Stadium represents a noteworthy milestone in the journey towards sustainable urban development. By harnessing the Earth's natural resources, cities like Bochum are not only reducing their environmental impact but also paving the way for a greener and more resilient future. 

Source : Alphaxioms

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