As the years progress, the need for energy naturally increases. For this reason, human beings are looking for solutions in different ways. According to a new study Berlin underground car parks, Thanks to the heat it produces, it has served thousands of homes. clean geothermal electricity can provide. So how is this possible?
How can Berlin underground car parks generate energy?
The heat given off by car engines makes city parking lots hotter than the surrounding soil, which increases the temperature of groundwater. This can pose a threat to water quality, but it also presents an opportunity; using heat pumps to release energy and heat homes.
on this occasion more than 5,000 According to modeling from large underground car parks, enough energy is transferred to groundwater to provide heat for 14,660 homes in Berlin alone. Maximilian Noethen, geoscientist from Martin Luther University Halle-Wittenberg, “This would have the advantage of extracting energy from groundwater, thereby cooling it and improving its quality,” he explains.
To reach their conclusion, the researchers looked not only at Berlin but also at 31 underground car parks in various cities in Germany, Austria and Switzerland. Their research has consistently shown that these parking lots warm groundwater year-round. Traffic volume in underground parking lots, proximity to groundwater, and ambient groundwater temperatures were the biggest factors affecting the amount of heat produced.
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Groundwater temperatures in European cities have been rising for decades as a result of global warming, and this can affect the quality of groundwater, from which much of drinking water is drawn. From MLU Institute of Earth Sciences and Geography Professor Peter Bayer “This development needs to be controlled with various measures,” he warns.
Although the heat coming from groundwater alone is not enough to meet the heating needs of a city like Berlin, researchers believe that the potential of geothermal energy goes far beyond this and can make a significant contribution to providing sustainable heat.