Why companies cool less

ANDEveryone is talking about winter, when heating in offices and homes should be turned down to save gas and money. But costs are rising, and energy consumption in Frankfurt and the Rhine-Meen traditionally increases with summer temperatures. Especially in a city with office towers, data centers and an airport, hot days are the ones with a particularly high consumption of electricity, according to the energy supplier Mainova. Due to the increase in prices for building operators it will be expensive, so on hot days like today it can be a bit warmer.

This applies, for example, to the shopping centers that ECE operates in Frankfurt and the region. In My Zeil, Skyline Plaza or Main-Taunus-Zentrum, both in summer and winter, the temperatures so far have been 22 degrees Celsius, only on particularly hot days could it be warmer inside. “On the one hand, to save energy, and on the other hand, so that visitors are not exposed to large temperature fluctuations,” said an ECE spokesman. Now the temperature drop is getting smaller: “In addition, we are now reducing energy consumption thanks to less cooling than usual.”

In the Chamber of Commerce and Industry, which is located in the historic building of the Frankfurt Stock Exchange, the standard summer temperature is 24 degrees, but only those rooms where someone works or used for events are cooled, emphasizes the spokeswoman. . In addition, the ventilation and cooling systems are currently being refurbished, including central cooling water distribution and modern control technology to optimize consumption.

Wind, efficient technology and less space

Commerzbank’s 259-meter tower shouldn’t be a place to escape sweating in the heat: instead of eternal spring temperatures, the building is always only six degrees colder than it is outside, a spokeswoman said. This moderate cooling is provided by the ceilings through which cold water is pumped, and the windows are left open at night to refresh the offices with the wind.


Deutsche Bank’s competitors focus on wind, efficient technologies and smaller office space. Ten years ago, when the twin towers were renovated, their energy consumption was significantly reduced. Currently, the area that the largest financial institution in Germany has at its disposal for its employees is decreasing. “Due to changing requirements, such as mobile work, we have already adjusted our real estate portfolio in recent months,” says a spokeswoman.

These efforts should not change the general trend that summer is costing more and more electricity: more and more air-conditioning systems have been installed in residential buildings in the last ten years, energy consumption for cooling buildings has increased significantly throughout the country for almost a decade and now stands at 11 terawatt hours. . However, ten times as much energy is used for heating.

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