PADERBORN / LONDON (IT BOLTWISE) – In Germany, data centers are increasingly relying on sustainable concepts to reduce their energy consumption. Two German operators, Vegasystems and Regio IT, show how significant savings can be achieved through the use of green electricity and innovative cooling technologies.
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The increasing demand for data centers in Germany has led to a significant increase in energy consumption. In 2024, these facilities used around 20 billion kilowatt hours of electricity, equivalent to the annual consumption of around 5.7 million two-person households. This development is further fueled by the growing use of artificial intelligence (AI), as AI queries require many times more energy than traditional search queries.
To counteract this trend, some operators are relying on innovative and sustainable concepts. Vegasystems, a company based in Paderborn, operates a climate-neutral data center that achieves a level of self-sufficiency of 85 percent through the use of wind and solar power. The remaining 15 percent of the electricity requirement is covered by purchased green electricity. This strategy allows Vegasystems to significantly reduce energy consumption while minimizing environmental impact.
Another example is Regio IT, which operates all of its facilities with green electricity. The company plans to build a new data center in Aachen, which is scheduled to go into operation at the end of 2025. Even during the construction phase, attention is paid to sustainable materials and low-waste implementation. A green facade should not only help cool the building, but also provide a habitat for birds and insects.
A key factor in the energy consumption of data centers is the cooling of servers, which generate significant waste heat. Regio IT uses outside air for cooling, which further reduces energy consumption. In the future, the company plans to increase the operating temperature of the servers to 27 degrees in order to save even more energy. These measures help improve the PUE (Power Usage Effectiveness) value, which is a measure of the energy efficiency of a data center. While the average in Germany is 1.46, Regio IT is aiming for a value below 1.2 for the new building in Aachen.
The waste heat from the data centers can also be used to heat neighboring buildings. Vegasystems has set up a small local heating network that uses the waste heat to heat a neighboring hall. This innovative use of waste heat shows how data centers can not only reduce their own energy consumption, but also contribute to the energy efficiency of their surroundings.
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