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AI controls cooling at Croatian Telekom data center

10 февруари 2026 г.
Hungary

Optimization means six-figure savings.

Data centers account for more than 3 percent of the world's total electricity consumption, and this figure is expected to rise to 13 percent by 2030. A significant portion of this energy is used for cooling, so optimizing this can result in considerable energy savings.


More efficient operation, less maintenance

This is the path chosen by Hrvatski Telekom (HT), Croatia's leading telecommunications company, which has introduced Siemens technology for cooling its data center. Thanks to an intelligent sensor system and AI-supported cooling management, the telecom provider's largest data center in Zagreb now operates in a more climate-friendly manner, resulting in six-figure euro savings for the company.

The new system uses a number of devices, including wireless sensor and control modules, to continuously monitor the temperature of server cabinets and any changes therein. It analyzes this real-time data using artificial intelligence and automatically controls the fans responsible for cooling, dynamically adjusting to current needs.

Through continuous optimization and machine learning, up to 99 percent of hotspots in data centers can be permanently eliminated. The solution has not only reduced the operating time of cooling equipment, but also lowered maintenance costs: a significant portion of heat-related failures and unplanned downtime can now be avoided by identifying malfunctioning components and supporting predictive maintenance.


Bring on the "factory-smart" data centers

The same White Space Cooling Optimization technology is used in the 14,500-square-meter Greenergy Data Centers near Tallinn, which opened a few years ago and is considered the largest and most energy-efficient facility of its kind in the Baltics.

This data and AI-driven operation is also the basis for the modular, plug-and-play data center, which is a fully prefabricated, configurable system. It comes with integrated, intelligent, and environmentally friendly energy management, as indicated by Siemens, German companies Cadolto Datacenter GmbH, and Legrand Data Center Solutions.

In addition, Siemens offers a number of data center solutions.

Siemens AG (Berlin and Munich) is a leading technology company focused on industry, infrastructure, mobility, and healthcare. The company’s purpose is to create technology to transform the everyday, for everyone. By combining the real and the digital worlds, Siemens empowers customers to accelerate their digital and sustainability transformations, making factories more efficient, cities more livable, and transportation more sustainable. A leader in industrial AI, Siemens leverages its deep domain know-how to apply AI – including generative AI – to real-world applications, making AI accessible and impactful for customers across diverse industries. Siemens also owns a majority stake in the publicly listed company Siemens Healthineers, a leading global medical technology provider pioneering breakthroughs in healthcare. For everyone. Everywhere. Sustainably. In fiscal 2025, which ended on September 30, 2025, the Siemens Group generated revenue of €78.9 billion and net income of €10.4 billion. As of September 30, 2025, the company employed around 318,000 people worldwide on the basis of continuing operations. Further information is available on the Internet at www.siemens.com.

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