Energy-efficient buildings

Within the scope of our climate target, we work diligently to continue to reduce our energy consumption and the carbon footprint associated with it. Efficient facility management plays a key role in these efforts. Around 22 percent of our energy consumption throughout Germany can be attributed to usage of our buildings, for example.

Our facility energy management activities can be broken down into "heat energy" and "power consumption." We have defined sub-targets for each of these areas to help us attain our climate target in Germany. Progress is measured twice a year.

Two approaches are involved in achieving our sub-targets. One of these is to reduce our office space. This is done through staff reduction as well as optimizing space usage by introducing new office concepts. Another focal point is increasing the energy efficiency of our processes. For this we use an ISO 50001-compliant energy management system. We identify need for improvement by using specific indicators such as "kilowatt hours per square meter," "energy consumption around midnight" or "peak loads" to compare similar facilities. Power & Air Solutions is responsible for the energy management system. We also conduct research projects on energy-efficient network operation to help us develop energy-efficient operation methods for our workstations.

Heat and hot water
We use approximately 600 GWh of heating energy throughout Germany each year, primarily by using gas and fuel oil as well as district heating. That is the same amount of energy needed to provide around 100,000 modern apartments with heat and hot water. To reduce consumption, we calculate the basic repairs needed at our facilities, conduct efficiency analyses and focus on necessary and particularly efficient measures within the scope of the available budget such as:

  • Optimizing heating systems
  • Renewing heating systems and pumps with condensing boiler technology
  • Recovery of waste heat produced by data centers
  • Using cogeneration units

We use a standardized indicator system to assess all of our buildings before introducing these measures. We use the data to identify buildings with particularly high consumption levels, analyze the weak points and potential areas of optimization in those buildings via detailed microanalyses and then specify corresponding focal points for improvement.

Group Facility Management is responsible for measurements, analyses and developing appropriate measures. During the reporting period and under the direction of Group Facility Management, we installed systems to use waste heat generated for IT to heat the buildings at four of our data centers. The tests that followed proved the effectiveness of those systems. We have also begun installing this technology at a fifth data center location. We are planning to conduct cost-effectiveness analyses for another 40 locations over the course of 2015.

Our employee workstations, lighting, IT and building technology, including pumps, ventilation, cooling and elevators, make up the greatest share of power consumption in our buildings. We focus our energy conservation measures on the following areas:

  • Using LED lighting and motion detectors in underground parking structures and hallways
  • Using state-of-the-art pumps and fans
  • Switching off building technology when the building is not in use

In 2014 we decided to equip around 600 of our technology sites with solar power systems. The idea came from Telekom Deutschland employees who took a closer look at how we can work more simply, more effectively and with better integration at our company by the year 2018. Our internal energy service provider, Power and Air Solutions, installed photovoltaic systems on the roofs of around 300 offices. This is expected to reduce our carbon footprint by 1,600 metric tons of  CO2 a year, bringing us closer to achieving our climate target for 2020.

Magyar Telekom's 2014 energy-efficiency measures included introducing ventilation equipment to cool large technical facility rooms. That allowed them to reduce their use of air conditioning units as well as their electricity consumption. The company completed a pilot test on smart cooling, which was targeted at optimum energy-efficient operation of air conditioning units and reducing associated energy consumption. Magyar Telekom has also begun projects to increase room temperature and use residual heat. Thanks to initiatives to replace furnaces, update heating systems and use  residual heat generated in certain technical facility rooms, the company was also able to reduce its consumption of natural gas and district heating.