Power from renewable sources

In Germany, Deutsche Telekom’s power requirements are covered 100 percent by renewable energies.

Zoom in

The photovoltaic system on the Deutsche Telekom building in Darmstadt has been producing electricity from solar energy since December 2008.

Zoom out

The photovoltaic system on the Deutsche Telekom building in Darmstadt has been producing electricity from solar energy since December 2008.

The sunny side of energy production – photovoltaic systems

After an unbelievably quick erection period of less than a month, the Deutsche Telekom building in Darmstadt began operating its photovoltaic system in December 2008. This is the latest of in all nine solar collectors which Deutsche Telekom runs in Germany. Annually, the photovoltaic system in Darmstadt supplies 45,500 kWh to 58,500 kWh power generated from solar energy – even when the sun is hidden by the clouds. This is equivalent to an average annual power requirement of approximately twelve four-member households. The power generated in around 250 solar modules is fed into the local electricity grid. An energy monitor helps to actually make the ecological power generation visible. In the entrance area of the Darmstadt building, every visitor can read the instantaneous output of the photovoltaic system. Photovoltaic systems in Bonn, Munich, Cologne and Karlsruhe, for instance, additionally contribute towards environmentally friendly power supply. In Greece, OTE operates over 170 smaller photovoltaic systems. The energy produced by these systems is not fed into the local power grid; instead it is used to power mobile communications systems in rural areas.

Fresh impetus – electricity from wind turbines

OTE uses wind turbines to supply power to base stations on the remote Greek islands in the Aegean Sea. In Germany too, Deutsche Telekom focuses on wind energy. In several locations in Germany, the power of the wind is harvested to generate electricity.

Energy from hydrogen

Deutsche Telekom’s aim is to guarantee all mobile communication customers uninterrupted network operation round the clock – even in the event of disasters or power failures. To this effect, Magyar Telekom in Hungary is conducting tests on the application of hydrogen-powered fuel cells to ensure emergency power supply to base stations. The fuel cells have a particularly long service life and are, above all, environmentally friendly. During the power generation process, only steam and heat are released into the environment.