At Telekom, we’re acting sustainably 365 days a year.


At Deutsche Telekom, it’s our daily job to use clever ideas, bold concepts and a great deal of commitment in order to fulfil our sustainability promise. In our new sustainability series, our employees tell us how they do this.

We’ll take you behind the scenes and show you how we’re working on constantly improving our products and services for you. In doing so, we ask ourselves the important questions:

What can be done more sustainably and how?

“We make digital power guzzlers visible”

Efficient programming reduces the power consumption of software. The two IT experts Julian Kipka and Nicolas Wellmann, together with a small team, have created a tool for this purpose. It measures how much power a program consumes. A minimal version is already finished.


What lasts a long time ... becomes a tree

Alexander Ziemer from the Business Customers division has a project close to his heart: anyone searching for something on the Internet should do something good with it. He and Simone Schlief from Green Pioneers have been working on this for five years – and now the time has come: from April 3, “Ecosia” will be Deutsche Telekom’s standard search engine.

“There is no mobile phone that is not worth returning”

Steffen Wasmus is the ecological conscience of Telekom. His goal: to make the mobile devices in our product range greener. For this purpose, he defines the environmental requirements of the company for production and materials – and says: Those who use smartphones and similar devices also play an important role.


Fitnesstraining für Antennen

David Maschke is a kind of fitness trainer for our mobile phone systems. The colleague from the technology department ensures that they can perform at their peak, take breaks and do not eat all the time. He and the entire team of energy management in mobile communications make a significant contribution to reducing power consumption in the company.

When technology giants lend a hand ...

… you can move mountains together! That is Saima Ansari’s mission. She is getting giant technology suppliers to join Deutsche Telekom in the circular economy and energy efficiency – and change the world together.


Chucked in the bin

Where to dispose of old work clothes? This question also occurred to Ruediger Adam. And since he didn’t find a satisfactory answer, he developed an intelligent collection container for jeans and work textiles. There are already 35 of them at our company – the goal is to equip all Telekom locations with them.

The man on the roof

Chris Mathea regularly climbs on DT’s rooftops – that’s part of his job. He’s responsible for equipping our locations with renewable energy sources. In our interview, he explains why installers fear him, what’s most annoying in his job and why photovoltaics in Munich caused five police alerts.


Want to know more about our sustainable solutions and services? Here’s all you want to know.

We are consistently committed to a resource-conserving economy and way of life. You can find out more here.

Wir bieten nicht nur das beste Netz, sondern sorgen auch für besonders grüne und nachhaltige Produkte und Initiativen.

We not only offer the best network, but also ensure particularly green and sustainable products and initiatives.

Infos & Downloads

Infos & Downloads

We are making our future not only more digital, but also safer, fairer and more livable.