Gas network

We ensure a reliable supply – from Lower Saxony to Lake Constance.

Telecommunications network

Our fibre optics network provides a telecommunications infrastructure with strong broadband performance.

The future of energy

We are preparing our networks for the transmission of climate-neutral, green gases and hydrogen.

About us

Learn more about our company.


Where we want to go and how we would like to develop.

Open positions

Become part of our team – here you will find our open positions!

Working at terranets bw

How we work, what we offer and how you can make a difference.

Our locations

Discover more about the work at all nine locations.

Internships and training

Discover what we offer in way of internships, traineeships and apprenticeships.

Current gas supply situation

As an operator of critical gas supply infrastructure, we would like to inform you about the current situation. 

Hydrogen initiative for BW

We are committed to connecting Baden-Württemberg to the European hydrogen infrastructure.

Emergency no. +49 711 7812 1220

Hazardous Incident Ordinance info. for Sandhaus Gas Storage Facility & Natural Gas Safety Data Sheet


More shipping capacity for

To increase gas shipping capacities for Baden-Württemberg, we are building the Nordschwarzwald pipline from Au am Rhein via Ettlingen and Pforzheim to Leonberg.

The first section (15 km) from Au am Rhein to Ettlingen was completed in 2014. The second section (54 km) between Ettlingen and Leonberg was finished in 2015/16.

On 22 January 2016, the Nordschwarzwald pipeline was symbolically commissioned by Baden-Württemberg´s Minister for the Environment, Climate and Energy Industry, Franz Untersteller MdL (Member of the State Assembly) and terranets bw´s Supervisory Board Chairman presiding at that time, Dr. Hans-Josef Zimmer.

In Au am Rhein, the new pipeline is making a further connection to the Trans Europa Naturgas Pipeline (TENP) for our transmission system. The TENP, which transports gas from the Netherlands to Switzerland and Italy, is one of the largest and most important pipelines for the secure supply of gas in Europe.

How a gas pipeline is built

Data and facts

ca.71 km
600 mm
nominal width
80 bar
design pressure
10 m
protective strip
25 m
working strip

Please contact us

We are happy to help you.

Hartmut Drosch

Head of Operations and Maintenance

Hartmut Drosch

+49 711 7812 1328

Christoph Kröhnert

Project Manager

Christoph Kröhnert

+49 711 7812 1326