Portrait
Who we are
TransnetBW GmbH operates the electricity transmission grid in Baden-Württemberg. In doing so, we secure the electricity supply in the region, Germany and Europe. Our clients and partners include many electricity traders, power plant and distribution system operators in Germany and abroad.

About Transnet BW
Guaranteeing economic strength and quality of life
Some 80 transformers connect our transmission grid to the distribution grids in Baden-Württemberg. Via these access points, we supply electricity to internationally renowned industrial enterprises and more than 11 million people in Baden-Württemberg – reliably and at every hour of the day. In this way, TransnetBW ensures the economic strength and quality of life in south-west Germany.
In addition, our grid carries a large proportion of the electricity consumed in Germany and throughout Europe. Thirty-five interconnection points integrate the TransnetBW grid into the national and European grids. Together with our neighbouring network partners in Germany, France, Austria and Switzerland, we also make available the transmission capacities required for cross-border electricity transmission, equitably and without discrimination.
data and facts
TransnetBW at a glance
Legal form
TransnetBW GmbH
Founded
1998 as EnBW Transportnetze AG, renamed as TransnetBW GmbH in 2012
Transmission grid
220- and 380-kV power lines of length 3,111 km covering an area of 34,600 km²
Customers
Electricity generators and regional electricity providers, 11 million people in Baden-Württemberg, countless large industrial enterprises in Baden-Württemberg
Workforce
1,600 (2024)
Balance sheet total acc. to HGB
€ 6.5 billion (2023)
Sales revenue acc. to HGB
€ 7.7 billion (2023)
About Transnet BW
A young company with solid roots
TransnetBW GmbH was launched in March 2012 when the former EnBW Transportnetze AG – itself founded in 1998 – was spun off to form a separate company. In doing this, the Baden-Württemberg energy provider EnBW was following the European Commission’s requirements for the liberalisation of the energy market. The aim was to ensure the economic independence of the transmission grid operators and enhance competition.
About Transnet BW
Partners
We cooperate as partners in the following associations and organisations:
- European Network of Transmission System Operators for Electricity (ENTSO-E)
- Transmission System Operator Security Cooperation (TSC)
- Franco-German Agency for Energy Transition
- Joint Allocation Office
- Energy Research Society (FGE), RWTH Aachen
- International Grid Control Cooperation (IGCC / NRV)
- Equigy
- The Renewables Grid Initiative (RGI)
In the video
The heart of the transmission grid
Securely operating the transmission grid is of utmost importance in our work. Grid service and system management ensure that works in substations or on masts are synchronised with our main control centre, which controls the entire grid.
what drives us
The future is well within reach

Our vision
- We are the innovative energy hub in the heart of Europe.
- Our grid connects Baden-Württemberg with the energy sources of the future.

Our mission
- TransnetBW operates the transmission grid in Baden-Württemberg.
- We are designing the grid of the future and transmitting energy across state and national borders.
- We work to ensure a stable and reliable energy supply and in this way make a decisive contribution to the economic strength and quality of life of south-west Germany.
Downloads
- Starte Download von: TransnetBW Code of ConductTransnetBW Code of Conduct
- Starte Download von: Allgemeine EinkaufsbedingungenAllgemeine Einkaufsbedingungen
- Starte Download von: Verpflichtungserklärung gemäß LTMGVerpflichtungserklärung gemäß LTMG
- Starte Download von: Meldung von UnfällenMeldung von Unfällen