Germany | Deutschland

Tunnelling for Berlin Diagonal Power Link ­Completed

Happy about the milestone: (from left) Stefan Kapferer (CEO 50Hertz), Bernard Gustin (CEO Elia Group), Henning Schrewe (Managing Director Implenia Civil Engineering GmbH), Kai ­Wegner (Governing Mayor of Berlin) Credit/Quelle: Implenia
Happy about the milestone: (from left) Stefan Kapferer (CEO 50Hertz), Bernard Gustin (CEO Elia Group), Henning Schrewe (Managing Director Implenia Civil Engineering GmbH),
Kai ­Wegner (Governing Mayor of Berlin)
Credit/Quelle: Implenia

The underground electricity highway for Berlin is taking shape: Within two years and nine months, the “Candela” tunnel boring machine reached its destination at the end of June 2025 after almost 7 km, 20–30 m deep underground in Berlin: the Mitte substation. This completes the tunnel drive for the first section of the 380 kV Diagonal Power Link in Berlin – a central building block for a future-proof power supply in the capital.

The Herrenknecht TBM’s cutting wheel weighing around 20 t was successfully lifted out of the target shaft – a fitting way to celebrate the breakthrough. High-ranking...

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