The high voltage grids in the area around Aachen in Germany and Liège in Belgium are relatively well developed and are located close together but are not interconnected yet.
The transmission grid operators have therefore made the decision to build an underground direct-current connection between their two networks. This connection has been dubbed ALEGrO (Aachen-Liège Electric Grid Overlay).
Van den Berg is playing a distinct role in this process. Van den Berg is laying the entire 49 km cable run on Belgian soil, including a tunnel under the Albert Canal and the Maas. It is working jointly with Jan de Nul and K-Boringen for the 670 m-long tunnel.