When existing overhead transmission lines are rebuilt, it is often necessary to increase the height of towers or move towers and install new foundations. Ramboll has often assisted Energinet.dk in these situations.
A new overhead transmission line is needed in order to secure the quality of supply in Denmark. Denmark puts a great effort into reducing CO2 emissions by expanding the production capacity based on renewable energy. Consequently, a more flexible electricity grid is needed to be able to transport the power from the offshore wind parks to the consumers as well as increasing the transmission capacity between international markets.
Ramboll has been appointed by Norwegian contractor Veidekke to carry out the detailed engineering of the Storheia Wind Farm north of Trondheim, Norway.
When antennas from different telecommunication operators were installed in the overhead transmission line towers of Energinet.dk, a static analysis of the towers and the foundation was needed. Ramboll assisted Energinet.dk with all antennas installed in the their towers.
In order to enhance the view of Little Belt, 12 km of overhead line was removed and replaced with cable. Ramboll was responsible for the project description of the dismantling of the cables and the 120 m tall towers – as well as designing foundations for the new towers.
Studstrup Power Station in Aarhus is about to reach the end of its service life and will now undergo extensive refurbishment. Ramboll is advising the owner of the plant, DONG Energy, in all project phases for this work from analysis through to commissioning.