- Irish Sea, UK
- Mono piles
- PBA 936
In 2009 Ballast Nedam Offshore Energy as a sub- contractor of MTHøjgaard pile-drove and drilled 25 foundations for the Rhyl Flats Offshore Wind Farm, located 8 km north east of Llandudno North Wales.
It is Wales second offshore windfarm in Liverpool Bay. These foundations has been successfully installed from the heavy lift vessel Svanen march-august 2009. Each monopile is app. 4,7 m diameter and weigh 200 tons.
During this job DDC was standby with the Wirth PBA 936 with a drill bit with 4400mm diameter. This PBA 936 is hydraulically driven by a Power pack and works with the reverse air lift drilling principal.