In 2002, a prototype version of the foundation was installed to support a Vestas V90 3MW turbine in Frederikshavn, Denmark.
The design was developed further and in 2009 a new foundation was installed at the Horns Rev 2 offshore project to support the met mast. The bucket measures 15 metres wide and 7.5 metres high.
After six years of operation, the foundation at Horns Rev was decommissioned in July 2015. UF said the foudation left the seabed unmarked and returned to its original state.
UF's design incorporates a monopile, a suction bucket and a gravity base foundation into one design. It can be floated to the project site, requiring just two tug boats instead of a large and expensive installation vessel.
Installation is quick: its record is just seven hours. It uses a bespoke suction pump to secure the base to the seabed.
The foundation will be installed at the 18MW Icebreaker project in Lake Erie, Ohio, US. Six 3MW turbines will be installed at the site but the design has been certified to hold 8MW turbines in 55-metre deep waters, UF said.