Geotechnical firm Bauer Renewables has installed a monopile foundation for a new tidal energy turbine in Orkney, Scotland using a newly designed seabed drilling rig.
According to the company, the work was made more complicated by the combination of working in 37m deep water and strong currents of up to 4.5m/s.
Working from a dynamic positioning vessel, Bauer grouted the 23m long, 2m diameter pile into its 11m deep rock socket at the test site of the European Marine Energy Centre. The monopole will be used by owner/operator Voith Hydro to support a 1MW tidal turbine.
Bauer chairman of the management board Professor Thomas Bauer said that the new technology had captured the attention of tidal energy developers around the world. “A drilled foundation of such dimensions has never before been executed,” he said.