Beyond using our slip joint technology to install wind turbines, DOT supports innovations on pile driving technology, monopile design and cable and pipeline installation. As an example, DOT is involved in the development a gentle driving of piles (GDP) concept for the installation of monopiles. GDP helps decrease the LCoE by decreasing costs of monopile installation while maintaining current levels of predictability and feasibility. On top of that GDP decreases environmental impact of monopile installation by reducing harmful noise and enabling full recovery of monopiles during removal.
Gentle driving of piles research project
Design, construction and testing of a small scale GDP shaker onshore in Rotterdam proving the GDP concept in sand.
Floating installation of an XXL offshore wind turbine
Demonstrating floating installation of our large offshore wind turbine combining Heerema’s Rotor-Nacelle assembly with the slip joint technology. Successful demonstration of:
- Rotor Nacelle assembly
- Slip joint based seafastening
- Nacelle – Tower slip joint
All our innovations are supported by an extensive track record of studies, prototypes and offshore testing. Our approach is to “put steel in the water”: relentlessly testing the concepts in its designated environment of operation.