ON-BOARD HYDRAULIC SYSTEM
The O2 is Orbital Marine’s third generation floating tidal turbine. A striking new addition to its design are the retractable legs that lower the 20-metre turbine blades below the surface of the water. The O2 provides 2MW of clean sustainable energy – enough to power 2,000 homes.
At 72 metres long and weighing 680 tonnes, O2 sits in the Orkney tidal currents – perfect for generating power, but also a real test of the system’s robust engineering. Orbital Marine approached Denley to design a bespoke, on-board hydraulic system with two objectives: to tension the O2’s seabed anchors, and to deploy and retract the turbine support legs.
The Orbital O2 is the most powerful floating tidal turbine in the world, and is leading the charge for tidal power that will help the UK reach ‘net zero’ in 2050. Befitting such cutting edge technology, Denley’s hydraulic solution is equally innovative in its design.
Denley engineers combined the simplicity of hydraulic flow division with the flexibility of a variable speed drive. A sprinkle of insightful problem-solving was also added to eliminate the need for external hydraulic hoses, improving reliability and simplifying maintenance.
INNOVATIVE HYDRAULIC DESIGN
PRECISE TURBINE POSITIONING
POWER AND CONTROL