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Anchorage

The connection to the seabed is vital, having to withstand several hundred tons of sideways thrust from the turbines when operating, as well as hydrodynamic structural loading from storms and currents.

The Triton platform system only requires a simple passive shear connection at the seabed for location – all the mechanical and wearing parts such as bearings, locking components and stabbing systems are located on the tether arm and as such are retrievable for servicing.

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Anchorage

All Triton platforms make their connection to the anchorage point close to the seabed, predominantly in shear. In contrast, single turbine installations have to be mounted more than one blade length above the seabed, producing a considerable bending moment at the anchorage. In consequence, a Triton platform with six turbines can use the same anchorage as a single cantilevered turbine of the same capacity. The same goes for the cable connection – a six-turbine Triton uses a single cable and connection, as does a single turbine installed on its own seabed mounting

Mono-pile

Monopile

The simplest structure is a drilled monopile which does not need to protrude much from the seabed, thus keeping overturning moments low.

Pinned frame

Pinned frame

Some seabed conditions may be more suited to a pinned frame system, which spreads the load over a larger area

Gravity base

Gravity base

For seabed conditions that are not stable enough for a drilled or pinned location system, a gravity base can be used such as this one designed by Ramboll    

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