Installation and Operational Characteristics of the AK1000 Tidal Turbine
- Preparation of the location.
The AK1000 Tidal Turbine device will be installed on the seabed in a specially prepared location at the European Marine Energy Centre base off Orkney under the Pentland Firth. This Firth is a channel between Orkney Island and the Scottish most Northern Coast, noted for its strong tidal currents that will adequately supply even this large tidal energy turbine.
Here the seabed surface on which the bottom of the device support will rest has been prepared and leveled, where a subsea cable junction box with the shoreside supply cables connected is also installed on the seabed, ready to connect the turbine output power cables.
The the AK1000 weighing 1300 tons will be lifted from the deck of the transport barge and lowered onto down onto the prepared seabed location. Once on the seabed, its exact orientation and levelness will be checked by ROV's and/or divers and adjustments made if required.
Once this is confirmed and approved, the piles will be inserted in the pile guides and hammered into the seabed rock, using a pneumatic or hydraulic pile-driver. The piles are then grouted by injection of concrete into the hollow piles and the gap between the pile and pile guides.
The device is now handed over to the commissioning engineers who will connect the electrics, then set in motion the rotor that is facing the direction of the tidal current.
When operating, the innovative design of the twin rotors mean that the nacelle does not have to rotate into the tidal current as the tides turn.
This is achieved by the blades on both rotors being fixed to turn only in the direction of the current, the nacelles remaining stationary on their support beam.
The power produced by the generators will be transmitted through subsea cables into a sub-station ashore, from where it will be distributed to the Island Grid.
atlantisresources - location
atlantisresources- AK1000 showing twin rotors.
atlanticresources - AK1000 design