Carnegie Wave Energy Installation
Marine Renewable Energy Installation at Sepia Depression (Garden Island) for Carnegie Wave Energy.
Project Background:
Perth Wave Energy Project – CETO 5 Technology supports the first commercial-scale grid power and desalinated water connected wave energy project.
Integrated service offering:
Tugs, construction barge, crew transfer vessel and utility vessels to facilitate installation and maintenance of all subsea infrastructure.
Dive Support Vessels with Enriched Air Nitrox capability to increase efficiency at the 25m profile of the offshore lease.
TAMS’ Work Scopes:
- Installation of a 3.5 km dual high pressure pipeline from Garden Island to the offshore site, including:
- 120 m conduit and rock bolting campaign to restrain the pipelines and control cable in the nearshore approach and through the shore crossing.
- Pipeline stabilisation (using 290 tonnes of concrete strap weights) between the nearshore approach and offshore lease.
- Freespan correction using innovative split style concrete blocks and subsea drilled rock pins.
- Installation of 3.5 km bundled control umbilical from onshore plant, through shore crossing and to each of the units in the offshore lease.
- Installation of an 800 m desalination outfall pipeline and diffuser end from shore.
- Installation of interconnections to valve sleds, pods and remaining subsea infrastructure to support latter deployment of the mid-water pump and buoyant actuators.
- Deployment of three separate units including the buoy, pump, tether and lower connection arrangement into the existing foundation and respective connection receptacle.
