Pipeline installation works have now commenced at Carnegie’s Perth Wave Energy Project.
The first stage of installation is the shoreline conduit crossing which involves the installation of a 400mm diameter high density polyethylene (HDPE) pipe, which will hold the high pressure delivery and return pipes that transmit the high pressure water between the offshore and onshore project sites, and a 110mm HDPE pipe which will hold the communications cable and desalination outfall pipe.
The company also said that the two main subsea pipelines, and associated end fittings and interconnections have now arrived in Australia from the US ahead of swaging and testing before delivery to offshore installer, Total AMS Pty Ltd, for mobilisation ahead of installation.
The Perth Wave Energy Project utilises subsea high pressure pipelines for the transmission of high pressure water. The pressurised water is pumped by the CETO units to the onshore power station and desalination plant, which then returns the low pressure water back offshore to the CETO units to be re-pressurised.
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Press release, February 3, 2014; Image: Carnegie Wave Energy Ltd