The University of Western Australia’s (UWA) Moored MultiModal Multibody (M4) wave energy converter (WEC) has passed a survival mode test, demonstrating its endurance in harsh offshore conditions.
During testing on November 18, 2024, the device endured waves up to 2 meters high, achieving a maximum hinge angle of 39.8 degrees while withstanding mooring loads exceeding 2,000 kilograms.
According to the University of Western Australia (UWA) Oceans Institute, the trial is showcasing the M4 system’s ability to remain stable under challenging sea states. Recorded metrics included a significant wave height of 1,3 meters, a mean wave direction of 7 degrees relative to the device, and a maximum roll of 14.4 degrees.
The data provides insights into the operational limits of the M4 system and its readiness for real-world deployment in variable ocean conditions.
M4 survival mode testing
The project, run by UWA’s Marine Energy Research Australia and funded by the Blue Economy CRC and the Western Australian State Government, is part of ongoing research into the Great Southern’s potential as a wave energy hub. The team hopes the data will provide insights into the effectiveness of wave energy in the area, potentially paving the way for future projects.
The M4 wave energy device , featuring a triangular forward frame, a trailing arm, and a power generator on the connecting hinge, is built from structural steel beams and four steel floater buoys for buoyancy and ballast.
Earlier in November, the M4 WEC was deployed in King George Sound, Albany, where the device started transmitting performance data, as it beings the six-month test phase.
Before that, the wave energy device was transferred to the Albany Waterfront Marina , from where it was prepared for deployment to the offshore testing site in King George Sound.