The M4 wave energy generator prototype, measuring 24 meters in length and nearly 10 meters in width, will float on the water’s surface and generate electricity from waves.
The M4 generator is expected to start operating at the end of September. (Photo: Marine Energy Research Center)
The Marine Energy Research Center at the University of Western Australia (UWA) is implementing the Wave Energy Demonstration Project by developing the Multi-Hull Multiple Mode Moored (M4) machine. This wave energy generator prototype was unveiled last week and is expected to commence operations at the end of September, as reported by New Atlas on September 9.
By harnessing the strong and stable wave resources along the coast of Albany, the project aims to explore the potential for local economic diversification and develop a future zero-emission industry. “M4 is designed to harness wave power, and by making our data public, we hope to drive innovation in renewable energy at both local and global levels,” said Professor Christophe Gaudin, director of the Institute of Oceanography and Marine Energy Research Center at UWA.
A scaled-down version of the M4 operating in a test tank. (Video: Blue Economy CRC).
The M4 resembles a spider on the water’s surface. It will operate for six months in King George Sound, the port city of Albany. After testing, a larger version will be constructed and deployed offshore.
The M4 prototype is 24 meters long and nearly 10 meters wide—approximately the length of an average wave in King George Sound. The machine consists of a hinged steel frame supported by four floating buoys. Thanks to its hinged design, the angular movement of the frame in response to waves will generate electricity with every fluctuation of the surrounding water.
The M4 has a maximum output of 10 kW, which is not significant considering its size. The more compact Waveswing prototype, developed by AWS Energy in Scotland, has a maximum output of up to 80 kW. However, the research team will gather more information from the testing process. The M4 will need further improvements and must overcome challenges when operating underwater, such as corrosion, biological fouling from algae and barnacles, and damage from debris carried by ocean waves.
