BioPower Systems is a renewable energy technology company based in Sydney Australia. We are developing systems for both wave and tidal power conversion. The company is currently working on ocean-based pilot projects and follow-on market opportunities for its products and services.
The wave power system, bioWAVE™, is based on the swaying motion of sea plants in the presence of ocean waves.
The hydrodynamic interaction of the buoyant blades with the oscillating flow field is designed for maximum energy absorption. In extreme wave conditions the bioWAVE™ automatically ceases operating and assumes a safe position lying flat against the seabed. This eliminates exposure to extreme forces, allowing for lighter designs and substantial cost savings.
Systems are being developed for 250kW, 500kW, 1000kW capacities to match conditions in various locations.
The tidal power conversion system, bioSTREAM™, is based on the highly efficient propulsion of Thunniform mode swimming species, such as shark, tuna, and mackerel.
The bioSTREAM™ mimics the shape and motion characteristics of these species but is a fixed device in a moving stream. In this configuration the propulsion mechanism is reversed and the energy in the passing flow is used to drive the device motion against the resisting torque of an electrical generator.
Due to the single point of rotation, this device can align with the flow in any direction, and can assume a streamlined configuration to avoid excess loading in extreme conditions. Systems are being developed for 250kW, 500kW, and 1000kW capacities to match conditions in various locations.
BioPower Systems has developed a novel singular mounting system called bioBASE™. This system is modeled on the seabed holdfast mechanism used by large sea plants, such as the giant kelp. In such systems, the vertical and lateral loads that are translated to the seabed by the main shaft are re-distributed into many smaller elements that engage with the bottom strata. This mechanism serves to distribute the forces and alleviate excess loads.
The bioBASE™ utilises rockbolting technology for the multiple ‘roots’ of the system, and does not require large specialised vessels or drill rigs due to the small gauge of each bolt.
Once the bioBASE™ has been installed, the surmounting device (either the bioWAVE™ or the bioSTREAM™) is easily attached and secured with the assistance of a single surface vessel. Other applications of the bioBASE™ technology are offshore wind turbines and deepwater foundations.