The study begins with an assessment of Australian ORE resources and their potential for providing accessible forms of renewable energy (e.g., magnitudes, extent of variability and forecasting). Ocean energy conversion devices and their characteristics are then considered, together with specific examples of devices for which performance data are available. Issues in setting up "farms" of multiple devices are described, along with an assessment of how much energy might be extracted from specific coastal locations identified by the resource survey. The analysis concentrates particularly on wave energy as the most likely form of significant ORE in Australia. This information is then used to develop scenario projections of the possible market share of wave energy in Australia up to 2050. Facilitation issues, including competing uses such as shipping and fishing are considered, with a brief commentary on broad environmental aspects of significant ORE activity. Finally, there is a brief survey of Australian (including recent R&D) and international ORE developments and activities.