Offshore Renewable Energy Ocean Waves Tides And Offshore Wind

This book is a printed edition of the Special Issue "Offshore Renewable Energy: Ocean Waves, Tides and Offshore Wind" that was published in Energies

This book covers technical articles based on individual contributions from a number of authors working on offshore wind, wave and tidal energy research. Articles describing various aspects of offshore wind, wave and tidal energies including resource prediction, shape optimisation of energy converters, optimal design of rotors for cost reductions, numerical modelling of large scale array energy converters, numerical simulation of electricity converting machines, hybrid energy converters, control system for generators, farm interactions, assessing economic benefits, and energy production benefits have been included in this book. This book will find its use to researchers and industries working in offshore renewable technologies.

Wave, tidal and offshore wind technologies have long held the promise of seemingly limitless energy supplies. In practice, while offshore wind is growing relatively rapidly, all three sectors have lagged behind expectations. This book, from the International Energy Authority Renewable Energy Technology Deployment implementing agreement (IEA-RETD), examines the reasons for this and suggests how barriers to deployment might be overcome. Beginning with an assessment of the marine energy resource, it provides a detailed introduction to the main technologies currently being employed to harness wind, tidal and offshore wind power. It then examines the types of policies which are used to encourage deployment around the world, and progress towards meeting targets. The economics of offshore energy projects are discussed, along with risks that projects face and the types of finance which are available. A final section turns to barriers - both technical and non-technical (including environmental, health and safety, skill related, supply chain and more) - and in all cases suggests how to mitigate and remove these barriers. Highly illustrated in full colour, this is an indispensable resource for anyone - whether in industry, policy or academia - looking to learn more about how deployment of offshore renewable energy technologies can be encouraged.

Energy from wave and tidal power is a key component of current policies for renewable sources of energy. This book provides the first comprehensive exploration of legal, economic, and social issues related to the emerging ocean energy industry, in particular wave and tidal energy technologies. This industry is rapidly developing, and considerable technical literature has developed around the technology. However, it is shown that challenges relating to regulation and policy are major impediments to industry development, and these aspects have not previously been sufficiently highlighted and studied. The book informs policymakers, industry participants, and researchers of the key issues in this developing field. Ocean energy is considered in the context of the blue economy and an industrialising ocean, and the topics covered include: development of policy (policy instruments, risk and delay in technology development); legal aspects (consenting processes, resource management, impact assessment); human interactions (conflicts, consultation, community benefits); and spatial planning of the marine environment. While offshore wind energy, sited in the oceans but not strictly derived from the ocean, is not the primary focus of the book, there is also discussion of the similarities and differences between offshore wind and wave and tidal power policy dimensions.

Covering technology, modeling, field experience, installation and grid connection, this text offers a high-level technical overview of ocean renewable energy generation. It examines wave, tidal, current, salinity, and thermal energy generation and includes the novel technology of marine solar arrays.

The worldwide potential of electric power generation from marine tidal currents, waves, or offshore winds is enormous. The high load factor resulting from the fluid properties and the predictable resource characteristics make tidal and wave energy resources attractive and advantageous for power generation and advantageous when compared to other renewable energies. The technologies are just beginning to reach technical and economic viability to make them potential commercial power sources in the near future. While only a few small projects currently exist, the technology is advancing rapidly and has huge potential for generating bulk power. Moreover, international treaties related to climate control and dwindling fossil fuel resources have encouraged us to harness energy sustainably from such marine renewable sources. Several demonstrative projects have been scheduled to capture tidal and wave energies. A number of these projects have now reached a relatively mature stage and are close to completion. However, very little is known to the academic world about these technologies beyond the basics of their energy conversion principles. While research emphasis is more towards hydrodynamics and turbine design, very limited activities are witnessed in power conversion interface, control, and power quality aspects. Regarding this emerging and promising area of research, this book aims to present recent results, serving to promote successful marine renewable energies integration to the grid or to standalone microgrids.

Engineers’ dreams and fossil energy replacement schemes can come true. Man has been tapping the energy of the sea to provide power for his industries for centuries. Tidal energy combined with that of waves and marine winds rank among those most successfully put the work. Large scale plants are capital intensive but smaller ones, particularly built in China, have proven profitable. Since the initiation of the St Malo project in France, similar projects have gone into active service where methods have been devised to cut down on costs, new types of turbines developed and cost competitiveness considerably improved. Tidal power has enormous potential. The book reviews recent progress in extracting power from the ocean, surveys the history of tidal power harnessing and updates a prior publication by the author.

Electrical Design for Ocean Wave and Tidal Energy Systems provides an electrical engineering perspective on offshore power stations and their integration to the grid. With contributions from a panel of leading international experts, this book is essential reading for those working in ocean energy development and renewable energy. Wave and tidal energy engineering has developed strongly in the past decade, with hundred-MW arrays of full scale grid connected wave and tidal devices planned for the next few years. Electrical Design for Ocean Wave and Tidal Energy Systems provides an electrical engineering perspective on these offshore power stations and their integration to the grid. Topics covered include: the selection and sizing of generators and their interaction with power electronics, power cables, connectors and umbilicals; grid integration and power quality issues; energy storage; the implementation of control systems in ocean energy devices modelling and simulation; the relative costings of various systems; and the influence of electrical design on overall project lifetime cost. With contributions from a panel of leading international experts, Electrical Design for Ocean Wave and Tidal Energy Systems is essential reading for electrical design engineers, researchers and students working in ocean energy development and renewable energy.