Offshore Wind

Harnessing wind energy in offshore environments.

Similar to land-based wind technologies, offshore wind uses turbines to generate energy which is delivered to the shore via an export cable. A main advantage of offshore wind is the stronger and more consistent winds that blow offshore, allowing the use of larger turbine blades. The development of offshore wind in Europe and Asia has preceded development activities in other parts of the world. However, several projects in the United States are currently underway. While the most common offshore wind energy technology is a three-bladed horizontal axis turbine, there are a variety of foundation types which can support the deployment of devices in a range of aquatic environments – shallow nearshore habitats to deeper offshore environments.

 

Monopile Foundation

 

Monopile foundations are used at shallow depths (0-30 m) and consist of a pile being driven to varying depths into the seabed (10-40 m) depending on the soil conditions. The pile-driving construction process is an environmental concern as the noise produced is incredibly loud and propagates far in the water, even after mitigation strategies such as bubble shields, slow start, and acoustic cladding are employed. As with land-based wind energy, collision risk with birds and bats is a major concern, though the impact is more difficult to quantify because carcasses that provide evidence of collisions become lost at sea. While the footprint of offshore wind energy is relatively small, it may still cause scouring. As with all electricity generation, there is a slight concern that electromagnetic fields generated by power cables may affect animals that use Earth's natural magnetic field for orientation, navigation, and hunting. Likewise, chemicals such as anti-corrosion paint and small amounts of oil and grease may enter the waterbody during spills, though some turbine designs do not require lubrication. Artificial reefing is likely to occur around wind farms as the new hard substrate provides protection and attracts colonizing invertebrates.

Tripod Fixed Bottom

 

Tripod fixed bottom foundations are used at transitional depth (20-80 m) and consist of three legs connecting to a central shaft that supports the turbine base. Each leg has a pile driven into the seabed creating a wide foundation that allows for the piles to be placed at a shallower depth in the seabed. The environmental effects are very similar to monopiles, except that the footprint is a little larger.

Gravity Foundation

 

Gravity foundations are used at shallow depths (0-30 m) and consist of a large and heavy base constructed of steel or concrete to rest on the seabed. The footprint is relatively large and may cause scouring, artificial reefing, or physical destruction of habitats upon introduction. Otherwise, the environmental effects are similar to monopiles.

Gravity Tripod

 

Gravity tripod foundations are used at transitional depths (10-40 m) and consist of two heavy concrete structures connected by three legs where one structure sits on the seabed while the other sits above the water. Very few offshore windfarms are currently using this foundation. The environmental concerns are identical to those of gravity foundations, though the scouring effect may be less significant depending on the design.

Floating Structure

 

Floating structure foundations are used at deep depths (40-900 m) and consist of a balanced floating structure moored to the seabed with fixed cables. The floating structure may be stabilized using buoyancy, mooring lines, or a ballast. The mooring lines may cause minor scouring or pose a risk of collision, but the turbine foundation is mostly located in the upper layer of the water column where there tend to be less organisms.

Total Results: 1260
Title Author Date Type of Content Technology Type Stressor Receptorsort descending
Offshore Wind Turbines and Commercial Vessel Traffic in the Atlantic Ocean Molly Grear August 2014 Blog Article Offshore Wind
Greenhouse Gas Emissions from Electricity Generated by Offshore Wind Farms Reimers, B., Özdirik, B., Kaltschmitt, M. December 2014 Journal Article Wind Energy general, Offshore Wind Socio-economics, Climate Change, Life Cycle Assessment
Understanding the Potential for Marine Megafauna Entanglement Risk from Marine Renewable Energy Developments Benjamins, S., et al. January 2014 Report Marine Energy general, Wind Energy general, Offshore Wind Static Device Marine Mammals, Cetaceans
Potential Impacts from a Worst Case Discharge from an United States Offshore Wind Farm Gunter, T. January 2014 Conference Paper Wind Energy general, Offshore Wind Chemicals
Prediction of Structure Borne Noise Radiation and Propagation from Offshore Impact Pile Driving Huikwan, K. January 2014 Thesis Wind Energy general, Offshore Wind Noise
Birds and Offshore Wind: Studying and Assessing Effects Pereksta, D. July 2013 Presentation Wind Energy general, Offshore Wind Birds
Assessing the Impact of Windfarms in Subtidal, Exposed Marine Areas Dahlgren, T., et al. February 2014 Book Chapter Wind Energy general, Offshore Wind Farfield Environment, Nearfield Habitat
Effective Mitigation of Underwater Piling Noise Karl-Heinz, E. February 2014 Conference Paper Wind Energy general, Offshore Wind Noise
Modeling of Underwater Noise from Pile Driving using Coupled Finite Element and Parabolic Equation Model with Improved Parabolic Equation Starting Field Park, J., Seong, W., Lee, K. January 2013 Journal Article Wind Energy general, Offshore Wind Noise
Effects of Offshore Wind Turbine Foundations on Mobile Demersal Megafauna and Pelagic Fish - Research at the Alpha Ventus Offshore Wind Farm Krone, R., Krägefsky, S. January 2013 Presentation Wind Energy general, Offshore Wind Benthic Invertebrates, Fish
Do Windmill Parks Function as a Refugium? Derweduwen, J., et al. February 2012 Journal Article Wind Energy general, Offshore Wind Fish
Post-Construction Results from The North Hoyle Offshore Wind Farm May, J. September 2005 Conference Paper Wind Energy general, Offshore Wind Benthic Invertebrates, Birds, Marine Mammals
Baseline Studies North Sea Wind Farms: Lot 5 Marine Birds in and Around the Future Sites Nearshore Windfarm (NSW) and Q7 Leopold, M., et al. January 2004 Report Wind Energy general, Offshore Wind Birds, Seabirds
Shortlist Masterplan Wind Aerial Surveys of Harbour Porpoises on the Dutch Continental Shelf Geelhoed, S., et al. December 2011 Report Wind Energy general, Offshore Wind Marine Mammals
Potential Effects of Offshore Wind Farm Noise on Fish Thomsen, F., et al. January 2007 Report Wind Energy general, Offshore Wind Noise Fish
Behavioral Reactions of Harbor Porpoise to Pile-Driving Noise Tougaard, J., et al. January 2012 Journal Article Wind Energy general, Offshore Wind Noise Marine Mammals
Assessment and Costs of Potential Engineering Solutions for the Mitigation of the Impacts of Underwater Noise Arising from the Construction of Offshore Windfarms Nehls, G., et al. September 2007 Report Wind Energy general, Offshore Wind Noise
Kentish Flats Offshore Wind Farm Turbine Foundation Faunal Colonisation Diving Survey Emu November 2008 Report Wind Energy general, Offshore Wind Static Device Nearfield Habitat
Report on Environmental Impact Assessment and Mitigation Strategies TROPOS July 2014 Report Marine Energy general, Wind Energy general, Offshore Wind Energy Removal, Lighting, Static Device Ecosystem, Fish, Nearfield Habitat, Socio-economics, Environmental Impact Assessment
Delivering Offshore Electricity to the EU: Spatial Planning of Offshore Renewable Energies and Electricity Grid Infrastructures in an Integrated EU Maritime Policy Seanergy May 2012 Report Wind Energy general, Offshore Wind
Effects of Pile Driving on the Behavior of Cod and Sole Thomsen, F., et al. January 2012 Journal Article Wind Energy general, Offshore Wind Noise Fish
Disruption to Place Attachment and the Protection of Restorative Environments: A Wind Energy Case Study Devine-Wright, P., Howes, Y. September 2010 Journal Article Wind Energy general, Offshore Wind Socio-economics
Renewable Energy Developments in an Uncertain World: The Case of Offshore Wind and Birds in the UK Masden, E., et al. January 2015 Journal Article Wind Energy general, Offshore Wind Birds
Investigating the Co-Existence of Fisheries and Offshore Renewable Energy in the UK: Identification of a Mitigation Agenda for Fishing Effort Displacement de Groot, J., et al. December 2014 Journal Article Marine Energy general, Wind Energy general, Offshore Wind Static Device Fish
Mapping Seabird Sensitivity to Offshore Wind Farms Bradbury, G., et al. September 2014 Journal Article Wind Energy general, Offshore Wind Dynamic Device, Static Device Birds
Environmental Effects and the Permitting Processes for a Deep Water Offshore Wind-Wave Hybrid Generator DeVault, G. March 2011 Report Marine Energy general, Wave, Wind Energy general, Offshore Wind
Marine Renewable Energy and the Environment: Progress and Challenges Polagye, B. January 2014 Presentation Marine Energy general, Wind Energy general, Offshore Wind
Effect of Electromagnetic Fields on Marine Organisms Bochert, R., Zettler, M. January 2006 Book Chapter Wind Energy general, Offshore Wind EMF
Near-Shore Wind Power - Protected Seascapes, Environmentalists' Attitudes, and the Technocratic Planning Perspective Wolsink, M. April 2010 Journal Article Wind Energy general, Offshore Wind Socio-economics
Standard for Measurement and Monitoring of Underwater Noise, Part II: Procedures for Measuring Underwater Noise in Connection with Offshore Wind Farm Licensing de Jong, C., Ainslie, M., Blacquière, G. September 2011 Report Wind Energy general, Offshore Wind Noise
Habitat Preferences of Harbour Seals in the Dutch Coastal Area: Analysis and Estimate of Effects of Offshore Wind Farms Brasseur, S., et al. January 2012 Report Wind Energy general, Offshore Wind Noise Marine Mammals, Pinnipeds
Performance and Integrity of Protective Coating Systems for Offshore Wind Power Structures after Three Years Under Offshore Site Conditions Momber, A., Plagemann, P., Stenzel, V. February 2015 Journal Article Wind Energy general, Offshore Wind Chemicals
A Life Cycle Co-Benefits Assessment of Wind Power in China Xue, B., et al. January 2015 Journal Article Wind Energy general, Offshore Wind Socio-economics, Climate Change, Life Cycle Assessment
The Potential Effects of Electromagnetic Fields Generated by Cabling Between Offshore Wind Turbines upon Elasmobranch Fishes Gill, A., Taylor, H. September 2001 Report Wind Energy general, Offshore Wind EMF Fish
Impacts to Marine Fisheries Habitat from Nonfishing Activities in the Northeastern United States Johnson, M., et al. February 2008 Report Marine Energy general, Wind Energy general, Offshore Wind Nearfield Habitat, Socio-economics, Fishing
A Review of Flight Heights and Avoidance Rates of Birds in Relation to Offshore Wind Farms Cook, A., et al. May 2012 Report Wind Energy general, Offshore Wind Static Device Birds
Wake Effects of Large Offshore Wind Farms Identified from Satellite SAR Christiansen, M., Hasager, C. October 2005 Journal Article Wind Energy general, Offshore Wind Energy Removal Farfield Environment
On the Effect of Structure-Induced Resistance and Mixing on Inflows into the Baltic Sea: A Numerical Model Study Rennau, H., Schimmels, S., Burchard, H. February 2012 Journal Article Wind Energy general, Offshore Wind Static Device Nearfield Habitat
INORE: Sharing is Knowing Cameron McNatt and Michele Martini October 2014 Blog Article OTEC, Tidal, Wave, Offshore Wind
Wind Energy Systems: Environmental Aspects and Impacts Manwell, J., McGowan, J., Rogers, A. January 2009 Book Chapter Wind Energy general, Offshore Wind Dynamic Device, Static Device Bats, Birds, Nearfield Habitat, Socio-economics
Why Offshore Wind Energy? Esteban, M., et al. February 2011 Journal Article Wind Energy general, Offshore Wind
In Situ Mortality Experiments with Juvenile Sea Bass (Dicentrarchus labrax) in Relation to Impulsive Sound Levels Caused by Pile Driving of Windmill Foundations Dubusschere, E., et al. October 2014 Journal Article Wind Energy general, Offshore Wind Noise Fish
Physical and Numerical Large-Scale Wave Basin Modeling of Fluid-Structure Interaction and Wave Impact Phenomena Yim, S., et al. June 2014 Journal Article Marine Energy general, Wind Energy general, Offshore Wind Energy Removal Nearfield Habitat
Great Skua (Stercorarius skua) Movements at Sea in Relation to Marine Renewable Energy Developments Wade, H., et al. October 2014 Journal Article Marine Energy general, Wind Energy general, Offshore Wind Static Device Birds
Development of Noise Mitigation Measures in Offshore Wind Farm Construction Koschinski, S., Lüdemann, K. February 2013 Report Wind Energy general, Offshore Wind Noise
Mitigating Wind-Turbine Induced Avian Mortality: Sensory, Aerodynamic and Cognitive Constraints and Options May, R., et al. February 2015 Journal Article Wind Energy general, Offshore Wind Dynamic Device Birds
Strategic Environmental Assessment (SEA) for Wind Energy Planning: Lessons from the United Kingdom and Germany Phylip-Jones, J., Fischer, T. January 2015 Journal Article Wind Energy general, Offshore Wind Socio-economics, Environmental Impact Assessment
Contextualizing Avian Mortality: A Preliminary Appraisal of Bird and Bat Fatalities from Wind, Fossil-Fuel, and Nuclear Electricity Sovacool, B. June 2009 Journal Article Wind Energy general, Offshore Wind Dynamic Device, Static Device Bats, Birds
Observations of Seabirds at Offshore Wind Turbines near Blyth in Northeast England Rothery, P., Newton, I., Little, B. March 2009 Journal Article Wind Energy general, Offshore Wind Birds, Seabirds
Assessment of Wind‐Farm and Other Bird Casualties from Carcasses Found on a Northumbrian Beach Over an 11‐Year Period Newton, I., Little, B. May 2009 Journal Article Wind Energy general, Offshore Wind Dynamic Device Birds, Seabirds
The Significance of Parameter Uncertainties for the Prediction of Offshore Pile Driving Noise Lippert, T., von Estorff, O. September 2014 Journal Article Wind Energy general, Offshore Wind Noise
Applicability of the "Frame of Reference" Approach for Environmental Monitoring of Offshore Renewable Energy Projects Garel, E., et al. August 2014 Journal Article Marine Energy general, Wind Energy general, Offshore Wind
Assessing the Underwater Acoustics of the World's Largest Vibration Hammer (OCTA-KONG) and Its Potential Effects on the Indo-Pacific Humpbacked Dolphin (Sousa chinensis) Wang, Z., et al. October 2014 Journal Article Wind Energy general, Offshore Wind Noise Marine Mammals, Cetaceans
Understanding Bird Collisions at Wind Farms: An Updated Review on the Causes and Possible Mitigation Strategies Marques, A., et al. November 2014 Journal Article Wind Energy general, Offshore Wind Dynamic Device Birds
A Biogeographic Assessment of Seabirds, Deep Sea Corals and Ocean Habitats of the New York Bight: Science to Support Offshore Spatial Planning Menza, C., et al. April 2012 Report Wind Energy general, Offshore Wind Benthic Invertebrates, Birds
Habitat Use and Selection of Black Scoters in Southern New England and Siting of Offshore Wind Energy Facilities Loring, P., et al. March 2014 Journal Article Wind Energy general, Offshore Wind Static Device Birds
Seabirds & Offshore Wind Farms Monitoring Results 2011 Vanermen, N., et al. June 2012 Report Wind Energy general, Offshore Wind Dynamic Device, Static Device Birds
Implications for Offshore Wind Farm Ornithological Cumulative Impact Assessment: How the Manipulation of Density and Breeding Season Parameters Affects the Outcomes of Collision Risk Modelling Tongue, A. September 2014 Thesis Wind Energy general, Offshore Wind Birds
Rights and Ownership in Sea Country: Implications of Marine Renewable Energy for Indigenous and Local Communities Kerr, S., et al. February 2015 Journal Article Marine Energy general, Wind Energy general, Offshore Wind Socio-economics
Will Offshore Energy Face "Fair Winds and Following Seas"?: Understanding the Factors Influencing Offshore Wind Acceptance Teisl, M., et al. January 2015 Journal Article Wind Energy general, Offshore Wind Socio-economics, Stakeholder Engagement
Sound Solutions: Construction of Offshore Wind Farms Without Underwater Noise Stichting de Noordzee January 2013 Report Wind Energy general, Offshore Wind Noise
Offshore Energy Structures Karimirad, M. January 2014 Book Marine Energy general, Wind Energy general, Offshore Wind
Cumulative Adverse Effects of Offshore Wind Energy Development on Wildlife Goodale, W., Milman, A. January 2016 Journal Article Wind Energy general, Offshore Wind Farfield Environment
Assessing Environmental Impacts of Offshore Wind Farms: Lessons Learned and Recommendations for the Future Bailey, H., Brookes, K., Thompson, P. September 2014 Journal Article Wind Energy general, Offshore Wind Dynamic Device, Noise Birds, Ecosystem, Marine Mammals
Guidance on the Assessment of the Impact of Offshore Wind Farms: Methodology for Assessing the Marine Navigational Safety Risks of Offshore Wind Farms UK Department of Trade and Industry January 2005 Report Wind Energy general, Offshore Wind Socio-economics, Navigation
Practical Management of Cumulative Anthropogenic Impacts with Working Marine Examples Wright, A., Kyhn, L. April 2015 Journal Article Marine Energy general, Wind Energy general, Offshore Wind Noise Ecosystem
Symbiotic Offshore Energy Harvesting and Storage Systems Slocum, A. September 2015 Journal Article Marine Energy general, Wave, Wind Energy general, Offshore Wind Birds
Lake Michigan Offshore Wind Feasibility Assessment Boezaart, A., et al. June 2014 Report Wind Energy general, Offshore Wind Noise Bats, Birds, Socio-economics
Design and Initial Component Tests of an Integrated Avian and Bat Collision Detection System for Offshore Wind Turbines Flowers, J., et al. April 2014 Conference Paper Wind Energy general, Offshore Wind Dynamic Device Bats, Birds
Offshore Activity of Bats Along the Mid-Atlantic Coast Sjollema, A., et al. June 2014 Journal Article Wind Energy general, Offshore Wind Bats
The Influence of Large Offshore Wind Farms on the North Sea and Baltic Sea - A Comprehensive Literature Review Clark, S., Schroeder, F., Baschek, B. December 2014 Report Wind Energy general, Offshore Wind Energy Removal Ecosystem, Farfield Environment, Nearfield Habitat
The New Noise Mitigation System 'Hydro Sound Dampers': History of Development with Several Hydro Sound and Vibration Measurements Burns, B., et al. November 2014 Conference Paper Wind Energy general, Offshore Wind Noise
New Achievements in Underwater Noise Modelling for Offshore Pile Driving Trimoreau, B., et al. November 2014 Conference Paper Wind Energy general, Offshore Wind Noise
New Hydro Sound Dampers to Reduce Piling Underwater Noise Elmer, K., Savery, J. November 2014 Conference Paper Wind Energy general, Offshore Wind Noise
Dynamic Measurements of Pile Deflections as a Source of Underwater Sound Emissions during Impact Driving of Offshore Pile Foundations Kuhn, C., et al. November 2014 Conference Paper Wind Energy general, Offshore Wind Noise
Hydro Sound Measurements during the Installation of Large Diameter Offshore Piles using Combinations of Independent Noise Mitigation Systems Burns, B., et al. November 2014 Conference Paper Wind Energy general, Offshore Wind Noise
Equivocal Effects of Offshore Wind Farms in Belgium on Soft Substrate Epibenthos and Fish Assemblages Vandendriessche, S., Derweduwen, J., Hostens, K. September 2015 Journal Article Wind Energy general, Offshore Wind Benthic Invertebrates, Fish
Towards a Numerical Model to Simulate the Observed Displacement of Harbour Porpoises Phocoena phocoena Due to Pile Driving in Belgian Waters Haelters, J., et al. September 2015 Journal Article Wind Energy general, Offshore Wind Noise Marine Mammals, Cetaceans
Responses of Harbour Porpoises to Pile Driving on a Temporal and Spatial Scale Braasch, A., Joost, M., Ketzer, C. February 2013 Conference Paper Wind Energy general, Offshore Wind Noise Marine Mammals
Survey of Beached Birds and Mammals: Sao Jãcinto - Torreira (Portugal) - March 2014 to March 2015 van Nus, T., Moreira, P. May 2015 Report Wind Energy general, Offshore Wind Birds, Marine Mammals
Study and Application of Underwater Noise Impact in Coastal Region off Western Taiwan Cheng, Y., et al. March 2014 Journal Article Wind Energy general, Offshore Wind Noise Marine Mammals
Valuing Public Preferences for Offshore Wind Power: A Choice Experimental Approach Krueger, A. September 2007 Thesis Wind Energy general, Offshore Wind Socio-economics
Renewables-To-Reefs? Decommissioning Options for the Offshore Wind Power Industry Smyth, K., et al. January 2015 Journal Article Wind Energy general, Offshore Wind Static Device Benthic Invertebrates, Ecosystem, Socio-economics, Life Cycle Assessment
Windpower and Grey Seals: An Impact Assessment of Potential Effects by Sea-Based Windpower Plants on a Local Seal Population Sundberg, J., Söderman, M. December 1999 Report Wind Energy general, Offshore Wind Marine Mammals, Pinnipeds
Establishing an Agenda for Social Studies Research in Marine Renewable Energy Kerr, S., et al. April 2014 Journal Article Marine Energy general, Wind Energy general, Offshore Wind Socio-economics
User Guide for the MRSea Package: Marine Renewables Strategic Environmental Assessment Scott-Hayward, L., et al. October 2013 Report Marine Energy general, Wind Energy general, Offshore Wind Birds, Marine Mammals
Evaluating Offshore Wind Energy Feasibility off the California Central Coast Feinberg, L., et al. March 2014 Report Wind Energy general, Offshore Wind
Compendium of Avian Occurrence Information for the Continental Shelf Waters along the Atlantic Coast of the United States: Final Report (Database Selection - Shorebirds) O'Connell, A., Spiegel, C., Johnson, S. April 2011 Report Wind Energy general, Offshore Wind Birds, Shorebirds
Ocean Zoning for Conservation, Fisheries and Marine Renewable Energy: Assessing Trade-Offs and Co-Location Opportunities Yates, K., Schoeman, D., Klein, C. April 2015 Journal Article Marine Energy general, Wind Energy general, Offshore Wind Socio-economics
Report of the Working Group on Marine Mammal Ecology (WGMME) International Council for the Exploration of the Sea April 2010 Report Wind Energy general, Offshore Wind Marine Mammals, Cetaceans
Attitudes of Scottish Fishers Towards Marine Renewable Energy Alexander, K., Wilding, T., Jacomina Heymans, J. January 2013 Journal Article Marine Energy general, Wind Energy general, Offshore Wind Fish, Socio-economics
Diversity of Demersal and Megafaunal Assemblages Inhabiting Sandbanks of the Irish Sea Atalah, J., et al. June 2013 Journal Article Wind Energy general, Offshore Wind Static Device Benthic Invertebrates, Fish
A Marine Spatial Planning Framework for the Optimal Siting of Marine Renewable Energy Installations: Two Danish Case Studies Azzellino, A., et al. January 2013 Journal Article Marine Energy general, Wind Energy general, Offshore Wind Static Device Socio-economics, Marine Spatial Planning
East Anglia ONE Offshore Windfarm: Environmental Statement Environmental Resource Management November 2012 Report Wind Energy general, Offshore Wind Birds, Socio-economics, Environmental Impact Assessment
Sediment Transport Patterns at Trafalgar Offshore Windfarm Besio, G., Losada, M. May 2008 Journal Article Wind Energy general, Offshore Wind Energy Removal Farfield Environment
Recent Developments of Ocean Environmental Description with Focus on Uncertainties Bitner-Gregersen, E., et al. August 2014 Journal Article Marine Energy general, Wind Energy general, Offshore Wind Nearfield Habitat
Virginia Offshore Wind Technology Advancement Project on the Atlantic Outer Continental Shelf Offshore Virginia Environmental Assessment Bureau of Ocean Energy Management, Office of Renewable Energy Programs December 2014 Report Wind Energy general, Offshore Wind Socio-economics, Environmental Impact Assessment
Response of Offshore Cultivated Laminaria saccharina to Hydrodynamic Forcing in the North Sea Buck, B., Buchholz, C. December 2005 Journal Article Wind Energy general, Offshore Wind Benthic Invertebrates, Nearfield Habitat
Meeting the Quest for Spatial Efficiency: Progress and Prospects of Extensive Aquaculture within Offshore Wind Farms Buck, B., et al. May 2008 Journal Article Wind Energy general, Offshore Wind Benthic Invertebrates, Socio-economics
Inshore-Offshore Comparison of Parasite Infestation in Mytilus edulis: Implications for Open Ocean Aquaculture Buck, B., et al. April 2005 Journal Article Wind Energy general, Offshore Wind Static Device Benthic Invertebrates, Socio-economics

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