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: 1266
Title Author Date Type of Contentsort descending Technology Type Stressor Receptor
Hearing thresholds of a harbor porpoise (Phocoena phocoena) for narrow-band sweeps (0.125-150 kHz) Kastelein, R., et al. July 2015 Report Wind Energy general, Offshore Wind Noise Marine Mammals
Responses of Local Birds to the Offshore Wind Farms PAWP and OWEZ off the Dutch mainland coast Leopold, M., van Bemmelen, R., Zuur, A. October 2013 Report Wind Energy general, Offshore Wind Birds
Assessing The Benefit Of Noise Reduction Measures During Offshore Wind Farm Construction On Harbour Porpoises Verfuss, U., et al. September 2016 Report Wind Energy general, Offshore Wind Noise Marine Mammals, Cetaceans
Collision and Displacement Vulnerability Among Marine Birds of the California Current System Associated with Offshore Wind Energy Infrastructure Adams, J., et al. October 2016 Report Wind Energy general, Offshore Wind Dynamic Device Birds, Seabirds
Review of the Potential Impacts of Offshore Wind Farms on Migrating and Overwintering Swans and Geese in the SEA 5 Area Barton, C., Pollock, C. June 2004 Report Wind Energy general, Offshore Wind Birds, Shorebirds
A Synchronized Sensor Array for Remote Monitoring of Avian and Bat Interactions with Offshore Renewable Energy Facilities Suryan, R., Albertani, R., Polagye, B. July 2016 Report Wind Energy general, Offshore Wind Dynamic Device Bats, Birds
Issuance of Incidental Harassment Authorizations to Deepwater Wind for the Take of Marine Mammals Incidental to Construction of the Block Island Wind Farm and Block Island Transmission System National Marine Fisheries Service August 2014 Report Wind Energy general, Offshore Wind Marine Mammals
Socio-Economic Impact of Outer Continental Shelf Wind Energy Development on Fisheries in the US Atlantic: Volume I - Report Narrative Kirkpatrick, A., et al. January 2017 Report Wind Energy general, Offshore Wind Socio-economics, Fishing
Socio-Economic Impact of Outer Continental Shelf Wind Energy Development on Fisheries in the US Atlantic: Volume II - Appendices Kirkpatrick, A., et al. January 2017 Report Wind Energy general, Offshore Wind Socio-economics, Fishing
An Assessment of the Economic Potential of Offshore Wind in the United States from 2015 to 2030 Beiter, P., et al. March 2017 Report Wind Energy general, Offshore Wind Socio-economics
Use of High Resolution Sonar for Near-Turbine Fish Observations (DIDSON) - WeSea 2007-002 Couperus, B., et al. November 2010 Report Wind Energy general, Offshore Wind Static Device Fish
Navitus Bay Wind Park Technical Appendix 2.1 - EMF Calculations Report Dorey, P. April 2014 Report Wind Energy general, Offshore Wind EMF
Navitus Bay Wind Park Environmental Statement: Non-Technical Summary Navitus Bay Development April 2014 Report Wind Energy general, Offshore Wind
ORECCA European Offshore Renewable Energy Roadmap Jeffrey, H., Sedgwick, J. September 2011 Report Marine Energy general, Tidal, Wave, Wind Energy general, Offshore Wind Socio-economics
Deep Water: The Next Step for Offshore Wind Energy Arapogianni, A., et al. July 2013 Report Wind Energy general, Offshore Wind
Review of Methods and Techniques for Field Validation of Collision Rates and Avoidance Amongst Birds and Bats at Offshore Wind Turbines Dirksen, S. March 2017 Report Wind Energy general, Offshore Wind Dynamic Device Bats, Birds
A Framework for Regulating Underwater Noise During Pile Driving Andersson, M., et al. August 2017 Report Wind Energy general, Offshore Wind Noise Fish, Marine Mammals
Development of a Geographic Information System-Based Decision Support Tool for Evaluating Windfarm Sitings in Great Lakes Aquatic Habitats Wehrly, K., et al. July 2011 Report Wind Energy general, Offshore Wind
D4.17 Report on environmental monitoring protocols Magagna, D., et al. May 2014 Report Marine Energy general, Tidal, Wave, Wind Energy general, Offshore Wind Chemicals, Dynamic Device, Noise, Static Device Benthic Invertebrates, Birds, Seabirds, Fish, Marine Mammals
Observing Cable Laying and Particle Settlement During the Construction of the Block Island Wind Farm James, E., et al. March 2017 Report Wind Energy general, Offshore Wind Static Device
U.S. Job Creation in Offshore Wind: A Report for the Roadmap Project for Multi-State Cooperation on Offshore Wind BVG Associates October 2017 Report Wind Energy general, Offshore Wind Socio-economics
Northeast Offshore Wind Regional Market Characterization: A Report for the Roadmap Project for Multi-State Cooperation on Offshore Wind Grace, R., et al. October 2017 Report Wind Energy general, Offshore Wind Socio-economics
Munitions and Explosives of Concern Survey Methodology and In-Field Testing for Wind Energy Areas on the Atlantic Outer Continental Shelf Carton, G., et al. July 2017 Report Marine Energy general, Offshore Wind
Improving Efficiencies of National Environmental Policy Act Documentation for Offshore Wind Facilities - Case Studies Report English, P., et al. March 2017 Report Wind Energy general, Offshore Wind Socio-economics, Legal and Policy
Evaluating Benefits of Offshore Wind Energy Projects in NEPA AECOM July 2017 Report Wind Energy general, Offshore Wind
Assessing Northern Gannet Avoidance of Offshore Windfarms Rehfisch, M., et al. June 2014 Report Wind Energy general, Offshore Wind Static Device Birds, Seabirds
ORJIP Bird Collision and Avoidance Study Skov, H., et al. April 2018 Report Wind Energy general, Offshore Wind Dynamic Device Birds, Seabirds
Feasibility Study for Meta-Analysis of Red-Throated Diver Displacement Dirksen, S., et al. July 2017 Report Wind Energy general, Offshore Wind Birds, Waterfowl
2018 State of the Sector Report: Marine Renewable Energy in Canada Marine Renewables Canada June 2018 Report Marine Energy general, Riverine, Tidal, Wave, Wind Energy general, Offshore Wind
Burbo Bank Extension Offshore Wind Farm: Environmental Impact Assessment Scoping Report Sørensen, T., et al. July 2010 Report Wind Energy general, Offshore Wind Socio-economics, Environmental Impact Assessment
Burbo Bank Extension Offshore Wind Farm: Red-throated Diver Displacement Ellis, I., Ward, R. September 2013 Report Wind Energy general, Offshore Wind Birds, Waterfowl
East Anglia TWO Offshore Windfarm Scoping Report ScottishPower Renewables November 2017 Report Wind Energy general, Offshore Wind Benthic Invertebrates, Birds, Fish, Marine Mammals, Socio-economics, Environmental Impact Assessment
Report on the Implications for European Sites Proposed Walney Extension Offshore Wind Farm The Planning Inspectorate for England and Wales April 2014 Report Wind Energy general, Offshore Wind
Report on the Implications for European Sites Proposed Burbo Bank Extension Offshore Wind Farm The Planning Inspectorate for England and Wales February 2014 Report Wind Energy general, Offshore Wind
Report on the Implications for European Sites Proposed Dogger Bank Creyke Beck Offshore Wind Farm UK Planning Inspectorate July 2014 Report Wind Energy general, Offshore Wind
Report on the Implications for European Sites Proposed Dogger Bank Teesside A & B Offshore Wind Farm The Planning Inspectorate for England and Wales December 2014 Report Wind Energy general, Offshore Wind
East Anglia ONE North Offshore Windfarm Scoping Report ScottishPower Renewables November 2017 Report Wind Energy general, Offshore Wind Socio-economics, Environmental Impact Assessment
Report on the Implication for European Sites Proposed East Anglia ONE Offshore Windfarm The Planning Inspectorate for England and Wales November 2013 Report Wind Energy general, Offshore Wind
Report on the Implications for European Sites Proposed Hornsea Offshore Wind Farm (Zone 4) - Project One UK Planning Inspectorate March 2014 Report Wind Energy general, Offshore Wind
Report on the Implications for European Sites Proposed Hornsea Offshore Wind Farm (Zone 4) - Project Two The Planning Inspectorate for England and Wales November 2015 Report Wind Energy general, Offshore Wind
Report on the Implications for European Sites Proposed Navitus Bay Wind Park UK Planning Inspectorate February 2015 Report Wind Energy general, Offshore Wind
Norfolk Boreas Offshore Wind Farm Environmental Impact Assessment Scoping Report Royal Haskoning March 2017 Report Wind Energy general, Offshore Wind Socio-economics, Environmental Impact Assessment
Norfolk Vanguard Offshore Wind Farm Environmental Impact Assessment Scoping Report Royal Haskoning October 2016 Report Wind Energy general, Offshore Wind Socio-economics, Environmental Impact Assessment
Thanet Extension Offshore Wind Farm Environmental Impact Assessment Report to Inform Scoping Royal Haskoning December 2016 Report Wind Energy general, Offshore Wind Socio-economics, Environmental Impact Assessment
Triton Knoll Environmental Impact Assessment Scoping Report Wilson, M., Ireland, P. July 2010 Report Wind Energy general, Offshore Wind Socio-economics, Environmental Impact Assessment
Rampion Offshore Wind Farm - Scoping Report RSK Environment September 2010 Report Wind Energy general, Offshore Wind
Kentish Flats Offshore Wind Farm Extension Environmental Scoping Study Royal Haskoning October 2010 Report Wind Energy general, Offshore Wind
Commercial Wind Lease Issuance and Site Characterization Activities on the Atlantic Outer Continental Shelf Offshore New Jersey, Delaware, Maryland, and Virginia Bureau of Ocean Energy Management, Regulation and Enforcement July 2011 Report Wind Energy general, Offshore Wind
Taiwanese white dolphins and offshore wind farms Tougaard, J., Mikaelsen, M. December 2017 Report Wind Energy general, Offshore Wind Noise Marine Mammals, Cetaceans
Cape Wind Submerged Aquatic Vegetation Diver Survey Woods Hole Group, Inc. July 2003 Report Wind Energy general, Offshore Wind Nearfield Habitat
Revised Navigational Risk Assessment ESS Group, Inc. November 2006 Report Wind Energy general, Offshore Wind Socio-economics, Environmental Impact Assessment, Navigation
Tern Observations Near Monomoy Island ESS Group December 2006 Report Wind Energy general, Offshore Wind Birds, Seabirds
Analysis of Effects of Wind Turbine Generator Array for the Alternative Site of the Cape Wind Energy Project Swanson, C., Subbayya, S. August 2006 Report Wind Energy general, Offshore Wind Farfield Environment
Simulation of Sediment Transport and Deposition from Cable Burial Operations for the Alternative Site of the Cape Wind Energy Project Swanson, C., Isaji, T. August 2006 Report Wind Energy general, Offshore Wind Farfield Environment
Submerged Aquatic Vegetation Investigation of the Cape Wind Energy Project ESS Group August 2006 Report Wind Energy general, Offshore Wind Nearfield Habitat
Final Underwater Noise Analysis of Cape Wind Energy Project ESS Group January 2006 Report Wind Energy general, Offshore Wind Noise Fish, Marine Mammals, Reptiles
Long-tailed Duck Report, Winter 2005-2006 ESS Group September 2006 Report Wind Energy general, Offshore Wind Birds, Waterfowl
Fisheries Data Report South of Tuckernuck Area ESS Group September 2006 Report Wind Energy general, Offshore Wind Socio-economics, Fishing
Draft Fisheries Report of Cape Wind Energy Project ESS Group, Battelle September 2006 Report Wind Energy general, Offshore Wind Socio-economics, Fishing
Monitoring of wintering geese in the AES Geo Energy Wind Farm "St. Nikola" territory and the Kaliakra region in winter 2016/2017 Zehtindjiev, P., Whitfield, P. April 2017 Report Land-Based Wind, Offshore Wind Birds, Waterfowl
Collision Risk Model for "rufa" Red Knots (Calidris canutus rufa) Interacting with a Proposed Offshore Wind Energy Facility in Nantucket Sound, Massachusetts Gordon, C., Nations, C. January 2016 Report Wind Energy general, Offshore Wind Birds, Shorebirds
Evaluation of Lighting Schemes for Offshore Wind Facilities and Impacts to Local Environments Orr, T., Herz, S., Oakley, D. August 2013 Report Wind Energy general, Offshore Wind Lighting
Determining Night-Time Distribution of Long-Tailed Ducks Using Satellite Telemetry Allison, T., Perkins, S., Perry, M. March 2009 Report Wind Energy general, Offshore Wind Birds, Waterfowl
National Offshore Wind Strategy: Facilitating the Development of the Offshore Wind Industry in the United States Gilman, P., et al. September 2016 Report Wind Energy general, Offshore Wind
Finding out the Fate of Displaced Birds Searle, K., et al. February 2018 Report Marine Energy general, Wind Energy general, Offshore Wind Birds
Estimating Seabird Flight Height using LiDAR Cook, A., et al. August 2018 Report Wind Energy general, Offshore Wind Birds, Seabirds
Final Environmental Assessment LEEDCo Project Icebreaker Lake Erie, City of Cleveland, Cuyahoga County, Ohio Parker, R., et al. September 2018 Report Wind Energy general, Offshore Wind Socio-economics, Environmental Impact Assessment
Appendix I Aquatic Ecological Resource Characterization and Impact Assessment LimnoTech January 2017 Report Wind Energy general, Offshore Wind Ecosystem, Socio-economics, Environmental Impact Assessment
Appendix J WEST NEXRAD Analysis: Assessment of Nocturnal Bird Migration Activity from Weather Radar Data for the Proposed Icebreaker Wind Energy Facility, Lake Erie, Ohio Nations, C., Gordon, C. January 2017 Report Wind Energy general, Offshore Wind Bats, Birds
Appendix K Tetra Tech Bird Survey Report: Spring - Fall 2010 Avian and Bat Studies Report Lake Erie Wind Power Study Svedlow, A., Gilpatrick, L., McIlvain, D. July 2012 Report Wind Energy general, Offshore Wind Bats, Birds
Appendix L-1 WEST Summary of Risks to Birds and Bats Gordon, C., Erickson, W. November 2016 Report Wind Energy general, Offshore Wind Bats, Birds
Appendix L-2 WEST Bird and Bat Annual Report 2018 Gordon, C., et al. February 2018 Report Wind Energy general, Offshore Wind Bats, Birds
Appendix M-1 Biological Assessment for Project Icebreaker EDR, D.P.C. September 2018 Report Wind Energy general, Offshore Wind Ecosystem
Appendix E-1 LimnoTech Report - Results of 2016 Aquatic Sampling LimnoTech March 2017 Report Wind Energy general, Offshore Wind Benthic Invertebrates, Fish
Appendix E-2 LimnoTech Report - Results of 2017 Aquatic Sampling LimnoTech February 2018 Report Wind Energy general, Offshore Wind Benthic Invertebrates, Fish
Appendix O Summary of Current Information Related to Electromagnetic Field Impacts on Fish and LEEDCo Proposed Transmission Cable Verhamme, E., Daley, J., Peterson, G. June 2016 Report Wind Energy general, Offshore Wind EMF Fish
Modeling At-Sea Occurrence and Abundance of Marine Birds to Support Atlantic Marine Renewable Energy Planning: Phase 1 Report Kinlan, B., et al. May 2016 Report Marine Energy general, Wind Energy general, Offshore Wind Birds, Seabirds
Seabird Distribution and Abundance in the Offshore Environment Final Report Kuletz, K., Labunski, E. February 2017 Report Marine Energy general, Wind Energy general, Offshore Wind Birds, Seabirds
East Anglia THREE: Preliminary Environmental Information Report (PEIR) Royal Haskoning May 2018 Report Wind Energy general, Offshore Wind Socio-economics, Environmental Impact Assessment
Methodologies for measuring and assessing potential changes in marine mammal behaviour, abundance or distribution arising from the construction, operation and decommissioning of offshore windfarms Diederichs, A., et al. June 2008 Report Wind Energy general, Offshore Wind Marine Mammals
Investigations into the effects of pile driving at the offshore wind farm Horns Rev II and the FINO III research platform Brandt, M., Diederichs, A., Nehls, G. July 2009 Report Wind Energy general, Offshore Wind Noise Marine Mammals
Environmental Impacts of Offshore Wind Farms in the Belgian Part of the North Sea: Assessing and Managing Effect Spheres of Influence Degraer, S., et al. January 2018 Report Wind Energy general, Offshore Wind
Wind Farm - Kriegers Flak: Environmental Impact Assessment Sweden Offshore Wind AB January 2007 Report Offshore Wind Socio-economics, Environmental Impact Assessment
Marine Mammals - Investigations and preparation of environmental impact assessment for Kriegers Flak Offshore Wind Farm Dietz, R., et al. June 2015 Report Offshore Wind Marine Mammals, Socio-economics, Environmental Impact Assessment
Effects of larger turbines for the offshore wind farm at Krieger's Flak, Sweden. Assessment of impact on marine mammals Tougaard, J., Mikaelsen, M. October 2018 Report Wind Energy general, Offshore Wind Noise Marine Mammals, Cetaceans, Pinnipeds
Disturbance Effects on the Harbour Porpoise Population in the North Sea (DEPONS): Status report on model development van Beest, F., et al. February 2015 Report Offshore Wind Noise Marine Mammals
Bird and Bat Collision Risks & Wind Energy Facilities Willmott, J., et al. December 2012 Report Wind Energy general, Land-Based Wind, Offshore Wind Dynamic Device, Static Device Bats, Birds
The Effect of Simulated Seal Scarer Sounds on Harbour Porpoises Hermannsen, L., Mikkelsen, L., Tougaard, J. January 2017 Report Offshore Wind Noise Marine Mammals, Cetaceans, Pinnipeds
First year post-construction monitoring of bats and birds at Wind Turbine Test Centre Østerild Therkildsen, O., Elmeros, M. January 2015 Report Offshore Wind Dynamic Device Bats, Birds
Habitat Mapping and Assessment of Northeast Wind Energy Areas Guida, V., et al. December 2017 Report Offshore Wind Benthic Invertebrates, Ecosystem, Fish
Offshore Wind Energy Development Site Assessment and Characterization: Evaluation of the Current Status and European Experience Rein, C., et al. August 2013 Report Wind Energy general, Offshore Wind Socio-economics, Stakeholder Engagement
The Avoidance Rates of Collision Between Birds and Offshore Turbines Cook, A., et al. December 2014 Report Wind Energy general, Offshore Wind Dynamic Device Birds, Seabirds
Wind Farms and Birds: An Updated Analysis of the Effects of Wind Farms on Birds, and Best Practice Guidance on Integrated Planning and Impact Assessment Gove, B., et al. September 2013 Report Wind Energy general, Land-Based Wind, Offshore Wind Birds
Assessment of Displacement Impacts of Offshore Windfarms and Other Human Activities on Red-Throated Divers and Alcids McGovern, S., Goddard, B., Rehfisch, M. December 2016 Report Wind Energy general, Offshore Wind Birds
The Development of Ocean Test Beds for Ocean Technology Adaptation and Integration into the Emerging U.S. Offshore Wind Energy Industry Kirincich, A., et al. May 2018 Report Wind Energy general, Offshore Wind
Population Consequences of Displacement from Proposed Offshore Wind Energy Developments for Seabirds Breeding at Scottish SPAs Searle, K., et al. May 2014 Report Wind Energy general, Offshore Wind Static Device Birds, Seabirds
Population Sizes of Seabirds breeding in Scottish Special Protection Areas Lewis, M., et al. July 2012 Report Marine Energy general, Tidal, Wave, Wind Energy general, Offshore Wind Birds, Seabirds
Population Trends of Breeding Seabird Colonies in Scottish SPAs Malcolm, F., Lye, G., Lewis, M. July 2012 Report Marine Energy general, Tidal, Wave, Wind Energy general, Offshore Wind Birds, Seabirds
The potential influence of Robin Rigg Wind Farm on the abundance of adult and juvenile Atlantic salmon Thorley, J. February 2013 Report Wind Energy general, Offshore Wind Fish
Request for advice about the displacement of marine mammals around operational offshore windfarms Alcock, P. October 2012 Report Wind Energy general, Offshore Wind Noise Marine Mammals, Cetaceans

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