Tidal

Capturing tidal fluctuations with turbines, tidal barrages, or tidal lagoons.

Tidal Turbines

Land constrictions such as straits or inlets can create high velocities at specific sites, which can be captured with the use of turbines. These turbines can be horizontal, vertical, open, or ducted and are typically placed near the bottom of the water column.

 

The main environmental concern with tidal energy is associated with blade strike and entanglement of marine organisms as high speed water increases the risk of organisms being pushed near or through these devices. As with all offshore renewable energies, there is also a concern about how the creation of EMF and acoustic outputs may affect marine organisms. It should be noted that because these devices are in the water, the acoustic output can be greater than those created with offshore wind energy. Depending on the frequency and amplitude of sound generated by the tidal energy devices, this acoustic output can have varying effects on marine mammals (particularly those who echolocate to communicate and navigate in the marine environment such as dolphins and whales). Tidal energy removal can also cause environmental concerns such as degrading farfield water quality and disrupting sediment processes. Depending on the size of the project, these effects can range from small traces of sediment build up near the tidal device to severely affecting nearshore ecosystems and processes.

Tidal Barrage

Tidal barrages are dams built across the entrance to a bay or estuary that captures potential tidal energy with turbines similar to a conventional hydrokinetic dam. Energy is collected while the height difference on either side of the dam is greatest, at low or high tide. A minimum height fluctuation of 5 meters is required to justify the construction, so only 40 locations worldwide have been identified as feasible.

 

Installing a barrage may change the shoreline within the bay or estuary, affecting a large ecosystem that depends on tidal flats. Inhibiting the flow of water in and out of the bay, there may also be less flushing of the bay or estuary, causing additional turbidity (suspended solids) and less saltwater, which may result in the death of fish that act as a vital food source to birds and mammals. Migrating fish may also be unable to access breeding streams, and may attempt to pass through the turbines. The same acoustic concerns apply to tidal barrages. Decreasing shipping accessibility can become a socio-economic issue, though locks can be added to allow slow passage. However, the barrage may improve the local economy by increasing land access as a bridge. Calmer waters may also allow better recreation in the bay or estuary.

Tidal Lagoon

A newer tidal energy design option is to construct circular retaining walls embedded with turbines that can capture the potential energy of tides. The created reservoirs are similar to those of tidal barrages, except that the location is artificial and does not contain a preexisting ecosystem.

 

Environmentally, the main concerns are blade strike on fish attempting to enter the lagoon, acoustic output from turbines, and changes in sedimentation processes. However, all these effects are localized and do not affect the entire estuary or bay.

Total Results: 100
Title Author Research Start Datesort ascending Type of Content Technology Type Stressor Receptor
Estimating the Probability of Fish Encountering a Marine Hydrokinetic Device Shen, H., et al. November 2016 Journal Article Tidal Fish
Scottish Government Demonstration Strategy: Trialling Methods for Tracking the Fine Scale Underwater Movements of Marine Mammals in Areas of Marine Renewable Energy Development Scottish Marine and Freshwater Science Sparling, C., et al. June 2016 Report Marine Energy general, Tidal Dynamic Device, Noise, Static Device Marine Mammals
Potential Environmental Impact of Tidal Energy Extraction in the Pentland Firth at Large Spatial Scales: Results of a Biogeochemical Model van der Molen, J., Ruardij, P., Greenwood, N. May 2016 Journal Article Tidal Energy Removal Farfield Environment
Current tidal power technologies and their suitability for applications in coastal and marine areas Roberts, A., et al. May 2016 Journal Article Tidal Ecosystem, Socio-economics
Assessing collision risk between underwater turbines and marine wildlife Scottish Natural Heritage May 2016 Report Tidal Dynamic Device
Wave and Tidal Current Energy - A Review of the Current State of Research Beyond Technology Uihlein, A., Magagna, D. May 2016 Journal Article Tidal, Wave
Integrating a Multibeam and a Multifrequency Echosounder on the Flowbec Seabed Platform to Track Fish and Seabird Behavior around Tidal Turbine Structures Williamson, B., et al. April 2016 Conference Paper Tidal Seabirds, Fish
A World First: Swansea Bay Tidal Lagoon in Review Waters, S., Aggidis, G. April 2016 Journal Article Tidal
Quantifying pursuit-diving seabirds' associations with fine-scale physical features in tidal stream environments Waggitt, J., et al. March 2016 Journal Article Tidal Seabirds
Seal Telemetry Inventory Sparling, C. March 2016 Report Tidal Marine Mammals
Harbor Seal - Tidal Turbine Collision Risk Models. An Assessment of Sensitivities. Wood, J., Joy, R., Sparling, C. March 2016 Report Tidal Marine Mammals
Environmental Monitoring of the Paimpol-Brehat Tidal Project Barillier, A., Carlier, A. February 2016 Presentation Tidal Noise, Static Device Benthic Invertebrates, Marine Mammals
What Should a Condition Monitoring System Look like for a Tidal Turbine? Marnoch, J. February 2016 Presentation Tidal
Measurement of Underwater Operational Noise Emitted by Wave and Tidal Stream Energy Devices Lepper, P., Robinson, S. January 2016 Book Chapter Tidal, Wave Noise
Effects of Underwater Turbine Noise on Crab Larval Metamorphosis Pine, M., Jeffs, A., Radford, C. January 2016 Book Chapter Tidal Noise Benthic Invertebrates
A Self-Contained Subsea Platform for Acoustic Monitoring of the Environment Around Marine Renewable Energy Devices - Field Deployments at Wave and Tidal Energy Sites in Orkney, Scotland Williamson, B., et al. January 2016 Journal Article Tidal, Wave Dynamic Device, Static Device Birds, Fish, Marine Mammals
A Scenario-Based Approach to Evaluating Potential Environmental Impacts Following a Tidal Barrage Installation Kidd, I., et al. November 2015 Journal Article Tidal Energy Removal Ecosystem
NERC Knowledge Exchange: An Autonomous Device to Track Porpoise Movements in Tidal Rapids Macaulay, J., et al. November 2015 Report Tidal Marine Mammals
Evaluation and Comparison of the Levelized Cost of Tidal, Wave, and Offshore Wind Energy Astariz, S., Vazquez, A., Iglesias, G. October 2015 Journal Article Wave, Tidal, Offshore Wind Socio-economics
Hydrodynamic Response to Large Scale Tidal Energy Extraction Brown, A., Neill, S. September 2015 Conference Paper Tidal Energy Removal Farfield Environment
Field Testing a Full-Scale Tidal Turbine Part 2: In-Line Wake Effects Schmitt, P., et al. September 2015 Conference Paper Tidal
Field Testing a Full-Scale Tidal Turbine Part 3: Acoustic Characteristics Schmitt, P., et al. September 2015 Conference Paper Tidal Noise
Numerical Modeling of the Impact Response of Tidal Devices and Marine Mammals Grear, M., Motley, M. September 2015 Conference Paper Tidal Marine Mammals
Remote Detection of Sea Surface Roughness Signatures Related to Subsurface Bathymetry, Structures and Tidal Stream Turbine Wakes Bell, P., et al. September 2015 Conference Paper Tidal
Sediment Transport in the Pentland Firth and Impacts of Tidal Stream Energy Extraction Fairley, I., Masters, I., Karunarathna, H. September 2015 Conference Paper Tidal Energy Removal
Impact of Scaled Tidal Stream Turbine over Mobile Sediment Beds Ramírez-Mendoza, R., et al. September 2015 Conference Paper Tidal Energy Removal
Towards Acoustic Monitoring of Marine Mammals at a Tidal Turbine Site: Grand Passage, NS, Canada Malinka, C., Hay, A., Cheel, R. September 2015 Conference Paper Tidal Marine Mammals
An Integrated Solution to Real Time Marine Mammal Monitoring for Tidal Turbines Bromley, P., Boake, C., Broudic, M. September 2015 Conference Paper Tidal Static Device Marine Mammals
Surveying Marine Mammals in Nearby Tidal Energy Development Sites: a Comparison Benjamins, S., et al. September 2015 Conference Paper Tidal Static Device Farfield Environment, Marine Mammals
Confusion Reigns? A Review of Marine Megafauna Interactions with Tidal-Stream Environments Benjamins, S., et al. August 2015 Book Chapter Tidal Birds, Marine Mammals
The Cumulative Impact of Tidal Stream Turbine Arrays on Sediment Transport in the Pentland Firth Fairley, I., Masters, I., Karunarathna, H. August 2015 Journal Article Tidal Energy Removal Farfield Environment
Assessing Collision Risk between Tidal Turbines and Marine Wildlife (draft) Band, W. August 2015 Report Tidal Dynamic Device
TeraWatt Position Papers: A "Toolbox" of Methods to Better Understand and Assess the Effects of Tidal and Wave Energy Arrays on the Marine Environment Murray, R., et al. August 2015 Book Tidal, Wave Energy Removal Farfield Environment, Nearfield Habitat
A Comparison of Numerical Modelling Techniques for Tidal Stream Turbine Analysis Masters, I., et al. July 2015 Journal Article Tidal
Guidance to Inform Marine Mammal Site Characterisation Requirements at Wave and Tidal Stream Energy Sites in Wales Sparling, C., et al. July 2015 Report Wave, Tidal Marine Mammals
High-Resolution Velocimetry in Energetic Tidal Currents using a Convergent-Beam Acoustic Doppler Profiler Sellar, B., Harding, S., Richmond, M. July 2015 Journal Article Tidal Energy Removal
Improving Assessments of Tidal Power Potential using Grid Refinement in the Coupled Ocean-Atmosphere-Wave-Sediment Transport Model Yang, X., Haas, K. July 2015 Journal Article Tidal Energy Removal
Hydrokinetic Turbine Models in Complex Channel Topography: Local Scour, Sediment Transport and Device Performance Hill, C., et al. July 2015 Conference Paper Tidal Energy Removal
MR7.2.1 Collision Risk: A Brief Review of Available Information on Behaviour of Mammals and Birds in High Tidal Energy Areas Onoufriou, J., Thompson, D. July 2015 Report Tidal Dynamic Device Birds, Marine Mammals
MR7.2.2 Collision Risk and Impact Study: Examination of Models for Estimating the Risk of Collisions Between Seals and Tidal Turbines Lonergan, M., Thompson, D. July 2015 Report Tidal Dynamic Device Marine Mammals
MR7.2.3 Collision Risk and Impact Study: Field Tests of Turbine Blade-Seal Carcass Collisions Thompson, D., et al. July 2015 Report Tidal Dynamic Device Marine Mammals
Modelling the Response of Sandbank Dynamics to Tidal Energy Extraction Chatzirodou, A., Karunarathna, H., Reeve, D. June 2015 Conference Paper Tidal Energy Removal
OCGen Module Mooring Design Marnagh, C., et al. April 2015 Conference Paper Tidal
Advancing a Key Consenting Risk for Tidal Energy: The Risk of Marine Mammal Collision for In-Stream Tidal Energy Devices Booth, C., et al. April 2015 Conference Paper Tidal Dynamic Device Marine Mammals
Understanding the Risk to Marine Mammals from Collision with a Tidal Turbine Copping, A., et al. April 2015 Conference Paper Tidal Dynamic Device Marine Mammals
Improvements to Probabilistic Tidal Turbine-Fish Interaction Model Parameters Tomechik, C., Colby, J., Adonizio, M. April 2015 Conference Paper Tidal Dynamic Device Fish
Tidal Resource Extraction in the Pentland Firth, UK: Potential Impacts on Flow Regime and Sediment Transport in the Inner Sound of Stroma Martin-Short, R., et al. April 2015 Journal Article Tidal Energy Removal Farfield Environment
Proceedings of the 4th Oxford Tidal Energy Workshop University of Oxford March 2015 Workshop Article Tidal
Attitudes towards Marine Energy: Understanding the Values de Groot, J. March 2015 Thesis Tidal, Wave, Offshore Wind Socio-economics
Public Perceptions and Externalities in Tidal Stream Energy: A Valuation for Policy Making Vazquez, A., Iglesias, G. March 2015 Journal Article Tidal Socio-economics
Numerical Modeling of the Effect of Tidal Stream Turbines on the Hydrodynamics and the Sediment Transport - Application to the Alderney Race (Raz Blanchard), France Thiébot, J., de Bois, P., Guillou, S. March 2015 Journal Article Tidal Energy Removal Farfield Environment
Evaluation of Behavior and Survival of Fish Exposed to an Axial-Flow Hydrokinetic Turbine Amaral, S., et al. February 2015 Journal Article Tidal Dynamic Device Fish
Using Hydroacoustics to Understand Fish Presence and Vertical Distribution in a Tidally Dynamic Region Targeted for Energy Extraction Viehman, H., et al. January 2015 Journal Article Tidal Fish
Examining the Impacts of Tidal Energy Capture from an Ecosystem Services Perspective Leslie, H., Palmer, M. January 2015 Journal Article Tidal Ecosystem
Tidal Power Development in Maine: Stakeholder Identification and Perceptions of Engagement Johnson, T., Jansujwicz, J., Zydlewski, G. January 2015 Journal Article Tidal Socio-economics
Fish Interactions with a Commercial-Scale Tidal Energy Device in the Natural Environment Viehman, H., Zydlewski, G. January 2015 Journal Article Tidal Fish
The Maine Tidal Power Initiative: Transdisciplinary Sustainability Science Research for the Responsible Development of Tidal Power Jansujwicz, J., Johnson, T. January 2015 Journal Article Tidal Socio-economics
Understanding and Informing Permitting Decisions for Tidal Energy Development Using an Adaptive Management Framework Jansujwicz, J., Johnson, T. January 2015 Journal Article Tidal Socio-economics
Environmental Risk Evaluation System - An Approach to Ranking Risk of Ocean Energy Development on Coastal and Estuarine Environments Copping, A., et al. January 2015 Journal Article Tidal, Wave, Offshore Wind Chemicals, Dynamic Device, Energy Removal Birds, Fish, Marine Mammals
Assessing Marine Mammal Presence in and Near the FORCE Lease Area During Winter and Early Spring - Addressing Baseline Data Gaps and Sensor Performance Redden, A., Porskamp, P. January 2015 Report Tidal Marine Mammals
A Modeling Study of the Potential Water Quality Impacts from In-Stream Tidal Energy Extraction Wang, T., Yang, Z., Copping, A. January 2015 Journal Article Tidal Energy Removal Nearfield Habitat
Hydrodynamic Interactions of a Tidal Stream Turbine and Support Structure Walker, S. December 2014 Thesis Tidal Energy Removal
Impact of Tidal-Stream Arrays in Relation to the Natural Variability of Sedimentary Processes Robins, P., Neill, S., Lewis, M. December 2014 Journal Article Tidal Energy Removal Farfield Environment
An Evaluation of the Use of Shore-Based Surveys for Estimating Spatial Overlap between Deep-Diving Seabirds and Tidal Stream Turbines Waggitt, J., Bell, P., Scott, B. December 2014 Journal Article Tidal Birds
Detecting Potential and Actual Turbine-Marine Life Interactions: A Call for the Development of Best Practices Redden, A. November 2014 Presentation Tidal Dynamic Device, Static Device Fish, Marine Mammals
Estimates of Collision Risk of Harbour Porpoises and Marine Renewable Energy Devices at Sites of High Tidal-Stream Energy Wilson, B., et al. November 2014 Report Tidal Dynamic Device Marine Mammals
GHYDRO: Methodology Guide for Assessment of Environmental Impacts of Tidal Stream Energy Technologies at Sea Lejart, M. November 2014 Presentation Tidal Legal and Policy
Assessing the Influence of Inflow Turbulence on Noise and Performance of a Tidal Turbine using Large Eddy Simulations Lloyd, T., Turnock, S., Humphrey, V. November 2014 Journal Article Tidal Noise
Simulating Blade-Strike on Fish Passing Through Marine Hydrokinetic Turbines Romero-Gomez, P., Richmond, M. November 2014 Journal Article Riverine, Tidal Dynamic Device Fish
Insights from Archaeological Analysis and Interpretation of Marine Data Sets to Inform Marine Cultural Heritage Management and Planning of Wave and Tidal Energy Development for Orkney Waters and the Pentland Firth, NE Scotland Pollard, E., et al. October 2014 Journal Article Tidal, Wave Socio-economics
In-Situ Ecological Interactions with a Deployed Tidal Energy Device; An Observational Pilot Study Broadhurst, M., Barr, S., Orme, D. October 2014 Journal Article Tidal Static Device Fish
Modelling the Far Field Hydro-Environmental Impacts of Tidal Farms - A Focus on Tidal Regime, Intertidal Zones and Flushing Nash, S., et al. October 2014 Journal Article Tidal Farfield Environment
Modeling of In-Stream Tidal Energy Development and its Potential Effects in Tacoma Narrows Washington USA Yang, Z., et al. October 2014 Journal Article Tidal Energy Removal Nearfield Habitat
Spatial and Temporal Benthic Species Assemblage Responses with a Deployed Marine Tidal Energy Device: A Small Scaled Study Broadhurst, M., Orme, C. August 2014 Journal Article Tidal Benthic Invertebrates, Ecosystem
Experimental Study of the Turbulence Intensity Effects on Marine Current Turbines Behaviour. Part II: Two Interacting Turbines Mycek, P., et al. August 2014 Journal Article Tidal Energy Removal Nearfield Habitat
The Effects of a Severn Barrage on Wave Conditions in the Bristol Channel Fairley, I., et al. August 2014 Journal Article Tidal Energy Removal Farfield Environment
EMEC Fall of Warness Test Site: Environmental Appraisal European Marine Energy Centre August 2014 Report Tidal Benthic Invertebrates, Birds, Fish, Marine Mammals
Influence of Site Bathymetry on Tidal Resource Assessment Perez-Ortiz, A., et al. August 2014 Conference Paper Tidal
Floating Vs. Bottom-Fixed Turbines for Tidal Stream Energy: A Comparative Impact Assessment Sanchez, M., et al. August 2014 Journal Article Tidal
Flocculation and Sediment Deposition in a Hypertidal Creek O'Laughlin, C., van Proosdij, D., Milligan, T. July 2014 Journal Article Tidal Energy Removal
Minas Passage Lobster Tracking Study 2011-2013 Morrison, K., Broome, J., Redden, A. July 2014 Report Tidal Benthic Invertebrates
Temporal Patterns in Minas Basin Intertidal Weir Fish Catches and Presence of Harbour Porpoise during April - August 2013 Baker, M., Reed, M., Redden, A. July 2014 Report Tidal Marine Mammals
Impacts of Tidal Energy Extraction on Sea Bed Morphology Chatzirodou, A., Karunarathna, H. June 2014 Conference Paper Tidal Energy Removal
Whale To Turbine Impact Using The GPU Based SPH-LSM Method Longshaw, S., Stansby, P., Rogers, B. June 2014 Conference Paper Tidal Dynamic Device Marine Mammals
Experimental Study of the Turbulence Intensity Effects on Marine Current Turbines Behaviour. Part I: One Single Turbine Mycek, P., et al. June 2014 Journal Article Tidal Energy Removal Nearfield Habitat
Energy of Marine Currents in the Strait of Gibraltar and its Potential as a Renewable Energy Resource Quesada, M., et al. June 2014 Journal Article Tidal
A Review of the Potential Impacts of Wave and Tidal Energy Development on Scotland's Marine Environment Aquatera Ltd June 2014 Report Tidal, Wave Nearfield Habitat
Tidal Energy, Underwater Noise and Marine Mammals Carter, C., Wilson, B., Burrows, M. May 2014 Presentation Tidal Noise Marine Mammals
Tracking Porpoise Underwater Movements in Tidal Rapids using Drifting Hydrophone Arrays. Filling a Key Information Gap for Assessing Collision Risk Gordon, J., et al. May 2014 Presentation Tidal Marine Mammals
Movement Patterns of Seals in Tidally Energetic Sites: Implications for Renewable Energy Development Hastie, G., et al. May 2014 Presentation Tidal Marine Mammals
Marine Mammals and Tidal Turbines: Understanding True Collision Risk Sparling, C., et al. May 2014 Presentation Tidal Dynamic Device Marine Mammals
Monitoring Benthic Habitats and Biodiversity at the Tidal Energy Site of Paimpol-Brehat (Brittany, France) Carlier, A., et al. May 2014 Presentation Tidal Benthic Invertebrates
A Review of Marine Bird Diving Behaviour: Assessing Underwater Collision Risk with Tidal Turbines Robbins, A., et al. May 2014 Presentation Tidal Dynamic Device Seabirds
Better Together: The Implications of Tidal Resource Interactions from Resource Calculation to Policy and Governance Woolf, D., Easton, M. May 2014 Presentation Tidal Legal and Policy
Impacts of Tidal-Stream Energy Converter (TEC) Arrays in Relation to the Natural Variability of Sedimentary Processes Robins, P., Neill, S., Lewis, M. May 2014 Presentation Tidal Energy Removal
The Modelling of Tidal Turbine Farms using Multi-Scale, Unstructured Mesh Models Kramer, S., et al. May 2014 Presentation Tidal
The Role of Tidal Asymmetry in Characterising the Tidal Energy Resource of Orkney Neill, S., Hasemi, M., Lewis, M. May 2014 Presentation Tidal
Use of Animal Tracking Technology to Assess Potential Risks of Tidal Turbine Interactions with Fish Redden, A., et al. May 2014 Presentation Tidal Fish
Advances in Research to Understand the Impacts of Wave and Tidal Energy Devices in the United States Brown-Saracino, J. May 2014 Presentation Tidal, Wave
Marine Radar Derived Current Vector Mapping at a Planned Commercial Tidal Stream Turbine Array in the Pentland Firth Bell, P., et al. May 2014 Presentation Tidal
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