Vertical-Axis Tidal-Current Generators and the Pentland Firth
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Collision Risk of Fish with Wave and Tidal Devices
Commissioned by RPS Group plc on behalf of the Welsh Assembly Government Collision Risk of Fish with Wave and Tidal Devices Date: July 2010 Project Ref: R/3836/01 Report No: R.1516 Commissioned by RPS Group plc on behalf of the Welsh Assembly Government Collision Risk of Fish with Wave and Tidal Devices Date: July 2010 Project Ref: R/3836/01 Report No: R.1516 © ABP Marine Environmental Research Ltd Version Details of Change Authorised By Date 1 Pre-Draft A J Pearson 06.03.09 2 Draft A J Pearson 01.05.09 3 Final C A Roberts 28.08.09 4 Final A J Pearson 17.12.09 5 Final C A Roberts 27.07.10 Document Authorisation Signature Date Project Manager: A J Pearson Quality Manager: C R Scott Project Director: S C Hull ABP Marine Environmental Research Ltd Suite B, Waterside House Town Quay Tel: +44(0)23 8071 1840 SOUTHAMPTON Fax: +44(0)23 8071 1841 Hampshire Web: www.abpmer.co.uk SO14 2AQ Email: [email protected] Collision Risk of Fish with Wave and Tidal Devices Summary The Marine Renewable Energy Strategic Framework for Wales (MRESF) is seeking to provide for the sustainable development of marine renewable energy in Welsh waters. As one of the recommendations from the Stage 1 study, a requirement for further evaluation of fish collision risk with wave and tidal stream energy devices was identified. This report seeks to provide an objective assessment of the potential for fish to collide with wave or tidal devices, including a review of existing impact prediction and monitoring data where available. -
Hybrid Neural Fuzzy Design-Based Rotational Speed Control of a Tidal Stream Generator Plant
sustainability Article Hybrid Neural Fuzzy Design-Based Rotational Speed Control of a Tidal Stream Generator Plant Khaoula Ghefiri 1,2,* , Izaskun Garrido 2 , Soufiene Bouallègue 1, Joseph Haggège 1 and Aitor J. Garrido 2 1 Laboratory of Research in Automatic Control—LA.R.A, National Engineering School of Tunis (ENIT), University of Tunis El Manar, BP 37, Le Belvédère, 1002 Tunis, Tunisia; soufi[email protected] (S.B.); [email protected] (J.H.) 2 Automatic Control Group—ACG, Department of Automatic Control and Systems Engineering, Engineering School of Bilbao, University of the Basque Country, 48012 Bilbao, Spain; [email protected] (I.G.); [email protected] (A.J.G.) * Correspondence: kghefi[email protected]; Tel.: +34-94-601-4443 Received: 20 August 2018; Accepted: 12 October 2018; Published: 17 October 2018 Abstract: Artificial Intelligence techniques have shown outstanding results for solving many tasks in a wide variety of research areas. Its excellent capabilities for the purpose of robust pattern recognition which make them suitable for many complex renewable energy systems. In this context, the Simulation of Tidal Turbine in a Digital Environment seeks to make the tidal turbines competitive by driving up the extracted power associated with an adequate control. An increment in power extraction can only be archived by improved understanding of the behaviors of key components of the turbine power-train (blades, pitch-control, bearings, seals, gearboxes, generators and power-electronics). Whilst many of these components are used in wind turbines, the loading regime for a tidal turbine is quite different. This article presents a novel hybrid Neural Fuzzy design to control turbine power-trains with the objective of accurately deriving and improving the generated power. -
Tidal Power: an Effective Method of Generating Power
International Journal of Scientific & Engineering Research Volume 2, Issue 5, May-2011 1 ISSN 2229-5518 Tidal Power: An Effective Method of Generating Power Shaikh Md. Rubayiat Tousif, Shaiyek Md. Buland Taslim Abstract—This article is about tidal power. It describes tidal power and the various methods of utilizing tidal power to generate electricity. It briefly discusses each method and provides details of calculating tidal power generation and energy most effectively. The paper also focuses on the potential this method of generating electricity has and why this could be a common way of producing electricity in the near future. Index Terms — dynamic tidal power, tidal power, tidal barrage, tidal steam generator. —————————— —————————— 1 INTRODUCTION IDAL power, also called tidal energy, is a form of ly or indirectly from the Sun, including fossil fuels, con- Thydropower that converts the energy of tides into ventional hydroelectric, wind, biofuels, wave power and electricity or other useful forms of power. The first solar. Nuclear energy makes use of Earth's mineral depo- large-scale tidal power plant (the Rance Tidal Power Sta- sits of fissile elements, while geothermal power uses the tion) started operation in 1966. Earth's internal heat which comes from a combination of Although not yet widely used, tidal power has poten- residual heat from planetary accretion (about 20%) and tial for future electricity generation. Tides are more pre- heat produced through radioactive decay (80%). dictable than wind energy and solar power. Among Tidal energy is extracted from the relative motion of sources of renewable energy, tidal power has traditionally large bodies of water. -
Bretagne Ocean Power
TEAM UP WITH BRETAGNE TO DEVELOP MARINE RENEWABLES MREs IN BRITTANY / PILOT FARMS / COMMERCIAL FARMS TIDAL CURRENT TURBINE A commercial farm is a production site that EDF, Naval Energies-OpenHydro delivers the generated power to the electricity grid. / Tidal energy / Goal: test the feasibility of high-performance (Rance Tidal Power Plant, operated by EDF). marine current turbines (including technical, economic, environmental / Wind energy and administrative aspects). (offshore wind farm located off St. Brieuc, operated by the Ailes Marines consortium). / Project developers and technology employed: The prototypes of the EDF marine current turbines were designed by Naval Energies/ Openhydro/CMN/Hydroquest. / DEMONSTRATORS / Size & siting: Farm with 4 turbines. ND Rotor diameter: 16 m. Water depth: 35 m 2 GENERATION TIDAL TURBINE / MegaWattBlue / Output power: 2 MW at 2.5 m/s / Goal: construct, install and qualify an industrial demonstrator. / Overall cost: ca. €40 m (including €7.2 m in public funds) / Project developers: Guinard Energies (partners: Bernard Bonnefond, ENSTA FLOATING WIND TURBINE Bretagne, IFREMER, etc.). Eolfi Offshore France, Naval Energies / Technology employed: High-output ducted tidal turbine (doubles the power output), self-orients / Goal: set up a pilot farm with 4 turbines in the direction of the tidal stream; low weight-to- to deliver 24 MW. power output ratio and compactness making it / Project developers: Eolifi Offshore France, efficient even in shallow waters (10 to 12 m depth), CGN Europe Energy, Naval Energies, GE, floating base that can be immersed and retrieved VINCI, VALEMO using ballast tanks (limiting operating costs). / R&D Centres: IFREMER, ENSTA Bretagne, / Size: height on the seabed, 8 m. -
Tidal & Current Energy Resources in Ireland
Tidal & Current Energy Resources in Ireland CONTENTS EXECUTIVE SUMMARY 3 1.0 INTRODUCTION 14 1.1 Strategic Targets 15 1.2 Electricity Consumption 15 1.3 Report Format 16 2.0 THEORETICAL RESOURCE 19 2.1 Tidal Regime 19 2.2 Sources of Tidal Stream Data 20 2.3 Computational Models 21 2.4 Model Verification 22 2.5 Hydraulic Constraints 22 2.6 Theoretical Power 23 2.7 Device Spacing 24 2.8 Theoretical Resource Evaluation 25 2.9 Summary 25 3.0 TECHNICAL RESOURCE 32 3.1 Summary of Existing Technology 32 3.1.1 Rotational Machines – Horizontal AxisTurbines – ‘Free Stream’ 33 3.1.2 Rotational Machines – Horizontal Axis Turbines – Shrouded 36 3.1.3 Rotational Machines – Vertical Axis– ‘Free Stream’ 36 3.1.4 Rotational Machines – Vertical Axis – Shrouded 38 3.1.5 Reciprocating machines 39 3.1.6 Future Research 40 3.2 Foundations 40 3.3 Tidal Stream Farm Electrical Systems 42 3.4 Technical Resource Evaluation 44 3.5 Summary 45 1 4.0 PRACTICAL RESOURCE 50 4.1 Construction and Physical Constraints 50 4.1.1 Water Depth 50 4.1.2 Wave Climate of Offshore Site 50 4.1.3 Geotechnical Stability for Sub-Base Structures 51 4.1.4 Defined Area Restrictions 51 4.2 Practical Resource Evaluation 53 4.3 Summary 54 5.0 ACCESSIBLE RESOURCE 60 5.1 Environmental Issues 60 5.1.1 Characteristics of Tidal Energy Devices 60 5.1.2 Scoping of Environmental Issues 61 5.2 Statutory Permissions and Planning Legislation 64 5.2.1 Republic of Ireland Legislation 64 5.2.2 Coastal Developments 64 5.2.3 Environmental Impact Assessment 65 5.2.4 National Monuments Act 1930-94 65 5.2.5 -
Report of the Study Group on Environmental Impacts of Wave and Tidal Energy (SGWTE)
ICES SGWTE REPORT 2012 SCICOM STEERING GROUP ON HUMAN INTERACTIONS ON ECOSYSTEMS ICES CM 2012/SSGHIE:14 REF. SCICOM Report of the Study Group on Environmental Impacts of Wave and Tidal Energy (SGWTE) 4-6 May 2012 Stromness, Orkney, UK International Council for the Exploration of the Sea Conseil International pour l’Exploration de la Mer H. C. Andersens Boulevard 44–46 DK-1553 Copenhagen V Denmark Telephone (+45) 33 38 67 00 Telefax (+45) 33 93 42 15 www.ices.dk [email protected] Recommended format for purposes of citation: ICES. 2012. Report of the Study Group on Environmental Impacts of Wave and Tidal Energy (SGWTE), 4-6 May 2012, Stromness, Orkney, UK. ICES CM 2012/SSGHIE:14. 190 pp. For permission to reproduce material from this publication, please apply to the Gen- eral Secretary. The document is a report of an Expert Group under the auspices of the International Council for the Exploration of the Sea and does not necessarily represent the views of the Council. © 2012 International Council for the Exploration of the Sea ICES SGWTE REPORT 2012 | i Contents Executive Summary ............................................................................................................... 1 1 Opening of the meeting ................................................................................................ 2 2 Terms of Reference ........................................................................................................ 2 3 Country reports (ToR a, b,d,e) .................................................................................... -
Strategic Tidal Stream Assessment for Alderney
Add pictures from visit to Alderney Strategic Tidal Stream Assessment for Alderney Report to Alderney Commission for Renewable Energy ED 43120001 FINAL Title Strategic Tidal Stream Assessment for Alderney Customer Alderney Commission for Renewable Energy Confidentiality, Copyright AEA Technology plc copyright and reproduction This report is submitted by AEA to the Alderney Commission for Renewable Energy. It may not be used for any other purposes, reproduced in whole or in part, nor passed to any organisation or person without the specific permission in writing of the Commercial Manager, AEA. Reference number ED 43120001 - Issue 1 AEA group 329 Harwell Didcot Oxfordshire OX11 0QJ t: 0870 190 6083 f: 0870 190 5545 AEA is a business name of AEA Technology plc AEA is certificated to ISO9001 and ISO14001 Author Name James Craig Approved by Name Philip Michael Signature Date 1 FINAL Executive Summary The Alderney Commission for Renewable Energy (ACRE) is a body set up by the States of Alderney to license, control and regulate all forms of renewable energy within the island of Alderney and its Territorial Waters. ACRE commissioned AEA to prepare a strategic assessment of the impact on the island and its community of tidal and/or wave energy development within the Territorial Waters. This report examines the technical implications of using these technologies and the environmental and socio-economic impacts of such a development. This strategic assessment is based on an open centred, bottom mounted tidal stream generator developed by OpenHydro. Although the focus of this assessment is based on OpenHydro‟s technology other possible tidal stream and wave power technologies have been reviewed. -
Renewable Energy Resources: Tidal and Jet Stream Energies
March 7, 2015 Renewable Energy Resources: Tidal and Jet stream Energies An Interactive Qualifying Project Report completed in partial fulfillment of the Bachelor of Science degree at Worcester Polytechnic Institute. Submitted by: Dale LaPlante Iordanis Kesisolgou Yuchen Wang Submitted to: Worcester Polytechnic Institute (WPI) Professor: Mayer Humi Mathematical sciences Interactive Qualifying Project Abstract This report examines various energy resources to ensure that humanity has ample supplies for future use. Fossil fuels are forecast to be depleted within a century, and the world’s search for new technologies and sources (such as fracking) continues to negatively impact the environment. This report outlines various alternative energy sources available with focus on jet stream and tidal energy. Our goal is to survey the current state of the world’s energy basket and develop visionary suggestions for the future. 2 Interactive Qualifying Project Table of Contents Abstract ........................................................................................................................................... 2 Table of Contents ............................................................................................................................ 3 Graphs and Figures ......................................................................................................................... 6 Executive Summary ...................................................................................................................... 14 Chapter -
Ocean Energy Race the UK's Inside Track
#oceanenergyrace ocean energy race The UK’s inside track www.renewableuk.com/page/WaveTidalEnergy The UK’s Inside Track 1 Investing in regions Rooted in local economic clusters of the UK including Cornwall, the Solent and Isle of Wight, Scottish Highlands and Islands and Wales, UK marine energy is a modern UK success story and a natural growth area Together, industry and for Britain – testing and developing world-leading technology, attracting investment and exporting overseas. government can put in place the right framework for this Britain excels at research and development but too often we have failed to reap the socio-economic benefits from the commercialisation of our sector to flourish. innovations. Marine energy provides us with an opportunity to change that narrative. The Hendry Review commissioned by the Government has set out a compelling case for ground-breaking tidal lagoon technology to harness “…where wealth and opportunity are spread across every the UK’s tidal range resource. The review made clear the economic community in our United Kingdom, not just the most opportunities for the UK that the Government can seize from both prosperous places in London and the South East” investment in domestic tidal lagoon infrastructure and industry and the Rt Hon Theresa May MP, Prime Minister massive potential to export our products and expertise abroad. We must never be the protector of incumbency – but instead It also found the same opportunity exists for the UK in the development be constantly looking to create conditions to be open to new of wave and tidal stream technologies. This report takes its lead competitors and indeed to new industries that may not exist from Charles Hendry to further demonstrate these technologies’ offer anywhere today but which will shape our lives in the future” to Britain. -
Tapping the Tidal Power Potential of the Eastern Irish Sea FINAL REPORT
Joule Project JIRP106/03 Oct 2006 – Dec 2008 Tapping the Tidal Power Potential of the Eastern Irish Sea FINAL REPORT March 2009 Richard Burrows, Ian Walkington, Nick Yates, Terry Hedges, Daoyi Chen, Ming Li, Jianguo Zhou Department of Engineering, University of Liverpool, Liverpool L69 3GQ Judith Wolf, Roger Proctor, Jason Holt Proudman Oceanographic Laboratory, Liverpool L3 5DA David Prandle Consultant www.liv.ac.uk/engdept/tidalpower CONTENTS Page LIST OF FIGURES iv LIST OF TABLES ix ACKNOWLEDGEMENTS (and Definition) xiii EXECUTIVE SUMMARY ES.1 1. INTRODUCTION 1.1 1.1 Terms of reference 1.1 1.2 Background 1.1 1.3 Project aims and objectives 1.3 2. PRELIMINARY STUDIES 2.1 2.1 Initial appraisals of barrage potential based on Prandle’s approach 2.1 2.2 Reassessment of the 1980s Department of Energy barrage scheme 2.2 energy estimates 2.2.1 Conjuctive operation 2.3 3. ENERGY FROM MAJOR BARRAGE SCHEMES (0-D MODELLING) 3.1 3.1 0-D modelling context 3.1 3.2 Dee Estuary and Dee-Wirral Lagoon 3.2 3.2.1 Initial appraisal (ebb generation only) 3.3 3.2.2 Investigating different operating modes 3.5 3.2.2.1 Effect of pumping 3.6 3.2.3 Turbine conditioning 3.7 3.2.3.1 Changing generator capacity 3.7 3.2.3.2 Increasing turbine diameter 3.8 3.2.3.3 Conclusion 3.8 3.2.4 Increasing installed turbine capacity and cost implications arising 3.10 3.2.4.1 Comment and discussion 3.12 3.2.5 Increasing installed sluice capacity and cost implications arising 3.13 3.2.6 Dee Outer Barrage (Dee-Wirral Lagoon) 3.14 3.2.7 Dee Offshore Lagoon 3.15 3.3 Mersey Estuary -
Stingray Tidal Stream Energy Device - Phase 3
STINGRAY TIDAL STREAM ENERGY DEVICE - PHASE 3 CONTRACT NUMBER: T/06/00230/00/00 URN NUMBER: 05/864 The DTI drives our ambition of ‘prosperity for all’ by working to create the best environment for business success in the UK. We help people and companies become more productive by promoting enterprise, innovation and creativity. We champion UK business at home and abroad. We invest heavily in world-class science and technology. We protect the rights of working people and consumers. And we stand up for fair and open markets in the UK, Europe and the world. STINGRAY TIDAL STREAM ENERGY DEVICE - PHASE 3 T/06/00230/00/REP URN 05/864 Contractor The Engineering Business Ltd The work described in this report was carried out under contract as part of the DTI Technology Programme: New and Renewable Energy, which is managed by Future Energy Solutions. The views and judgements expressed in this report are those of the contractor and do not necessarily reflect those of the DTI or Future Energy Solutions. First published 2005 ¤ Crown Copyright 2005 EXECUTIVE SUMMARY Since 1997, The Engineering Business Ltd (EB) has been developing tidal stream generation technology. In 2002 EB designed, built and installed the worlds first full- scale tidal stream generator, the 150kW Stingray demonstrator. The Stingray concept is that the energy within tidal currents can be harnessed through oscillating hydroplanes. A full description of the concept and technology is presented in the Phase 1 and Phase 2 reports. Stingray was reinstalled in Yell Sound in the Shetland Islands between July and September 2003 for Phase 3 of the project. -
Stromeferry Tidal Generation Report
Stromeferry Tidal Generation Report Feasibility Study October 6 th 2013 47065084/001 Prepared for: The Highland Council UNITED KINGDOM & IRELAND The Highlands Council — Stromeferry Bypass Tidal Generation Feasibility Report Stage 2 Assessment REVISION SCHEDULE Rev Date Details Prepared by Reviewed by Approved by 1 09/10/2013 First Draft Josh Sherratt Graeme Cook [Name] Principle Associate [Position] Engineer Project Manager 2 07/11/2013 Revised Draft Josh Sherratt Graeme Cook [Name] Principle Associate [Position] Engineer Project Manager 3 07/03/2014 Final Issue Josh Sherratt Graeme Cook Gareth Clarke Associate Associate Technical Director Engineer Project Manager [Name] [Name] [Name] [Position] [Position] [Position] [Name] [Name] [Name] [Position] [Position] [Position] URS Infrastructure and Environment UK Limited 6-8 Greencoat Place London SW1 1PL United Kingdom STROMEFERRY TIDAL GENERATION FEASIBILITY REPORT 11 November 2013 1 The Highlands Council — Stromeferry Bypass Tidal Generation Feasibility Report Stage 2 Assessment Limitations URS Infrastructure & Environment UK Limited (“URS”) has prepared this Report for the sole use of The Highland Council (“Client”) in accordance with the Agreement under which our services were performed [(47065084 07 November 2013]. No other warranty, expressed or implied, is made as to the professional advice included in this Report or any other services provided by URS. This Report is confidential and may not be disclosed by the Client nor relied upon by any other party without the prior and express written agreement of URS. The conclusions and recommendations contained in this Report are based upon information provided by others and upon the assumption that all relevant information has been provided by those parties from whom it has been requested and that such information is accurate.