Concrete Support Structures for Offshore Wind Turbines: Current Status, Challenges, and Future Trends
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Gravity-Based Foundations in the Offshore Wind Sector
Journal of Marine Science and Engineering Review Gravity-Based Foundations in the Offshore Wind Sector M. Dolores Esteban *, José-Santos López-Gutiérrez and Vicente Negro Research Group on Marine, Coastal and Port Environment and other Sensitive Areas, Universidad Politécnica de Madrid, E28040 Madrid, Spain; [email protected] (J.-S.L.-G.); [email protected] (V.N.) * Correspondence: [email protected] Received: 27 December 2018; Accepted: 24 January 2019; Published: 12 March 2019 Abstract: In recent years, the offshore wind industry has seen an important boost that is expected to continue in the coming years. In order for the offshore wind industry to achieve adequate development, it is essential to solve some existing uncertainties, some of which relate to foundations. These foundations are important for this type of project. As foundations represent approximately 35% of the total cost of an offshore wind project, it is essential that they receive special attention. There are different types of foundations that are used in the offshore wind industry. The most common types are steel monopiles, gravity-based structures (GBS), tripods, and jackets. However, there are some other types, such as suction caissons, tripiles, etc. For high water depths, the alternative to the previously mentioned foundations is the use of floating supports. Some offshore wind installations currently in operation have GBS-type foundations (also known as GBF: Gravity-based foundation). Although this typology has not been widely used until now, there is research that has highlighted its advantages over other types of foundation for both small and large water depth sites. There are no doubts over the importance of GBS. -
Suction Caisson Track Record 2019
Suction Caisson Track Record 2019 Expertise, Seabed and Below. cathiegroup.com Pushing Boundaries, Delivering Solutions cathie-associates.com Client Project Name Description Date Region Sector Genesis Oil and Gas Detailed design and seismic assessment of suction caissons for a manifold Consultants Ltd Design experience & fishing protection structure. 2019 Middle East Oil & Gas Third party driveability analysis for CP and assessment of suction-assisted Northern Total E&P Third-party review penetration of CAN-ductor (composite CP and suction can). 2018-2019 Europe Oil & Gas FPSO mooring anchor concept selection (driven or suction pile), FEED- stage sizing and installation analysis of selected concept (suction caisson), including inverse catenary assessment and effect of seismic loading/ SBM Offshore Design experience liquefaction. 2018-2019 Oceania Oil & Gas R&D and development of Development of philosophy and design standard doucments for design methods/ geotechnical anchor systems, which will be part of SBM Corporate Northern SBM Offshore guidelines Specifications, Geotechnical discipline. 2018-2019 Europe Oil & Gas R&D and development of design methods/guide- Update seismic design guidelines to address specific Technip queries Northern Technip U.K. lines (including design of caisson foundations). 2018-2019 Europe Oil & Gas Mc Dermott Inc Foundation design review Design review of skirted mudmat and bucket foundations . 2018 Mediterranean Oil & Gas Holding capacity analysis accounting f.or chain trenching for different ExxonMobil Third-party review configurations. 2018 Africa Oil & Gas Suction Caisson Track Record 2019 Client Project Name Description Date Region Sector Geotechnical design review of 2 Universal Foundation monobucket designs for Deutsche Bucht site in Germany. The review covers document review Northern Offshore Van Oord Third-party review and independent installation and in-service design calculations. -
Suction Caissons: Model Tests PI’S: R.E
1 Comprehensive Status Report: November 18, 2004 OTRC Project Title: Suction Caissons & Vertically Loaded Anchors MMS Project 362 TO 16169 Project Subtitle: Suction Caissons: Model Tests PI’s: R.E. Olson, Alan Rauch, & Robert B. Gilbert MMS COTR: A. Konczvald This report provides a comprehensive summary the research completed in all prior Phases of this project (September 1999 – August 2004), and describes research being done in the present Phase (September 2004 – August 2005) to complete this project. Note that this report addresses one of four related research areas on this project. The other three areas are reported separately under the subtitles – Suction Caissons: Seafloor Characterization for Deepwater Foundations, Suction Caissons: Finite Element Modeling, and Suction Caissons & Vertically Loaded Anchors: Design Analysis Methods. Suction Caissons: Model Tests Roy E. Olson and Robert B. Gilbert BRIEF HISTORY OF OFFSHORE STRUCTURES The intent of this introductory section is to provide a brief history of evolution that led to use of suction caissons. It is not intended to deal with offshore structures in general, nor with structures not part of the evolution of suction caissons. Further, views here are those of the authors and may not represent the convoluted manner in which developments typically occur. The early offshore oil production structures were steel frames (Fig. 1), called jackets, which were fixed to the seafloor using open-end steel pipe piles that were driven through the jacket legs and then welded to the jacket. When oil was discovered in the North Sea, the subsoil was generally stiff enough that shallow foundations could be used. This allowed the design to change to gravity platforms (Fig. -
Integrated Offshore Networks: the Context of Our Work
Developing offshore grids : An integrated approach Place your chosen image here. The four corners must just cover the arrow tips. For covers, the three pictures should be the same size and in a straight line. Andrew Hiorns Integrated offshore networks: the context of our work Sustainability We are interested in establishing workable arrangements at the lowest costs for UK consumers such that: The potential deliverability of offshore wind is maximised Security of supply and network resilience are maximised The overall cost to consumers is minimised Affordability The scale of potential offshore a Offshore wind leased wind necessitates reflection on capacity* the delivery challenges: 1GW Security of supply 7GW European interconnection Technology development Security of 32GW supply Supply chain capability Planning consents Financing Round 1 Round 2 Round 3 Skills * Source: DECC website 2 http://www.decc.gov.uk/en/content/cms/what_we_do/uk_supply/energy_mix/renewable/policy/offshore/wind_leasing/wind_leasing.aspx 1 Assumptions: Generation mix scenarios 2008/09 TRANSMISSION SYSTEM AS AT 31st DECEMBER 2007 400kV Substations 275kV Substations Slow Progression 132kV Substations 400kV Circuits 275kV Circuits 132kV Circuits Major Generating Sites Including Pumped Storage Pentland Firth Connected at 400kV THE SHETLAND ISLANDS 6 Connected at 275kV 9,724MW offshore wind in 2020 Hydro Generation 23,174MW offshore wind in 2030 1 21% renewable electricity generation 2020 target missed 5 7 8 9 2 10 Gone Green 4 3 16,374MW offshore wind -
Finite Element Analysis of Suction Bucket Foundations in Sand Subjected to Cyclic Loading
Finite Element Analysis of Suction Bucket Foundations in Sand Subjected to Cyclic Loading Ingerid Elisabeth Rolstad Jahren Civil and Environmental Engineering Submission date: June 2018 Supervisor: Hans Petter Jostad, IBM Norwegian University of Science and Technology Department of Civil and Environmental Engineering i Preface This is a master thesis written in the spring of 2018 as the final part of my M.Sc. degree in Civil and Environmental Engineering at the Norwegian University of Science and Technology (NTNU) in Trondheim. The thesis is a part of the master’s programme in Geotechnical Engi- neering at the department of Civil and Environmental Engineering. The thesis has been carried out in a cooperation with the Norwegian Geotechnical Institute (NGI), which also proposed the thesis. Trondheim, 2018-06-10 Ingerid Rolstad Jahren iii Acknowledgement I would like to express my gratitude to my academic supervisor Adjunct Prof. Hans Petter Jostad, NGI, who provided great insight and expertise throughout the thesis work. His interest and enthusiasm for the topic in addition to great knowledge is truly inspiring. I also thank members of the staff at the Geotechnical Division at NTNU for kindly sharing their wisdom during my years as a student at NTNU. Finally, thank you to all my fellow students for valuable discussions and support. I.R.J. v Abstract A suction bucket or suction caisson is a foundation concept for supporting offshore installa- tions. The practical experience related to this concept is mainly based on applications in the oil and gas industry. Observations show significant difference in response for wind turbines compared to more traditional installations offshore. -
The Offshore Wind Energy Sector in Taiwan
THE OFFSHORE WIND ENERGY SECTOR IN TAIWAN The Offshore Wind Power Industry in Taiwan Flanders Investment & Trade Taipei Office The Offshore Wind Power Industry in Taiwan | 01/2014 ____________________________________________________ 3 1. CONTENTS 2. INTRODUCTION .......................................................................................... 7 3. CURRENT ONSHORE WIND POWER IN TAIWAN ............................................... 8 4. CURRENT OFFSHORE WIND POWER DEVELOPMENT IN TAIWAN ....................... 10 A. OFFSHORE WIND POTENTIAL ................................................................... 10 B. TAIWAN’S TARGETS & EFFORTS FOR DEVELOPING WIND ENERGY ................. 11 C. LOCALIZATION OF SUPPLY CHAIN TO MEET LOCAL ENVIRONMENT NEEDS ...... 16 5. MAJOR PLAYERS IN TAIWAN ....................................................................... 17 A. GOVERNMENT AGENCIES ......................................................................... 17 B. MAJOR WIND FARM DEVELOPERS ............................................................. 18 C. MAJOR R&D INSTITUTES, INDUSTRIAL ASSOCIATIONS AND COMPANIES ........ 19 6. INTERACTION BETWEEN BELGIUM AND TAIWAN ............................................ 23 The Offshore Wind Power Industry in Taiwan | 01/2014 ____________________________________________________ 5 2. INTRODUCTION Taiwan is an island that highly relies on imported energy (97~99%) to sustain the power supply of the country. Nuclear power was one of the solutions to be pursued to resolve the high dependency of the -
Renewables Investor Event
Renewables Investor Event 29 September 2020 1 © Subsea 7 - 2020 Subsea 7 Renewables Forward looking statements This announcement may contain ‘forward-looking statements’ (within the meaning of the safe harbour provisions of the U.S. Private Securities Litigation Reform Act of 1995). These statements relate to our current expectations, beliefs, intentions, assumptions or strategies regarding the future and are subject to known and unknown risks that could cause actual results, performance or events to differ materially from those expressed or implied in these statements. Forward-looking statements may be identified by the use of words such as ‘anticipate’, ‘believe’, ‘estimate’, ‘expect’, ‘future’, ‘goal’, ‘intend’, ‘likely’ ‘may’, ‘plan’, ‘project’, ‘seek’, ‘should’, ‘strategy’ ‘will’, and similar expressions. The principal risks which could affect future operations of the Group are described in the ‘Risk Management’ section of the Group’s Annual Report and Consolidated Financial Statements for the year ended 31 December 2019. Factors that may cause actual and future results and trends to differ materially from our forward-looking statements include (but are not limited to): (i) our ability to deliver fixed price projects in accordance with client expectations and within the parameters of our bids, and to avoid cost overruns; (ii) our ability to collect receivables, negotiate variation orders and collect the related revenue; (iii) our ability to recover costs on significant projects; (iv) capital expenditure by oil and gas companies, -
Länderprofil Großbritannien Stand: Juli / 2013
Länderprofil Großbritannien Stand: Juli / 2013 Impressum Herausgeber: Deutsche Energie-Agentur GmbH (dena) Regenerative Energien Chausseestraße 128a 10115 Berlin, Germany Telefon: + 49 (0)30 72 6165 - 600 Telefax: + 49 (0)30 72 6165 – 699 E-Mail: [email protected] [email protected] Internet: www.dena.de Die dena unterstützt im Rahmen der Exportinitiative Erneuerbare Energien des Bundesministeriums für Wirtschaft und Technologie (BMWi) deutsche Unternehmen der Erneuerbare-Energien-Branche bei der Auslandsmarkterschließung. Dieses Länderprofil liefert Informationen zur Energiesituation, zu energiepolitischen und wirtschaftlichen Rahmenbedingungen sowie Standort- und Geschäftsbedingungen für erneuerbare Energien im Überblick. Das Werk einschließlich aller seiner Teile ist urheberrechtlich geschützt. Jede Verwertung, die nicht ausdrücklich vom Urheberrechtsgesetz zugelassen ist, bedarf der vorherigen Zustimmung der dena. Sämtliche Inhalte wurden mit größtmöglicher Sorgfalt und nach bestem Wissen erstellt. Die dena übernimmt keine Gewähr für die Aktualität, Richtigkeit, Vollständigkeit oder Qualität der bereitgestellten Informationen. Für Schäden materieller oder immaterieller Art, die durch Nutzen oder Nichtnutzung der dargebotenen Informationen unmittelbar oder mittelbar verursacht werden, haftet die dena nicht, sofern ihr nicht nachweislich vorsätzliches oder grob fahrlässiges Verschulden zur Last gelegt werden kann. Offizielle Websites www.renewables-made-in-germany.com www.exportinitiative.de Länderprofil Großbritannien – Informationen für -
Enel Green Power: Is China an Attractive Market for Entry?
Department of Business and Management Chair of M&A and Investment Banking ENEL GREEN POWER: IS CHINA AN ATTRACTIVE MARKET FOR ENTRY? SUPERVISOR Prof. Luigi De Vecchi CANDIDATE Mario D’Avino matr. 641711 CO – SUPERVISOR Prof. Simone Mori ACADEMIC YEAR 2012/13 “A chi mi ha trasmesso l’umiltà e la curiosità, sorgenti prime per la sete del sapere. A chi mi ha sempre smosso dagli allori, forgiandomi di una continua motivazione, perché il vincente è colui che non si ferma, ma imperterrito, già guarda oltre. A chi mi ha insegnato la costanza e la precisione, onniscienti linee guida nel raggiungimento di ogni traguardo. A chi mi ha mostrato la forza della tenacia, arma imprescindibile per lottare senza tregua e non mollare mai. Ed infine a colui che, onnipresente, accompagna ogni mio passo, senza far rumore.” 1 TABLE OF CONTENTS INTRODUCTION……………………………………………………. 7 CHAPTER 1 - “AN OVERVIEW OF THE RENEWABLE SECTOR” 1.1. RENEWABLE ENERGY…………………………………………… 9 1.1.1. History……………………………………………………………….. 11 1.1.2. Wind Power………………………………………………………….. 12 1.1.3. Hydropower………………………………………………………….. 13 1.1.4. Solar Power…………………………………………………………... 14 1.1.5. Biomass Power………………………………………………………. 16 1.1.6. Geothermal Power…………………………………………………… 17 1.2. GLOBAL MARKET OVERVIEW………………………………….. 18 1.2.1. Power Sector…………………………………………………………. 20 CHAPTER 2 - “ANALYSIS OF THE HISTORICAL AND PLANNED INVESTMENTS IN THE RENEWABLE SECTOR” 2.1. HISTORICAL TREND……………………………………………… 26 2.1.1. Global Overview 2012……………………………………………….. 26 2.1.2. Investment Breakdown by Country………………………………….. 27 2.1.3. Investment Breakdown by Sector……………………………………. 30 2.1.4. Investment Breakdown by Type……………………………………... 32 2.1.5. Bank Finance………………………………………………………… 34 2.2. PLANNED INVESTMENT…………………………………………. -
ABLE Marine Energy Park (AMEP) ABLE Humber Port, East Coast, UK Establishing a New Offshore Wind Cluster
ABLE Marine Energy Park (AMEP) ABLE Humber Port, East Coast, UK Establishing a New Offshore Wind Cluster Information on AMEP to Support the Attraction of Offshore Wind Activity - 2021 Contents 3. Introduction 4. ABLE Marine Energy Park Aerial View 5. Location - Connectivity to Europe 6. Location - Road & Rail 7. Location - Proximity to Market 8. AMEP - The Offer 9. AMEP - Freeport Status 10. AMEP - Optimum Site Solutions 11. AMEP - Indicative Working Plan 12. AMEP - Offshore Wind Work Flow 13. Hornsea One Offshore Wind Farm 14. Triton Knoll Offshore Wind Farm 15. Dogger Bank Offshore Wind Farm 16. Planning - Fully Consented 17. Cost Reduction Opportunities 18. Wind Installation Vessels - Benefits 19. AMEP - Technical Specification 21. AMEP - Operating Model 22. AMEP - Competitive Advantage 23. Heavy Lift & Transport Services 24. The Humber Estuary Characteristics 25. Humber - Tees & Tyne Comparisons 27. Workforce - Productivity 28. Workforce - Availability 29. Production & Assembly - Workforce 31. Financial Support for Investment Document Reference: CM.NFE-AMEP-OSW-29 January 2021 Introduction ABLE Marine Energy Park (AMEP). Able Marine Energy Park (AMEP) is a port development on the south bank of the Humber Estuary on the East Coast of the United Kingdom. It is a nationally significant infrastructure project (NSIP) and is recognised as a core development within the UK Government Infrastructure Roadmap. The AMEP project base case involves developing Phase 1 with 1,349m of installation quays, 4no. installation yards (78.63 ha), with an additional 139 ha for manufacturer storage. It represents a singular opportunity for the UK to establish a world-scale industrial cluster and enable the UK to maximise the economic development potential provided by the combination of the emerging market and supportive policies. -
Forecast from 2016-17 to 2019-20
Tariff Information Paper Forecast TNUoS tariffs from 2016/17 to 2019/20 This information paper provides a forecast of Transmission Network Use of System (TNUoS) tariffs from 2016/17 to 2019/20. These tariffs apply to generators and suppliers. This annual publication is intended to show how tariffs may evolve over the next five years. The forecast tariffs for 2016/17 will be refined throughout the year. 28 January 2015 Version 1.0 1 Contents 1. Executive Summary....................................................................................4 2. Five Year Tariff Forecast Tables ...............................................................5 2.1 Generation Tariffs ................................................................................. 5 2.2 Onshore Local Circuit Tariffs ..............................................................10 2.3 Onshore Local Substation Tariffs .......................................................12 Any Questions? 2.4 Offshore Local Tariffs .........................................................................12 2.5 Demand Tariffs ...................................................................................13 Contact: 3. Key Drivers for Tariff Changes................................................................14 Mary Owen 3.1 CMP213 (Project TransmiT)...............................................................14 Stuart Boyle 3.2 HVDC Circuits.....................................................................................14 3.3 Contracted Generation .......................................................................15 -
Transmission Networks Connections Update
Transmission Networks Connections Update May 2015 SHE-T–TO SPT–TO NG–TO/SO SHE-T–TO SPT–TO NG–TO/SO Back to Contents TNCU – May 2015 Page 01 Contents Foreword ////////////////////////////////////////////////////////////////// 02 1. Introduction /////////////////////////////////////////////////////////// 03 2. Connection timescales ///////////////////////////////////////////// 04 Illustrative connection timescales /////////////////////////////////////// 04 Connections by area /////////////////////////////////////////////////////// 05 3. GB projects by year ///////////////////////////////////////////////// 06 Contracted overall position /////////////////////////////////////////////// 08 Renewable projects status by year ///////////////////////////////////// 10 Non-Renewable projects status by year – Excluding Nuclear /// 11 Non-Renewable projects status by year – Nuclear only ////////// 12 Interconnector projects status by year //////////////////////////////// 13 4. Additional data by transmission owner ///////////////////////// 14 National Grid Electricity Transmission plc //////////////////////////// 16 Scottish Hydro Electricity Transmission plc ////////////////////////// 18 Scottish Power Transmission Limited ///////////////////////////////// 20 5. Connection locations /////////////////////////////////////////////// 22 Northern Scotland projects map //////////////////////////////////////// 25 Southern Scotland projects map /////////////////////////////////////// 28 Northern England projects map /////////////////////////////////////////