Implementation of Offshore Wind Power & Potential of Tidal, Wave
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A SOPAC Desktop Study of Ocean-Based, Renewable Energy
A SOPAC Desktop Study of Ocean-Based RENEWABLE ENERGY TECHNOLOGIES SOPAC Miscellaneous Report 701 A technical publication produced by the SOPAC Community Lifelines Programme Acknowledgements Information presented in this publication has been sourced mainly from the internet and from publications produced by the International Energy Agency (IEA). The compiler would like to thank the following for reviewing and contributing to this publication: • Dr. Luis Vega • Anthony Derrick of IT Power, UK • Guillaume Dréau of Société de Recherche du Pacifique (SRP), New Caledonia • Professor Young-Ho Lee of Korea Maritime University, Korea • Professor Chul H. (Joe) Jo of Inha University, Korea • Luke Gowing and Garry Venus of Argo Environmental Ltd, New Zealand SOPAC Miscellaneous Report 701 Pacific Islands Applied Geoscience Commission (SOPAC), Fiji • Paul Fairbairn – Manager Community Lifelines Programme • Rupeni Mario – Senior Energy Adviser • Arieta Gonelevu – Senior Energy Project Officer • Frank Vukikimoala – Energy Project Officer • Koin Etuati – Energy Project Officer • Reshika Singh – Energy Resource Economist • Atishma Vandana Lal – Energy Support Officer • Mereseini (Lala) Bukarau – Senior Adviser Technical Publications Ivan Krishna • Sailesh Kumar Sen – Graphic Arts Officer Compiler First Edition October 2009 Cover Photo Source: HTTP://WALLPAPERS.FREE-REVIEW.NET/42__BIG_WAVE.HTM Back Cover Photo: Raj Singh A SOPAC Desktop Study of Ocean-Based Renewable Energy Technologies SOPAC Miscellaneous Report 701 Ivan Krishna Compiler First Edition -
Nordic Grid Development Plan 2012 Foreword
Nordic Grid Development Plan 2012 Foreword The Nordic transmission system operators (TSOs) have a long history of successful cooperation within grid development. Three common Nordic grid master plans have been developed in the last ten years in the context of Nordel, the previous cooperative organization for the Nordic TSOs. Joint Nordic grid development is essential to support further development of an integrated Nordic electricity market, as well as increased capacity to other countries and integration of renewable energy sources (RES). The Nordic co-operation on grid development is now taking place within the wider regional context provided by the regional groups North Sea and Baltic Sea of ENTSO-E, the European organization for TSOs, in addition to bilateral co-operation when required. The Nordic Grid Development Plan 2012 is prepared as a response to the request from the Nordic Council of Ministers of October 25, 2010. The plan is prepared by Statnett, Svenska Kraftnät, Energinet.dk and Fingrid, and the Icelandic TSO Landsnet has provided input regarding the Icelandic grid. The plan presents the Nordic grid investment plans for the next ten years. 28. September 2012 Oslo Stockholm Copenhagen Helsinki Statnett SF Svenska Kraftnät Energinet.dk Fingrid Auke Lont Mikael Odenberg Peder Østermark Andreasen Jukka Ruusunen CEO CEO CEO CEO LIST OF TABLES....................................................................................................................... 2 1 EXECUTIVE SUMMARY ............................................................................................ -
OCCASION This Publication Has Been Made Available to the Public on The
OCCASION This publication has been made available to the public on the occasion of the 50th anniversary of the United Nations Industrial Development Organisation. DISCLAIMER This document has been produced without formal United Nations editing. The designations employed and the presentation of the material in this document do not imply the expression of any opinion whatsoever on the part of the Secretariat of the United Nations Industrial Development Organization (UNIDO) concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries, or its economic system or degree of development. Designations such as “developed”, “industrialized” and “developing” are intended for statistical convenience and do not necessarily express a judgment about the stage reached by a particular country or area in the development process. Mention of firm names or commercial products does not constitute an endorsement by UNIDO. FAIR USE POLICY Any part of this publication may be quoted and referenced for educational and research purposes without additional permission from UNIDO. However, those who make use of quoting and referencing this publication are requested to follow the Fair Use Policy of giving due credit to UNIDO. CONTACT Please contact [email protected] for further information concerning UNIDO publications. For more information about UNIDO, please visit us at www.unido.org UNITED NATIONS INDUSTRIAL DEVELOPMENT ORGANIZATION Vienna International Centre, P.O. Box 300, 1400 Vienna, Austria Tel: (+43-1) 26026-0 · www.unido.org · [email protected] UNIDO INVESTMENT AND TECHNOLOGY PROMOTION OFFICE For China in Beijing The Work Report 2012 December , 2012 1 TABLE OF CONTENTS Forward by Hu Yuandong, Head of the Office Yearly Special Programs under Implementation I. -
'A+' Rating Affirmed with a Stable Outlook Statnett SF
Research Update: Statnett SF 'A+' Rating Affirmed With A Stable Outlook February 26, 2020 Rating Action Overview PRIMARY CREDIT ANALYST - The Norwegian Energy Regulatory Authority (NVE) has announced that Statnett SF receives a Daniel Annas 100% efficiency score; this leads us to expect the company will capture in full the revenue cap Stockholm of its cost base. +46 (8) 4405925 daniel.annas - We expect continued ample rating headroom as our base-case scenario stipulated FFO to debt @spglobal.com to be close to 9% on average in coming years, and debt to EBITDA on average at about 8.5x, both SECONDARY CONTACT which we consider well commensurate with the 'bbb' stand-alone credit profile (SACP). Per Karlsson - We continue to view the regulatory environment for Norwegian as supportive, despite declining Stockholm weighted average cost of capital (WACC), because we view the framework as stable and (46) 8-440-5927 predictable; the WACC estimate for 2020 is 5.47%. per.karlsson @spglobal.com - We are therefore affirming our 'A+' rating and stable outlook on Statnett. ADDITIONAL CONTACT - Statnett's positive momentum in credit ratios post-2020 are hinged on RAB increasing as Industrial Ratings Europe planned, and without cost overruns. Corporate_Admin_London @spglobal.com Rating Action Rationale The regulator has announced Statnett as 100% efficient, which supports its credit ratios. On Jan. 31, the NVE announced Statnett's revenue cap, including an updated WACC estimation, at 5.47% and confirmation of a maintained 100% efficiency score. The WACC estimate decreased 35 basis points from the actual 5.82% reported in 2019, pointing to declining free-rate risk, computed as the average five-year swap rate from the most recent calendar year. -
Joint Messages Roundtable of European Energy Industrialists Brussels, 7 February 2013
w JOINT MESSAGES Roundtable of European Energy Industrialists Brussels, 7 February 2013 Empowering Market and Consumers The Roundtable of European Energy Industrialists, meeting in Brussels on 7 February 2013, represents companies that will invest more than € 75 billion by 2020. Between now and 2050, the energy industry as a whole will create millions of jobs and make a considerable contribution to economic growth. Eu- rope is now preparing its next vital steps towards a green energy transformation so comprehensive, that it overshadows all previous attempts at climate change mitigation around the world. By taking global leadership in realizing a low-carbon future, Europe's investment in infrastructure may foster a recovery from the economic downturn. Above all, the Roundtable of European Energy Industrialists believes that the future is electric, and that efficient electricity markets must be crucial in implementing this transformation. We therefore support the commitment of the European Commission to complete the internal energy market without delay. In summary, better markets, stronger grids, and smarter technologies are keys to Europe's energy transformation. – 1 – w 1. Better Markets The internal market is fundamental to efficient use of resources. In the short-term electricity market integration leads to increased liquidity and transparency in wholesale markets, more competitive prices and more freedom for consumers. In the long term, well-functioning electricity markets, stable regu- latory regimes and a robust emission-trading scheme will provide the signals for efficient investments. The reality, however, is that progress to complete the internal electricity market is slow and many ener- gy companies are having to deal with significant and rapid moves back to re-regulation of the sector at national levels. -
Tidal Turbine Array Optimization Based on the Discrete Particle
China Ocean Eng., 2018, Vol. 32, No. 3, P. 358–364 DOI: https://doi.org/10.1007/s13344-018-0037-6, ISSN 0890-5487 http://www.chinaoceanengin.cn/ E-mail: [email protected] Tidal Turbine Array Optimization Based on the Discrete Particle Swarm Algorithm WU Guo-weia, WU Hea, *, WANG Xiao-yonga, ZHOU Qing-weia, LIU Xiao-manb aNational Ocean Technology Center, Tianjin 300112, China bSatellite Environment Center, Ministry of Environmental Protection, Beijing 100094, China Received May 18, 2017; revised February 11, 2018; accepted March 23, 2018 ©2018 Chinese Ocean Engineering Society and Springer-Verlag GmbH Germany, part of Springer Nature Abstract In consideration of the resource wasted by unreasonable layout scheme of tidal current turbines, which would influence the ratio of cost and power output, particle swarm optimization algorithm is introduced and improved in the paper. In order to solve the problem of optimal array of tidal turbines, the discrete particle swarm optimization (DPSO) algorithm has been performed by re-defining the updating strategies of particles’ velocity and position. This paper analyzes the optimization problem of micrositing of tidal current turbines by adjusting each turbine’s position, where the maximum value of total electric power is obtained at the maximum speed in the flood tide and ebb tide. Firstly, the best installed turbine number is generated by maximizing the output energy in the given tidal farm by the Farm/Flux and empirical method. Secondly, considering the wake effect, the reasonable distance between turbines, and the tidal velocities influencing factors in the tidal farm, Jensen wake model and elliptic distribution model are selected for the turbines’ total generating capacity calculation at the maximum speed in the flood tide and ebb tide. -
Marine Current Energy Conversion
Marine Current Energy Conversion Resource and Technology MÅRTEN GRABBE UURIE 309-09L ISSN 0349-8352 Division of Electricity Department of Engineering Sciences Uppsala, December 2008 Abstract Research in the area of energy conversion from marine currents has been car- ried out at the Division of Electricity for several years. The focus has been to develop a simple and robust system for converting the kinetic energy in freely flowing water to electricity. The concept is based on a vertical axis turbine di- rectly coupled to a permanent magnet synchronous generator that is designed to match the characteristics of the resource. During this thesis work a pro- totype of such a variable speed generator, rated at 5 kW at 10 rpm, has been constructed to validate previous finite element simulations. Experiments show that the generator is well balanced and that there is reasonable agreement be- tween measurements and corresponding simulations, both at the nominal op- erating point and at variable speed and variable load operation from 2–16 rpm. It is shown that the generator can accommodate operation at fixed tip speed ratio with different fixed pitch vertical axis turbines in current velocities of 0.5–2.5 m/s. The generator has also been tested under diode rectifier opera- tion where it has been interconnected with a second generator on a common DC-bus similar to how several units could be connected in offshore operation. The conditions for marine current energy conversion in Norway have been investigated based on available data in pilot books and published literature. During this review work more than 100 sites have been identified as interest- ing with an estimated total theoretical resource—i.e. -
Tidal Effect Compensation System for Wave Energy Converters
TVE 11 036 Examensarbete 30 hp September 2011 Tidal Effect Compensation System for Wave Energy Converters Valeria Castellucci Institutionen för teknikvetenskaper Department of Engineering Sciences Abstract Tidal Effect Compensation System for Wave Energy Converters Valeria Castellucci Teknisk- naturvetenskaplig fakultet UTH-enheten Recent studies show that there is a correlation between water level and energy absorption values for wave energy converters: the absorption decreases when the Besöksadress: water levels deviate from average. The effect for the studied WEC version is evident Ångströmlaboratoriet Lägerhyddsvägen 1 for deviations greater then 25 cm, approximately. The real problem appears during Hus 4, Plan 0 tides when the water level changes significantly. Tides can compromise the proper functioning of the generator since the wire, which connects the buoy to the energy Postadress: converter, loses tension during a low tide and hinders the full movement of the Box 536 751 21 Uppsala translator into the stator during high tides. This thesis presents a first attempt to solve this problem by designing and realizing a small-scale model of a point absorber Telefon: equipped with a device that is able to adjust the length of the rope connected to the 018 – 471 30 03 generator. The adjustment is achieved through a screw that moves upwards in Telefax: presence of low tides and downwards in presence of high tides. The device is sized 018 – 471 30 00 to one-tenth of the full-scale model, while the small-scaled point absorber is dimensioned based on buoyancy's analysis and CAD simulations. Calculations of Hemsida: buoyancy show that the sensitive components will not be immersed during normal http://www.teknat.uu.se/student operation, while the CAD simulations confirm a sufficient mechanical strength of the model. -
Action Points to Advance Commercialisation of the Dutch Tidal Energy Sector
Action points to advance commercialisation of the Dutch tidal energy sector An analysis of the tidal energy Technological Innovation System in combination with lessons learned from the development of the wind energy industry Master thesis J.P. van Zuijlen Figure 1. Eastern Scheldt storm surge barrier. Source: http://dutchmarineenergy.com/ Name: Johannes Petrus (Jan) van Zuijlen Student nr: 5610494 Email: [email protected] Utrecht University University supervisors: 1st: Prof. dr. Gert Jan Kramer 2nd: Dr. Paul Schot University innovation supervisor: Dr. Maryse M.H. Chappin ECTS: 30 Company: Dutch Marine Energy Centre Supervisor: Britta Schaffmeister MSc Date: 19/01/2018 2 Abstract Water management has traditionally been focused on water safety, hygiene and agricultural problems, however, given the current need for sustainability in order to combat climate change, the possible production of sustainable energy is a desirable extension of integral water management. Tidal energy is a form of ocean energy which harnesses energy from the tides and has the potential to contribute significantly to sustainable energy solutions in certain coastal regions, thereby reducing carbon emissions and fighting climate change worldwide. Activities surrounding tidal energy have grown substantially over the last 10 years in Europe as well as in the Netherlands, however the technology is diffusing slowly. The aim of this thesis is finding action points that will advance commercialisation of the Dutch tidal energy sector. The method consists of a desk study on the evolution of wind energy in combination with a Technological Innovation System analysis of the Dutch tidal energy sector for which 12 professionals have been interviewed. This study showed that the following three aspects of the tidal energy TIS performance poorly and need attention: Market formation, the creation of legitimacy and knowledge development. -
Cost Assessment Methodology and Economic Viability of Tidal Energy Projects
energies Article Cost Assessment Methodology and Economic Viability of Tidal Energy Projects Eva Segura 1, Rafael Morales 1,* and José A. Somolinos 2 1 Escuela de Ingenieros Industriales de Albacete, Universidad de Castilla-La Mancha, 02071 Albacete, Spain; [email protected] 2 Escuela Técnica Superior de Ingenieros Navales, Universidad Politécnica de Madrid, 28040 Madrid, Spain; [email protected] * Correspondence: [email protected]; Tel.: +34-967-599-200 (ext. 2542); Fax: +34-967-599-224 Received: 15 September 2017; Accepted: 6 November 2017; Published: 9 November 2017 Abstract: The exploitation of technologies with which to harness the energy from ocean currents will have considerable possibilities in the future thanks to their enormous potential for electricity production and their high predictability. In this respect, the development of methodologies for the economic viability of these technologies is fundamental to the attainment of a consistent quantification of their costs and the discovery of their economic viability, while simultaneously attracting investment in these technologies. This paper presents a methodology with which to determine the economic viability of tidal energy projects, which includes a technical study of the life-cycle costs into which the development of a tidal farm can be decomposed: concept and definition, design and development, manufacturing, installation, operation and maintenance and dismantling. These cost structures are additionally subdivided by considering their sub-costs and bearing in mind the main components of the tidal farm: the nacelle, the supporting tidal energy converter structure and the export power system. Furthermore, a technical study is developed in order to obtain an estimation of the annual energy produced (and, consequently, the incomes generated if the electric tariff is known) by considering its principal attributes: the characteristics of the current, the ability of the device to capture energy and its ability to convert and export the energy. -
An Overview of the Best Suitable Locations for Marine Renewable
An overview of the best suitable locations for marine renewable energy (MRE) development in the PECC economies given local constraints and opportunities: ‘The best locations worldwide’ Marc Le Boulluec Energy Transition 2013-2014 Transition Energy [email protected] June 24-25, 2014 | Santiago, Chile | 2014 June24-25, Ifremer, Centre de Bretagne Laboratoire Comportement des Structures en Mer PECC International Project: Project: PECCInternational From Prototype to Market: Development of marine renewable energy policies and regional cooperation 1 What are : ‘The best locations worldwide’ ? Energy Transition 2013-2014 Transition Energy June 24-25, 2014 | Santiago, Chile | 2014 June24-25, No definite answer but a combination of items to address PECC International Project: Project: PECCInternational and some possible tracks From Prototype to Market: Development of marine renewable energy policies and regional cooperation 2 Best locations = Combination of Resource availability versus Loads on structures Energy use at short distance or Energy transport on long distance Grid connection and energy storage Industry and transport infrastructures : shipyards, harbours,… Energy Transition 2013-2014 Transition Energy June 24-25, 2014 | Santiago, Chile | 2014 June24-25, Facilities and associated manpower (training and education) Installation Operation and maintenance Dismantling PECC International Project: Project: PECCInternational Monitoring Environmental and Social acceptability From Prototype to Market: Development of marine renewable energy policies and regional cooperation 3 Resource and loads addressed during PECC Seminar 2 on Marine Resources: Oceans as a Source of Renewable Energy Wind Currents Waves Energy Transition 2013-2014 Transition Energy June 24-25, 2014 | Santiago, Chile | 2014 June24-25, Thermal + Biomass + Salinity gradient PECC International Project: Project: PECCInternational From Prototype to Market: Development of marine renewable energy policies and regional cooperation 4 Wind energy Wind energy is an intermittent resource. -
Future System Inertia 2
REPORT Future System Inertia 2 PARTICIPANTS Erik Ørum Energinet.dk Liisa Haarla Fingrid Mikko Kuivaniemi Fingrid Minna Laasonen Fingrid Anders Jerkø Statnett Inge Stenkløv Statnett Fredrik Wik Svenska kraftnät Katherine Elkington Svenska kraftnät Robert Eriksson Svenska kraftnät Niklas Modig Svenska kraftnät Pieter Schavemaker E-Bridge Consulting B.V. (PM) ENTSO-E AISBL • Avenue Cortenbergh 100 • 1000 Brussels • Belgium • Tel +32 2 741 09 50 • Fax +32 2 741 09 51 • [email protected] • www.entsoe.eu European Network of Transmission System Operators for Electricity Contents FUTURE SYSTEM INERTIA 2 ........................................................................................................1 1. EXECUTIVE SUMMARY ..........................................................................................................7 1.1 INTRODUCTION AND SCOPE ................................................................................................................................. 7 1.2 RESULTS AND CONCLUSIONS ................................................................................................................................ 7 1.3 NEXT STEPS ..................................................................................................................................................... 9 2. INTRODUCTION ................................................................................................................. 11 2.1 SCOPE FOR THE PROJECT ..................................................................................................................................